Yes, but when argument matching for a reference, the implicit array to pointer isn't automatic, so you need something like:

void foo( double (&array)[42] );

or

void foo( double (&array)[] );

Be aware, however, that when matching, double [42] and double [] are distinct types. If you have an array of an unknown dimension, it will match the second, but not the first, and if you have an array with 42 elements, it will match the first but not the second. (The latter is, IMHO, very counter-intuitive.)

In the second case, you'll also have to pass the dimension, since there's no way to recover it once you're inside the function.

If you want to pass variables by reference, a better way to do that is by passing your arguments in an object and then start changing the value by using window:

window["varName"] = value;

Example:

// Variables with first values
var x = 1, b = 0, f = 15;


function asByReference (
    argumentHasVars = {},   // Passing variables in object
    newValues = [])         // Pass new values in array
{
    let VarsNames = [];

    // Getting variables names one by one
    for(let name in argumentHasVars)
        VarsNames.push(name);

    // Accessing variables by using window one by one
    for(let i = 0; i < VarsNames.length; i += 1)
        window[VarsNames[i]] = newValues[i]; // Set new value
}

console.log(x, b, f); // Output with first values

asByReference({x, b, f}, [5, 5, 5]); // Passing as by reference

console.log(x, b, f); // Output after changing values

A very detailed explanation about copying, passing and comparing by value and by reference is in this chapter of the "JavaScript: The Definitive Guide" book.

Before we leave the topic of manipulating objects and arrays by reference, we need to clear up a point of nomenclature.

The phrase "pass by reference" can have several meanings. To some readers, the phrase refers to a function invocation technique that allows a function to assign new values to its arguments and to have those modified values visible outside the function. This is not the way the term is used in this book.

Here, we mean simply that a reference to an object or array -- not the object itself -- is passed to a function. A function can use the reference to modify properties of the object or elements of the array. But if the function overwrites the reference with a reference to a new object or array, that modification is not visible outside of the function.

Readers familiar with the other meaning of this term may prefer to say that objects and arrays are passed by value, but the value that is passed is actually a reference rather than the object itself.

This is not possible. You could say

Client.WorkPhone = GetString(inputString, Client.WorkPhone);

where WorkPhone is a writeable string property and the definition of GetString is changed to

private string GetString(string input, string current) { 
    if (!string.IsNullOrEmpty(input)) {
        return input;
    }
    return current;
}

This will have the same semantics that you seem to be trying for.

This isn't possible because a property is really a pair of methods in disguise. Each property makes available getters and setters that are accessible via field-like syntax. When you attempt to call GetString as you've proposed, what you're passing in is a value and not a variable. The value that you are passing in is that returned from the getter get_WorkPhone.

Make a

class PassMeByRef { public int theValue; }

then pass a reference to an instance of it. Note that a method that mutates state through its arguments is best avoided, especially in parallel code.

I guess its clearer when you do it like this. I recommend downloading LinqPad to test things like this.

void Main()
{
    var Person = new Person(){FirstName = "Egli", LastName = "Becerra"};

    //Will update egli
    WontUpdate(Person);
    Console.WriteLine("WontUpdate");
    Console.WriteLine($"First name: {Person.FirstName}, Last name: {Person.LastName}\n");

    UpdateImplicitly(Person);
    Console.WriteLine("UpdateImplicitly");
    Console.WriteLine($"First name: {Person.FirstName}, Last name: {Person.LastName}\n");

    UpdateExplicitly(ref Person);
    Console.WriteLine("UpdateExplicitly");
    Console.WriteLine($"First name: {Person.FirstName}, Last name: {Person.LastName}\n");
}

//Class to test
public class Person{
    public string FirstName {get; set;}
    public string LastName {get; set;}

    public string printName(){
        return $"First name: {FirstName} Last name:{LastName}";
    }
}

public static void WontUpdate(Person p)
{
    //New instance does jack...
    var newP = new Person(){FirstName = p.FirstName, LastName = p.LastName};
    newP.FirstName = "Favio";
    newP.LastName = "Becerra";
}

public static void UpdateImplicitly(Person p)
{
    //Passing by reference implicitly
    p.FirstName = "Favio";
    p.LastName = "Becerra";
}

public static void UpdateExplicitly(ref Person p)
{
    //Again passing by reference explicitly (reduntant)
    p.FirstName = "Favio";
    p.LastName = "Becerra";
}

And that should output

WontUpdate

First name: Egli, Last name: Becerra

UpdateImplicitly

First name: Favio, Last name: Becerra

UpdateExplicitly

First name: Favio, Last name: Becerra

Javascript is pass by value, and which essentially means part is a copy of the value in the array.

To change the value, access the array itself in your loop.

arr[index] = 'new value';

You can also overload the Function prototype:

// partially applies the specified arguments to a function, returning a new function
Function.prototype.curry = function( ) {
    var func = this;
    var slice = Array.prototype.slice;
    var appliedArgs = slice.call( arguments, 0 );

    return function( ) {
        var leftoverArgs = slice.call( arguments, 0 );
        return func.apply( this, appliedArgs.concat( leftoverArgs ) );
    };
};

// can do other fancy things:

// flips the first two arguments of a function
Function.prototype.flip = function( ) {
    var func = this;
    return function( ) {
        var first = arguments[0];
        var second = arguments[1];
        var rest = Array.prototype.slice.call( arguments, 2 );
        var newArgs = [second, first].concat( rest );

        return func.apply( this, newArgs );
    };
};

/*
e.g.

var foo = function( a, b, c, d ) { console.log( a, b, c, d ); }
var iAmA = foo.curry( "I", "am", "a" );
iAmA( "Donkey" );
-> I am a Donkey

var bah = foo.flip( );
bah( 1, 2, 3, 4 );
-> 2 1 3 4
*/

It's by value according to the PHP Documentation.

By default, function arguments are passed by value (so that if the value of the argument within the function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed by reference.

To have an argument to a function always passed by reference, prepend an ampersand (&) to the argument name in the function definition.

<?php
function add_some_extra(&$string)
{
    $string .= 'and something extra.';
}

$str = 'This is a string, ';
add_some_extra($str);
echo $str;    // outputs 'This is a string, and something extra.'
?>

Assuming someTestObj is a class and not a struct, the object is passed by reference, which means that both obj and someTestObj refer to the same object. E.g. changing name in one will change it in the other. However, unlike if you passed it using the ref keyword, setting obj = somethingElse will not change someTestObj.

The correct answer, is to use a class and put the value inside the class, this lets you pass by reference exactly as you desire.

class Thing:
  def __init__(self,a):
    self.a = a
def dosomething(ref)
  ref.a += 1

t = Thing(3)
dosomething(t)
print("T is now",t.a)

With regards to your first question, the array is passed by reference UNLESS it is modified within the method / function you're calling. If you attempt to modify the array within the method / function, a copy of it is made first, and then only the copy is modified. This makes it seem as if the array is passed by value when in actual fact it isn't.

For example, in this first case, even though you aren't defining your function to accept $my_array by reference (by using the & character in the parameter definition), it still gets passed by reference (ie: you don't waste memory with an unnecessary copy).

function handle_array($my_array) {  

    // ... read from but do not modify $my_array
    print_r($my_array);

    // ... $my_array effectively passed by reference since no copy is made
}

However if you modify the array, a copy of it is made first (which uses more memory but leaves your original array unaffected).

function handle_array($my_array) {

    // ... modify $my_array
    $my_array[] = "New value";

    // ... $my_array effectively passed by value since requires local copy
}

FYI - this is known as "lazy copy" or "copy-on-write".

You can do it for a const reference, but not for a non-const one. This is because C++ does not allow a temporary (the default value in this case) to be bound to non-const reference.

One way round this would be to use an actual instance as the default:

static int AVAL = 1;

void f( int & x = AVAL ) {
   // stuff
} 

int main() {
     f();       // equivalent to f(AVAL);
}

but this is of very limited practical use.

As a rule of thumb, value for non-class types and const reference for classes. If a class is really small it's probably better to pass by value, but the difference is minimal. What you really want to avoid is passing some gigantic class by value and having it all duplicated - this will make a huge difference if you're passing, say, a std::vector with quite a few elements in it.

I use final all the time on parameters.

Does it add that much? Not really.

Would I turn it off? No.

The reason: I found 3 bugs where people had written sloppy code and failed to set a member variable in accessors. All bugs proved difficult to find.

I'd like to see this made the default in a future version of Java. The pass by value/reference thing trips up an awful lot of junior programmers.

One more thing.. my methods tend to have a low number of parameters so the extra text on a method declaration isn't an issue.

My understanding is that this is actually very simple:

• Javascript is always pass by value, but when a variable refers to an object (including arrays), the "value" is a reference to the object.
• Changing the value of a variable never changes the underlying primitive or object, it just points the variable to a new primitive or object.
• However, changing a property of an object referenced by a variable does change the underlying object.

So, to work through some of your examples:

function f(a,b,c) {
    // Argument a is re-assigned to a new value.
    // The object or primitive referenced by the original a is unchanged.
    a = 3;
    // Calling b.push changes its properties - it adds
    // a new property b[b.length] with the value "foo".
    // So the object referenced by b has been changed.
    b.push("foo");
    // The "first" property of argument c has been changed.
    // So the object referenced by c has been changed (unless c is a primitive)
    c.first = false;
}

var x = 4;
var y = ["eeny", "miny", "mo"];
var z = {first: true};
f(x,y,z);
console.log(x, y, z.first); // 4, ["eeny", "miny", "mo", "foo"], false

Example 2:

var a = ["1", "2", {foo:"bar"}];
var b = a[1]; // b is now "2";
var c = a[2]; // c now references {foo:"bar"}
a[1] = "4";   // a is now ["1", "4", {foo:"bar"}]; b still has the value
              // it had at the time of assignment
a[2] = "5";   // a is now ["1", "4", "5"]; c still has the value
              // it had at the time of assignment, i.e. a reference to
              // the object {foo:"bar"}
console.log(b, c.foo); // "2" "bar"

ref mimics (or behaves) as a global area just for two scopes:

• Caller
• Callee.

Java passes primitive types by value and class types by reference

Now, people like to bicker endlessly about whether "pass by reference" is the correct way to describe what Java et al. actually do. The point is this:

1. Passing an object does not copy the object.
2. An object passed to a function can have its members modified by the function.
3. A primitive value passed to a function cannot be modified by the function. A copy is made.

In my book that's called passing by reference.

— Brian Bi - Which programming languages are pass by reference?

1. Pass By Value / Call By Value

   void printvalue(int x) 
   {
       x = x + 1 ;
       cout << x ;  // 6
   }

   int x = 5;
   printvalue(x);
   cout << x;    // 5

In call by value, when you pass a value to printvalue(x) i.e. the argument which is 5, it is copied to void printvalue(int x). Now, we have two different values 5 and the copied value 5 and these two values are stored in different memory locations. So if you make any change inside void printvalue(int x) it won't reflect back to the argument.

2. Pass By Reference/ Call By Reference

   void printvalue(int &x) 
   {
      x = x + 1 ;
      cout << x ; // 6
   }

   int x = 5;
   printvalue(x);
   cout << x;   // 6

In call by reference, there's only one difference. We use & i.e. the address operator. By doing
void printvalue(int &x) we are referring to the address of x which tells us that it both refers to the same location. Hence, any changes made inside the function will reflect outside.

Now that you're here, you should also know about ...

3. Pass By Pointer/ Call By Address

   void printvalue(int* x) 
   {
      *x = *x + 1 ;
      cout << *x ; // 6
   }

   int x = 5;
   printvalue(&x);
   cout << x;   // 6

In pass by address, the pointer int* x holds the address passed to it printvalue(&x). Hence, any changes done inside the function will reflect outside.

My understanding of the words "If the function modifies that value, the modifications appear also within the scope of the calling function for both passing by value and by reference" is that they are an error.

Modifications made in a called function are not in scope of the calling function when passing by value.

Either you have mistyped the quoted words or they have been extracted out of whatever context made what appears to be wrong, right.

Could you please ensure you have correctly quoted your source and if there are no errors there give more of the text surrounding that statement in the source material.

objects are passed by reference, primitives are passed by value.

String is not a primitive, it is an object, and it is a special case of object.

This is for memory-saving purpose. In JVM, there is a string pool. For every string created, JVM will try to see if the same string exist in the string pool, and point to it if there were already one.

public class TestString
{
    private static String a = "hello world";
    private static String b = "hello world";
    private static String c = "hello " + "world";
    private static String d = new String("hello world");

    private static Object o1 = new Object();
    private static Object o2 = new Object();

    public static void main(String[] args)
    {
        System.out.println("a==b:"+(a == b));
        System.out.println("a==c:"+(a == c));
        System.out.println("a==d:"+(a == d));
        System.out.println("a.equals(d):"+(a.equals(d)));
        System.out.println("o1==o2:"+(o1 == o2));

        passString(a);
        passString(d);
    }

    public static void passString(String s)
    {
        System.out.println("passString:"+(a == s));
    }
}

/* OUTPUT */

a==b:true
a==c:true
a==d:false
a.equals(d):true
o1==o2:false
passString:true
passString:false

the == is checking for memory address (reference), and the .equals is checking for contents (value)

You're passing a pointer(address location) by value.

It's like saying "here's the place with the data I want you to update."

Most of the answers here fail to address the inherent ambiguity in having a raw pointer in a function signature, in terms of expressing intent. The problems are the following:

• The caller does not know whether the pointer points to a single objects, or to the start of an "array" of objects.

• The caller does not know whether the pointer "owns" the memory it points to. IE, whether or not the function should free up the memory. (foo(new int) - Is this a memory leak?).

• The caller does not know whether or not nullptr can be safely passed into the function.

All of these problems are solved by references:

• References always refer to a single object.

• References never own the memory they refer to, they are merely a view into memory.

• References can't be null.

This makes references a much better candidate for general use. However, references aren't perfect - there are a couple of major problems to consider.

• No explicit indirection. This is not a problem with a raw pointer, as we have to use the & operator to show that we are indeed passing a pointer. For example, int a = 5; foo(a); It is not clear at all here that a is being passed by reference and could be modified.
• Nullability. This weakness of pointers can also be a strength, when we actually want our references to be nullable. Seeing as std::optional<T&> isn't valid (for good reasons), pointers give us that nullability you want.

So it seems that when we want a nullable reference with explicit indirection, we should reach for a T* right? Wrong!

Abstractions

In our desperation for nullability, we may reach for T*, and simply ignore all of the shortcomings and semantic ambiguity listed earlier. Instead, we should reach for what C++ does best: an abstraction. If we simply write a class that wraps around a pointer, we gain the expressiveness, as well as the nullability and explicit indirection.

template <typename T>
struct optional_ref {
  optional_ref() : ptr(nullptr) {}
  optional_ref(T* t) : ptr(t) {}
  optional_ref(std::nullptr_t) : ptr(nullptr) {}

  T& get() const {
    return *ptr;
  }

  explicit operator bool() const {
    return bool(ptr);
  }

private:
  T* ptr;
};

This is the most simple interface I could come up with, but it does the job effectively. It allows for initializing the reference, checking whether a value exists and accessing the value. We can use it like so:

void foo(optional_ref<int> x) {
  if (x) {
    auto y = x.get();
    // use y here
  }
}

int x = 5;
foo(&x); // explicit indirection here
foo(nullptr); // nullability

We have acheived our goals! Let's now see the benefits, in comparison to the raw pointer.

• The interface shows clearly that the reference should only refer to one object.
• Clearly it does not own the memory it refers to, as it has no user defined destructor and no method to delete the memory.
• The caller knows nullptr can be passed in, since the function author explicitly is asking for an optional_ref

We could make the interface more complex from here, such as adding equality operators, a monadic get_or and map interface, a method that gets the value or throws an exception, constexpr support. That can be done by you.

In conclusion, instead of using raw pointers, reason about what those pointers actually mean in your code, and either leverage a standard library abstraction or write your own. This will improve your code significantly.

Try this:--

1.object_id
#=> 3

2.object_id
#=> 5

a = 1
#=> 1
a.object_id
#=> 3

b = 2
#=> 2
b.object_id
#=> 5

identifier a contains object_id 3 for value object 1 and identifier b contains object_id 5 for value object 2.

Now do this:--

a.object_id = 5
#=> error

a = b
#value(object_id) at b copies itself as value(object_id) at a. value object 2 has object_id 5
#=> 2

a.object_id 
#=> 5

Now, a and b both contain same object_id 5 which refers to value object 2. So, Ruby variable contains object_ids to refer to value objects.

Doing following also gives error:--

c
#=> error

but doing this won't give error:--

5.object_id
#=> 11

c = 5
#=> value object 5 provides return type for variable c and saves 5.object_id i.e. 11 at c
#=> 5
c.object_id
#=> 11 

a = c.object_id
#=> object_id of c as a value object changes value at a
#=> 11
11.object_id
#=> 23
a.object_id == 11.object_id
#=> true

a
#=> Value at a
#=> 11

Here identifier a returns value object 11 whose object id is 23 i.e. object_id 23 is at identifier a, Now we see an example by using method.

def foo(arg)
  p arg
  p arg.object_id
end
#=> nil
11.object_id
#=> 23
x = 11
#=> 11
x.object_id
#=> 23
foo(x)
#=> 11
#=> 23

arg in foo is assigned with return value of x. It clearly shows that argument is passed by value 11, and value 11 being itself an object has unique object id 23.

Now see this also:--

def foo(arg)
  p arg
  p arg.object_id
  arg = 12
  p arg
  p arg.object_id
end

#=> nil
11.object_id
#=> 23
x = 11
#=> 11
x.object_id
#=> 23
foo(x)
#=> 11
#=> 23
#=> 12
#=> 25
x
#=> 11
x.object_id
#=> 23

Here, identifier arg first contains object_id 23 to refer 11 and after internal assignment with value object 12, it contains object_id 25. But it does not change value referenced by identifier x used in calling method.

Hence, Ruby is pass by value and Ruby variables do not contain values but do contain reference to value object.

The Integer is immutable. You can wrap int in your custom wrapper class.

class WrapInt{
    int value;
}

WrapInt theInt = new WrapInt();

inc(theInt);
System.out.println("main: "+theInt.value);

Use the ref keyword.

Look at the definitive reference here to understand passing parameters.
To be specific, look at this, to understand the behavior of the code.

EDIT: Sort works on the same reference (that is passed by value) and hence the values are ordered. However, assigning a new instance to the parameter won't work because parameter is passed by value, unless you put ref.

Putting ref lets you change the pointer to the reference to a new instance of List in your case. Without ref, you can work on the existing parameter, but can't make it point to something else.

The C language does not support pass by reference of any type. The closest equivalent is to pass a pointer to the type.

Here is a contrived example in both languages

C++ style API

void UpdateValue(int& i) {
  i = 42;
}

Closest C equivalent

void UpdateValue(int *i) {
  *i = 42;
}

The following are the ways to pass a arguments/parameters to function in C++.

1. by value.

// passing parameters by value . . .

void foo(int x) 
{
    x = 6;  
}

2. by reference.

// passing parameters by reference . . .

void foo(const int &x) // x is a const reference
{
    x = 6;  
}

// passing parameters by const reference . . .

void foo(const int &x) // x is a const reference
{
    x = 6;  // compile error: a const reference cannot have its value changed!
}

3. by object.

class abc
{
    display()
    {
        cout<<"Class abc";
    }
}


// pass object by value
void show(abc S)
{
    cout<<S.display();
}

// pass object by reference
void show(abc& S)
{
    cout<<S.display();
}

While pass by reference is nothing that fits well into python and should be rarely used there are some workarounds that actually can work to get the object currently assigned to a local variable or even reassign a local variable from inside of a called function.

The basic idea is to have a function that can do that access and can be passed as object into other functions or stored in a class.

One way is to use global (for global variables) or nonlocal (for local variables in a function) in a wrapper function.

def change(wrapper):
    wrapper(7)

x = 5
def setter(val):
    global x
    x = val
print(x)

The same idea works for reading and deleting a variable.

For just reading there is even a shorter way of just using lambda: x which returns a callable that when called returns the current value of x. This is somewhat like "call by name" used in languages in the distant past.

Passing 3 wrappers to access a variable is a bit unwieldy so those can be wrapped into a class that has a proxy attribute:

class ByRef:
    def __init__(self, r, w, d):
        self._read = r
        self._write = w
        self._delete = d
    def set(self, val):
        self._write(val)
    def get(self):
        return self._read()
    def remove(self):
        self._delete()
    wrapped = property(get, set, remove)

# left as an exercise for the reader: define set, get, remove as local functions using global / nonlocal
r = ByRef(get, set, remove)
r.wrapped = 15

Pythons "reflection" support makes it possible to get a object that is capable of reassigning a name/variable in a given scope without defining functions explicitly in that scope:

class ByRef:
    def __init__(self, locs, name):
        self._locs = locs
        self._name = name
    def set(self, val):
        self._locs[self._name] = val
    def get(self):
        return self._locs[self._name]
    def remove(self):
        del self._locs[self._name]
    wrapped = property(get, set, remove)

def change(x):
    x.wrapped = 7

def test_me():
    x = 6
    print(x)
    change(ByRef(locals(), "x"))
    print(x)

Here the ByRef class wraps a dictionary access. So attribute access to wrapped is translated to a item access in the passed dictionary. By passing the result of the builtin locals and the name of a local variable this ends up accessing a local variable. The python documentation as of 3.5 advises that changing the dictionary might not work but it seems to work for me.

Only call time pass-by-reference is removed. So change:

call_user_func($func, &$this, &$client ...

To this:

call_user_func($func, $this, $client ...

&$this should never be needed after PHP4 anyway period.

If you absolutely need $client to be passed by reference, update the function ($func) signature instead (function func(&$client) {)

My two cents.... It's irrelevant whether JavaScript passes parameters by reference or value. What really matters is assignment vs. mutation.

I wrote a longer, more detailed explanation in this link.

When you pass anything (whether that be an object or a primitive), all JavaScript does is assign a new variable while inside the function... just like using the equal sign (=).

How that parameter behaves inside the function is exactly the same as it would behave if you just assigned a new variable using the equal sign... Take these simple examples.

var myString = 'Test string 1';

// Assignment - A link to the same place as myString
var sameString = myString;

// If I change sameString, it will not modify myString,
// it just re-assigns it to a whole new string
sameString = 'New string';

console.log(myString); // Logs 'Test string 1';
console.log(sameString); // Logs 'New string';

If I were to pass myString as a parameter to a function, it behaves as if I simply assigned it to a new variable. Now, let's do the same thing, but with a function instead of a simple assignment

function myFunc(sameString) {

  // Reassignment... Again, it will not modify myString
  sameString = 'New string';
}

var myString = 'Test string 1';

// This behaves the same as if we said sameString = myString
myFunc(myString);

console.log(myString); // Again, logs 'Test string 1';

The only reason that you can modify objects when you pass them to a function is because you are not reassigning... Instead, objects can be changed or mutated.... Again, it works the same way.

var myObject = { name: 'Joe'; }

// Assignment - We simply link to the same object
var sameObject = myObject;

// This time, we can mutate it. So a change to myObject affects sameObject and visa versa
myObject.name = 'Jack';
console.log(sameObject.name); // Logs 'Jack'

sameObject.name = 'Jill';
console.log(myObject.name); // Logs 'Jill'

// If we re-assign it, the link is lost
sameObject = { name: 'Howard' };
console.log(myObject.name); // Logs 'Jill'

If I were to pass myObject as a parameter to a function, it behaves as if I simply assigned it to a new variable. Again, the same thing with the exact same behavior but with a function.

function myFunc(sameObject) {
  // We mutate the object, so the myObject gets the change too... just like before.
  sameObject.name = 'Jill';

  // But, if we re-assign it, the link is lost
  sameObject = {
    name: 'Howard'
  };
}

var myObject = {
  name: 'Joe'
};

// This behaves the same as if we said sameObject = myObject;
myFunc(myObject);
console.log(myObject.name); // Logs 'Jill'

Every time you pass a variable to a function, you are "assigning" to whatever the name of the parameter is, just like if you used the equal = sign.

Always remember that the equals sign = means assignment. And passing a parameter to a function also means assignment. They are the same and the two variables are connected in exactly the same way.

The only time that modifying a variable affects a different variable is when the underlying object is mutated.

There is no point in making a distinction between objects and primitives, because it works the same exact way as if you didn't have a function and just used the equal sign to assign to a new variable.

Sending an HTTP POST request using file_get_contents is not that hard, actually : as you guessed, you have to use the $context parameter.

There's an example given in the PHP manual, at this page : HTTP context options (quoting) :

$postdata = http_build_query(
    array(
        'var1' => 'some content',
        'var2' => 'doh'
    )
);

$opts = array('http' =>
    array(
        'method'  => 'POST',
        'header'  => 'Content-Type: application/x-www-form-urlencoded',
        'content' => $postdata
    )
);

$context  = stream_context_create($opts);

$result = file_get_contents('http://example.com/submit.php', false, $context);

Basically, you have to create a stream, with the right options (there is a full list on that page), and use it as the third parameter to file_get_contents -- nothing more ;-)

As a sidenote : generally speaking, to send HTTP POST requests, we tend to use curl, which provides a lot of options an all -- but streams are one of the nice things of PHP that nobody knows about... too bad...

You can use the -f operator

$a = "{0:D}" -f (get-date)
$a = "{0:dddd}" -f (get-date)

Spécificator    Type                                Example (with [datetime]::now)
d   Short date                                        26/09/2002
D   Long date                                       jeudi 26 septembre 2002
t   Short Hour                                      16:49
T   Long Hour                                       16:49:31
f   Date and hour                                   jeudi 26 septembre 2002 16:50
F   Long Date and hour                              jeudi 26 septembre 2002 16:50:51
g   Default Date                                    26/09/2002 16:52
G   Long default Date and hour                      26/09/2009 16:52:12
M   Month Symbol                                    26 septembre
r   Date string RFC1123                             Sat, 26 Sep 2009 16:54:50 GMT
s   Sortable string date                            2009-09-26T16:55:58
u   Sortable string date universal local hour       2009-09-26 16:56:49Z
U   Sortable string date universal GMT hour         samedi 26 septembre 2009 14:57:22 (oups)
Y   Year symbol                                     septembre 2002

Spécificator    Type                       Example      Output Example
dd              Jour                       {0:dd}       10
ddd             Name of the day            {0:ddd}      Jeu.
dddd            Complet name of the day    {0:dddd}     Jeudi
f, ff, …        Fractions of seconds       {0:fff}      932
gg, …           position                   {0:gg}       ap. J.-C.
hh              Hour two digits            {0:hh}       10
HH              Hour two digits (24 hours) {0:HH}       22
mm              Minuts 00-59               {0:mm}       38
MM              Month 01-12                {0:MM}       12
MMM             Month shortcut             {0:MMM}      Sep.
MMMM            complet name of the month  {0:MMMM}     Septembre
ss              Seconds 00-59              {0:ss}       46
tt              AM or PM                   {0:tt}       ““
yy              Years, 2 digits            {0:yy}       02
yyyy            Years                      {0:yyyy}     2002
zz              Time zone, 2 digits        {0:zz}       +02
zzz             Complete Time zone         {0:zzz}      +02:00
:               Separator                  {0:hh:mm:ss}     10:43:20
/               Separator                  {0:dd/MM/yyyy}   10/12/2002

Here is how you define a react onClick event handler, which was answering the question title... using es6 syntax

import React, { Component } from 'react';

export default class Test extends Component {
  handleClick(e) {
    e.preventDefault()
    console.log(e.target)
  }

  render() {
    return (
      <a href='#' onClick={e => this.handleClick(e)}>click me</a>
    )
  }
}

Well, I would do it like this:

select datediff(minute,'1990-1-1',datetime)

where '1990-1-1' is an arbitrary base datetime.

If you have a button in asp.net design page like "Default.asp" and you want to create CSS file and specified attributes for a button,labels or other controller. Then first of all create a css page

1. Right click on Project
2. Add new item
3. Select StyleSheet

now you have a css page now write these code in your css page(StyleSheet.css)

StyleSheet.css

.mybtnstyle
{
 border:1px solid Red;
 background-color:Red;
 border-style:groove;
 border-top:5px;
 outline-style:dotted;
}

Default.asp

{

  <head> 
  <title> testing.com </title>
 </head>
<body>
 <b>Using Razer<b/>
<form id="form1" runat="server">
 <link id="Link1" rel="stylesheet" runat="server" media="screen" href="Stylesheet1.css" />
 <asp:Button ID="mybtn" class="mybtn" runat="server" Width="339px"/>
 </form>
 </body>
</html>

}

Use an onsubmit attribute on the form tag rather than onclick on the submit.

You should put your processing into the class constructor or an OnInit hook method.

Can you try this,

 $ch = curl_init($url);
 ...
 curl_setopt($ch, CURLOPT_USERPWD, $username . ":" . $password);  
 ...

REF: http://php.net/manual/en/function.curl-setopt.php

It should be something like:

class Person:
   def setavalue(self, name):         
      self.myname = name      
   def printaname(self):         
      print "Name", self.myname           

def main():
   p = Person()
   p.setavalue("harry")
   p.printaname()  

if you load up the XMLDoc I'm pretty sure the .ToString() function posses an overload for this.

But is this for debugging? The reason that it is sent like that is to take up less space (i.e stripping unneccessary whitespace from the XML).

Derived from Dan Moulding's POSIX answer, this should work :

#include <time.h>
#include <math.h>

long millis(){
    struct timespec _t;
    clock_gettime(CLOCK_REALTIME, &_t);
    return _t.tv_sec*1000 + lround(_t.tv_nsec/1.0e6);
}

Also as pointed out by David Guyon: compile with -lm

Use this command to create debug.keystore

keytool -genkey -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android -keyalg RSA -keysize 2048 -validity 10000 -dname "CN=Android Debug,O=Android,C=US"

Its simple.. add this dependency in your project and create a button with 1. Any shape 2. Any color 3. Any border 4. With material effects

https://github.com/manojbhadane/QButton

<com.manojbhadane.QButton
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:text="OK"
       app:qb_backgroundColor="@color/green"
       app:qb_radius="100"
       app:qb_strokeColor="@color/darkGreen"
       app:qb_strokeWidth="5" />

Look here http://docs.oracle.com/javase/6/docs/api/java/awt/Font.html#deriveFont%28float%29

JComponent has a setFont() method. You will control the font there, not on the String.

Such as

JButton b = new JButton();
b.setFont(b.getFont().deriveFont(18.0f));

Assign the result of explode to a variable and pass that variable to end:

$tmp = explode('.', $file_name);
$file_extension = end($tmp);

The problem is, that end requires a reference, because it modifies the internal representation of the array (i.e. it makes the current element pointer point to the last element).

The result of explode('.', $file_name) cannot be turned into a reference. This is a restriction in the PHP language, that probably exists for simplicity reasons.

Simple example based off of @Tuan Zaidi's example above which seemed the easiest. Didn't know you can do the filter on the outside of OPENQUERY... so much easier!

However in my case I needed to stuff it in a variable so I created an additional Sub Query Level to return a single value.

SET @SFID = (SELECT T.Id FROM (SELECT Id,  Contact_ID_SQL__c  FROM OPENQUERY([TR-SF-PROD], 'SELECT Id,  Contact_ID_SQL__c FROM Contact') WHERE Contact_ID_SQL__c = @ContactID) T)

In general, you can use the built-in credential storage facilities:

git config --global credential.helper store

Or, if you're on Windows, you can use their credential system:

git config --global credential.helper wincred

Or, if you're on MacOS, you can use their credential system:

git config --global credential.helper osxkeychain

The first solution is optimal in most situations.

It can be changed in the $CATALINA_BASE/conf/server.xml in the <Host />. See the Tomcat documentation, specifically the section in regards to the Host container:

Tomcat 6 Configuration

Tomcat 7 Configuration

The default is webapps relative to the $CATALINA_BASE. An absolute pathname can be used.

Hope that helps.

Answering the additional question:

my following test code for typeid does not output the correct type name. what's wrong?

There isn't anything wrong. What you see is the string representation of the type name. The standard C++ doesn't force compilers to emit the exact name of the class, it is just up to the implementer(compiler vendor) to decide what is suitable. In short, the names are up to the compiler.

These are two different tools. typeof returns the type of an expression, but it is not standard. In C++0x there is something called decltype which does the same job AFAIK.

decltype(0xdeedbeef) number = 0; // number is of type int!
decltype(someArray[0]) element = someArray[0];

Whereas typeid is used with polymorphic types. For example, lets say that cat derives animal:

animal* a = new cat; // animal has to have at least one virtual function
...
if( typeid(*a) == typeid(cat) )
{
    // the object is of type cat! but the pointer is base pointer.
}

According to the Sun Java Specification, it's called the Conditional Operator. See section 15.25. You're right as to what it does.

The conditional operator ? : uses the boolean value of one expression to decide which of two other expressions should be evaluated.

The conditional operator is syntactically right-associative (it groups right-to-left), so that a?b:c?d:e?f:g means the same as a?b:(c?d:(e?f:g)).

ConditionalExpression:
        ConditionalOrExpression
        ConditionalOrExpression ? Expression : ConditionalExpression

The conditional operator has three operand expressions; ? appears between the first and second expressions, and : appears between the second and third expressions.

The first expression must be of type boolean or Boolean, or a compile-time error occurs.

Sweet and simple definitions, but fitting the need: Statically typed languages binds the type to a variable for its entire scope (Seg: SCALA) Dynamically typed languages bind the type to the actual value referenced by a variable.

Other type of format :

$headers[] = 'Accept: application/json';
$headers[] = 'Content-Type: application/json';
$headers[] = 'Content-length: 0';

curl_setopt($curlHandle, CURLOPT_HTTPHEADER, $headers);

I found this to drop all tables in a database:

mysqldump -uUSERNAME -pPASSWORD --add-drop-table --no-data DATABASENAME | grep ^DROP | mysql -uUSERNAME -pPASSWORD DATABASENAME

Usefull if you are limited by hosting solution (not able to drop a whole database).

I modified it to truncate the tables. There is no "--add-truncate-table" for mysqldump, so i did:

mysqldump -uUSERNAME -pPASSWORD --add-drop-table --no-data DATABASENAME | grep ^DROP | sed -e 's/DROP TABLE IF EXISTS/TRUNCATE TABLE/g' | mysql -uUSERNAME -pPASSWORD DATABASENAME

works for me --edit, fixing a typo in the last command

You can use this below.

rename --no-act 's/\.html$/\.php/' *.html */*.html

Another solution is to add xdebug.max_nesting_level = 200 in your php.ini

J2ME Map Route Provider

maps.google.com has a navigation service which can provide you route information in KML format.

To get kml file we need to form url with start and destination locations:

public static String getUrl(double fromLat, double fromLon,
                            double toLat, double toLon) {// connect to map web service
    StringBuffer urlString = new StringBuffer();
    urlString.append("http://maps.google.com/maps?f=d&hl=en");
    urlString.append("&saddr=");// from
    urlString.append(Double.toString(fromLat));
    urlString.append(",");
    urlString.append(Double.toString(fromLon));
    urlString.append("&daddr=");// to
    urlString.append(Double.toString(toLat));
    urlString.append(",");
    urlString.append(Double.toString(toLon));
    urlString.append("&ie=UTF8&0&om=0&output=kml");
    return urlString.toString();
}

Next you will need to parse xml (implemented with SAXParser) and fill data structures:

public class Point {
    String mName;
    String mDescription;
    String mIconUrl;
    double mLatitude;
    double mLongitude;
}

public class Road {
    public String mName;
    public String mDescription;
    public int mColor;
    public int mWidth;
    public double[][] mRoute = new double[][] {};
    public Point[] mPoints = new Point[] {};
}

Network connection is implemented in different ways on Android and Blackberry, so you will have to first form url:

 public static String getUrl(double fromLat, double fromLon,
     double toLat, double toLon)

then create connection with this url and get InputStream.
Then pass this InputStream and get parsed data structure:

 public static Road getRoute(InputStream is) 

Full source code RoadProvider.java

BlackBerry

class MapPathScreen extends MainScreen {
    MapControl map;
    Road mRoad = new Road();
    public MapPathScreen() {
        double fromLat = 49.85, fromLon = 24.016667;
        double toLat = 50.45, toLon = 30.523333;
        String url = RoadProvider.getUrl(fromLat, fromLon, toLat, toLon);
        InputStream is = getConnection(url);
        mRoad = RoadProvider.getRoute(is);
        map = new MapControl();
        add(new LabelField(mRoad.mName));
        add(new LabelField(mRoad.mDescription));
        add(map);
    }
    protected void onUiEngineAttached(boolean attached) {
        super.onUiEngineAttached(attached);
        if (attached) {
            map.drawPath(mRoad);
        }
    }
    private InputStream getConnection(String url) {
        HttpConnection urlConnection = null;
        InputStream is = null;
        try {
            urlConnection = (HttpConnection) Connector.open(url);
            urlConnection.setRequestMethod("GET");
            is = urlConnection.openInputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return is;
    }
}

See full code on J2MEMapRouteBlackBerryEx on Google Code

Android

public class MapRouteActivity extends MapActivity {
    LinearLayout linearLayout;
    MapView mapView;
    private Road mRoad;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mapView = (MapView) findViewById(R.id.mapview);
        mapView.setBuiltInZoomControls(true);
        new Thread() {
            @Override
            public void run() {
                double fromLat = 49.85, fromLon = 24.016667;
                double toLat = 50.45, toLon = 30.523333;
                String url = RoadProvider
                        .getUrl(fromLat, fromLon, toLat, toLon);
                InputStream is = getConnection(url);
                mRoad = RoadProvider.getRoute(is);
                mHandler.sendEmptyMessage(0);
            }
        }.start();
    }

    Handler mHandler = new Handler() {
        public void handleMessage(android.os.Message msg) {
            TextView textView = (TextView) findViewById(R.id.description);
            textView.setText(mRoad.mName + " " + mRoad.mDescription);
            MapOverlay mapOverlay = new MapOverlay(mRoad, mapView);
            List<Overlay> listOfOverlays = mapView.getOverlays();
            listOfOverlays.clear();
            listOfOverlays.add(mapOverlay);
            mapView.invalidate();
        };
    };

    private InputStream getConnection(String url) {
        InputStream is = null;
        try {
            URLConnection conn = new URL(url).openConnection();
            is = conn.getInputStream();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return is;
    }
    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }
}

See full code on J2MEMapRouteAndroidEx on Google Code

I hate the PostBuild step, it allows for too much stuff to happen outside of the build tool's purview. I believe that its better to let MSBuild manage the copy process, and do the updating. You can edit the .csproj file like this:

  <Target Name="AfterBuild" Inputs="$(TargetPath)\**">
    <Copy SourceFiles="$(TargetPath)\**" DestinationFiles="$(SolutionDir)Prism4Demo.Shell\$(OutDir)Modules\**" OverwriteReadOnlyFiles="true"></Copy>
  </Target>

TL;DR answer

For most combinations of architecture, compiler and language, < will not be faster than <=.

Full answer

Other answers have concentrated on x86 architecture, and I don't know the ARM architecture (which your example assembler seems to be) well enough to comment specifically on the code generated, but this is an example of a micro-optimisation which is very architecture specific, and is as likely to be an anti-optimisation as it is to be an optimisation.

As such, I would suggest that this sort of micro-optimisation is an example of cargo cult programming rather than best software engineering practice.

Counterexample

There are probably some architectures where this is an optimisation, but I know of at least one architecture where the opposite may be true. The venerable Transputer architecture only had machine code instructions for equal to and greater than or equal to, so all comparisons had to be built from these primitives.

Even then, in almost all cases, the compiler could order the evaluation instructions in such a way that in practice, no comparison had any advantage over any other. Worst case though, it might need to add a reverse instruction (REV) to swap the top two items on the operand stack. This was a single byte instruction which took a single cycle to run, so had the smallest overhead possible.

Summary

Whether or not a micro-optimisation like this is an optimisation or an anti-optimisation depends on the specific architecture you are using, so it is usually a bad idea to get into the habit of using architecture specific micro-optimisations, otherwise you might instinctively use one when it is inappropriate to do so, and it looks like this is exactly what the book you are reading is advocating.

You could do this:

String json = new ObjectMapper().writeValueAsString(yourObjectHere);

OpenCV Specific

Opencv supports filesystem, probably through its dependency Boost.

#include <opencv2/core/utils/filesystem.hpp>
cv::utils::fs::createDirectory(outputDir);

Using Node.js

sync mode:

var fs = require("fs");
var text = fs.readFileSync("./mytext.txt");
var textByLine = text.split("\n")

async mode:

var fs = require("fs");
fs.readFile("./mytext.txt", function(text){
    var textByLine = text.split("\n")
});

UPDATE

As of at least Node 6, readFileSync returns a Buffer, so it must first be converted to a string in order for split to work:

var text = fs.readFileSync("./mytext.txt").toString('utf-8');

Or

var text = fs.readFileSync("./mytext.txt", "utf-8");

The best way is to use your code and then store the image in OG tags in the page you are linking to, then Facebook will pick them up.

<meta property="og:title" content="Facebook Open Graph Demo">
<meta property="og:image" content="http://example.com/main-image.png">
<meta property="og:site_name" content="Example Website">
<meta property="og:description" content="Here is a nice description">

You can find documentation to OG tags and how to use them with share buttons here

HTML

<div id='hideme'><strong>Warning:</strong>These are new products<a href='#' class='close_notification' title='Click to Close'><img src="images/close_icon.gif" width="6" height="6" alt="Close" onClick="hide('hideme')" /></a

Javascript:

function hide(obj) {

    var el = document.getElementById(obj);

        el.style.display = 'none';

}

Per MSDN it is

By default, the maximum size of an Array is 2 gigabytes (GB).

In a 64-bit environment, you can avoid the size restriction by setting the enabled attribute of the gcAllowVeryLargeObjects configuration element to true in the run-time environment.

However, the array will still be limited to a total of 4 billion elements.

Refer Here http://msdn.microsoft.com/en-us/library/System.Array(v=vs.110).aspx

Note: Here I am focusing on the actual length of array by assuming that we will have enough hardware RAM.

Have you looked at Fiddler 2 from Microsoft?

http://www.fiddler2.com/fiddler2/

Allows you to generate most types of request for testing, including POST. It also supports capturing HTTP requests made by other applications and reusing those for testing.

I would say the biggest difference between orElse and orElseGet comes when we want to evaluate something to get the new value in the else condition.

Consider this simple example -

// oldValue is String type field that can be NULL
String value;
if (oldValue != null) {
    value = oldValue;
} else {
    value = apicall().value;
}

Now let's transform the above example to using Optional along with orElse,

// oldValue is Optional type field
String value = oldValue.orElse(apicall().value);

Now let's transform the above example to using Optional along with orElseGet,

// oldValue is Optional type field
String value = oldValue.orElseGet(() -> apicall().value);

When orElse is invoked, the apicall().value is evaluated and passed to the method. Whereas, in the case of orElseGet the evaluation only happens if the oldValue is empty. orElseGet allows lazy evaluation.

Another alternative, which is also quite popular is the Java Service Wrapper. This is also quite popular around the OSS community.

You can also try Notification API. Here's an example:

function message(msg){
    if (window.webkitNotifications) {
        if (window.webkitNotifications.checkPermission() == 0) {
        notification = window.webkitNotifications.createNotification(
          'picture.png', 'Title', msg);
                    notification.onshow = function() { // when message shows up
                        setTimeout(function() {
                            notification.close();
                        }, 1000); // close message after one second...
                    };
        notification.show();
      } else {
        window.webkitNotifications.requestPermission(); // ask for permissions
      }
    }
    else {
        alert(msg);// fallback for people who does not have notification API; show alert box instead
    }
    }

To use this, simply write:

message("hello");

Instead of:

alert("hello");

Note: Keep in mind that it's only currently supported in Chrome, Safari, Firefox and some mobile web browsers (jan. 2014)

Find supported browsers here.

You can use

df <- read.csv("filename.csv", header=TRUE)

# To loop each column
for (i in 1:ncol(df))
    {
    dosomething(df[,i])
    }
# To loop each row
for (i in 1:nrow(df))
    {
    dosomething(df[i,])
    }

Also, you may want to have a look to the apply function (type ?apply or help(apply))if you want to use the same function on each row/column

If you have a pandas serie with NaN, and want to remove it (without loosing index):

serie = serie.dropna()

# create data for example
data = np.array(['g', 'e', 'e', 'k', 's']) 
ser = pd.Series(data)
ser.replace('e', np.NAN)
print(ser)

0      g
1    NaN
2    NaN
3      k
4      s
dtype: object

# the code
ser = ser.dropna()
print(ser)

0    g
3    k
4    s
dtype: object

Which API target do you have within your project?AndroidHttpClientis only for API Level 8 <. and please have a look on here

enjoy your code:)

Actually the correct answer to this is to just add the schema to your document, like so

<packages xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">

...and you're done :)

If the XSD is not already cached and unavailable, you can add it as follows from the NuGet console

Install-Package NuGet.Manifest.Schema -Version 2.0.0

Once this is done, as noted in a comment below, you may want to move it from your current folder to the official schema folder that is found in

%VisualStudioPath%\Xml\Schemas

Easiest method to decompile an android app is to download an app named ShowJava from playstore . Just select the application that needs to be decompiled from the list of applications. There are three different decompiler you can use to decompile an app namely -

CFR 0.110, JaDX 0.6.1 or FernFlower (analytical decompiler) .

A simple solution is to restart the service when the system stops it.

I found this very simple implementation of this method:

How to make android service unstoppable

Since you've got both the shell that you're typing into and the shell that sudo -s runs, you need to quote or escape twice. (EDITED fixed quoting)

sudo -su db2inst1 '/opt/ibm/db2/V9.7/bin/db2 force application \(1995\)'

or

sudo -su db2inst1 /opt/ibm/db2/V9.7/bin/db2 force application \\\(1995\\\)

Out of curiosity, why do you need -s? Can't you just do this:

sudo -u db2inst1 /opt/ibm/db2/V9.7/bin/db2 force application \(1995\)

I struggled with this problem for a long time. By far the easiest solution is to not worry about the ^M characters and just use a visual diff tool that can handle them.

Instead of typing:

git diff <commitHash> <filename>

try:

git difftool <commitHash> <filename>

If you use the excellent WebStorm editor, you can compare with any branch you'd like:

Post the string with raw JSON, and do not forget the double quotation marks!

Pipe the result to wc using the -l (line count) switch:

grep -Rl "curl" ./ | wc -l

Use a list comprehension:

results = [int(i) for i in results]

e.g.

>>> results = ["1", "2", "3"]
>>> results = [int(i) for i in results]
>>> results
[1, 2, 3]

Add the folders which you don't want to trigger servlet processing to the <static-files> section of your appengine-web.xml file.

I just did this and looks like things are starting to work ok. Here's my structure:

/

/pages/<.jsp files>

/css

I added "/pages/**" and "/css/**" to the <static-files> section and I can now forward to a .jsp file from inside a servlet doGet without causing an infinite loop.

There's very powerful new package from genius data scientists at Win-Vector (folks that made vtreat, seplyr and replyr) called cdata. It implements "coordinated data" principles described in this document and also in this blog post. The idea is that regardless how you organize your data, it should be possible to identify individual data points using a system of "data coordinates". Here's a excerpt from the recent blog post by John Mount:

The whole system is based on two primitives or operators cdata::moveValuesToRowsD() and cdata::moveValuesToColumnsD(). These operators have pivot, un-pivot, one-hot encode, transpose, moving multiple rows and columns, and many other transforms as simple special cases.

It is easy to write many different operations in terms of the cdata primitives. These operators can work-in memory or at big data scale (with databases and Apache Spark; for big data use the cdata::moveValuesToRowsN() and cdata::moveValuesToColumnsN() variants). The transforms are controlled by a control table that itself is a diagram of (or picture of) the transform.

We will first build the control table (see blog post for details) and then perform the move of data from rows to columns.

library(cdata)
# first build the control table
pivotControlTable <- buildPivotControlTableD(table = dat1, # reference to dataset
                        columnToTakeKeysFrom = 'numbers', # this will become column headers
                        columnToTakeValuesFrom = 'value', # this contains data
                        sep="_")                          # optional for making column names

# perform the move of data to columns
dat_wide <- moveValuesToColumnsD(tallTable =  dat1, # reference to dataset
                    keyColumns = c('name'),         # this(these) column(s) should stay untouched 
                    controlTable = pivotControlTable# control table above
                    ) 
dat_wide

#>         name  numbers_1  numbers_2  numbers_3  numbers_4
#> 1  firstName  0.3407997 -0.7033403 -0.3795377 -0.7460474
#> 2 secondName -0.8981073 -0.3347941 -0.5013782 -0.1745357

Yes, you can set cookie in the AJAX request in the server-side code just as you'd do for a normal request since the server cannot differentiate between a normal request or an AJAX request.

AJAX requests are just a special way of requesting to server, the server will need to respond back as in any HTTP request. In the response of the request you can add cookies.

system() executes a shell which is then responsible for parsing the arguments and executing the desired program. To execute the program directly, use fork() and exec() (which is what system() uses to execute the shell as well as what the shell itself uses to execute commands).

#include <unistd.h>

int main() {
     if (fork() == 0) {
          /*
           * fork() returns 0 to the child process
           * and the child's PID to the parent.
           */
          execl("/path/to/foo", "foo", "arg1", "arg2", "arg3", 0);
          /*
           * We woundn't still be here if execl() was successful,
           * so a non-zero exit value is appropriate.
           */
          return 1;
     }

     return 0;
}

I don't know if this still is an issue, but i prefere just to use the My.Settings in my code.

Visual Studio generates a simple class with functions for reading settings from the app.config file.

You can simply access it using My.Settings.ConnectionString.

    Using Context As New Data.Context.DataClasses()
        Context.Connection.ConnectionString = My.Settings.ConnectionString
    End Using

We have tables in SQL Server 2005 and 2008 with over 1 Billion rows in it (30 million added daily). I can't imagine going down the rats nest of splitting that out into a new table each day.

Much cheaper to add the appropriate disk space (which you need anyway) and RAM.

I recommended using the size function.

class Customer < ActiveRecord::Base
  has_many :customer_activities
end

class CustomerActivity < ActiveRecord::Base
  belongs_to :customer, counter_cache: true
end

Consider these two models. The customer has many customer activities.

If you use a :counter_cache on a has_many association, size will use the cached count directly, and not make an extra query at all.

Consider one example: in my database, one customer has 20,000 customer activities and I try to count the number of records of customer activities of that customer with each of count, length and size method. here below the benchmark report of all these methods.

            user     system      total        real
Count:     0.000000   0.000000   0.000000 (  0.006105)
Size:      0.010000   0.000000   0.010000 (  0.003797)
Length:    0.030000   0.000000   0.030000 (  0.026481)

so I found that using :counter_cache Size is the best option to calculate the number of records.

Use ViewStub and specify the layout of the view you want to toggle. To view:

mViewStub.setVisibility(View.VISIBLE) or mViewStub.inflate();

To disappear:

mViewStub.setVisibility(View.GONE);

Run it every three days...

0 0 */3 * *

How about that?

If you want it to run on specific days of the month, like the 1st, 4th, 7th, etc... then you can just have a conditional in your script that checks for the current day of the month.

if (((date('j') - 1) % 3))
   exit();

or, as @mario points out, you can use date('k') to get the day of the year instead of doing it based on the day of the month.

To declare a type variable property, mark the declaration with the static declaration modifier. Classes may mark type computed properties with the class declaration modifier instead to allow subclasses to override the superclass’s implementation. Type properties are discussed in Type Properties.

NOTE
In a class declaration, the keyword static has the same effect as marking the declaration with both the class and final declaration modifiers.

Source: The Swift Programming Language - Type Variable Properties

Internally, string::operator==() is using string::compare(). Please refer to: CPlusPlus - string::operator==()

I wrote a small application to compare the performance, and apparently if you compile and run your code on debug environment the string::compare() is slightly faster than string::operator==(). However if you compile and run your code in Release environment, both are pretty much the same.

FYI, I ran 1,000,000 iteration in order to come up with such conclusion.

In order to prove why in debug environment the string::compare is faster, I went to the assembly and here is the code:

DEBUG BUILD

string::operator==()

        if (str1 == str2)
00D42A34  lea         eax,[str2]  
00D42A37  push        eax  
00D42A38  lea         ecx,[str1]  
00D42A3B  push        ecx  
00D42A3C  call        std::operator==<char,std::char_traits<char>,std::allocator<char> > (0D23EECh)  
00D42A41  add         esp,8  
00D42A44  movzx       edx,al  
00D42A47  test        edx,edx  
00D42A49  je          Algorithm::PerformanceTest::stringComparison_usingEqualOperator1+0C4h (0D42A54h)  

string::compare()

            if (str1.compare(str2) == 0)
00D424D4  lea         eax,[str2]  
00D424D7  push        eax  
00D424D8  lea         ecx,[str1]  
00D424DB  call        std::basic_string<char,std::char_traits<char>,std::allocator<char> >::compare (0D23582h)  
00D424E0  test        eax,eax  
00D424E2  jne         Algorithm::PerformanceTest::stringComparison_usingCompare1+0BDh (0D424EDh)

You can see that in string::operator==(), it has to perform extra operations (add esp, 8 and movzx edx,al)

RELEASE BUILD

string::operator==()

        if (str1 == str2)
008533F0  cmp         dword ptr [ebp-14h],10h  
008533F4  lea         eax,[str2]  
008533F7  push        dword ptr [ebp-18h]  
008533FA  cmovae      eax,dword ptr [str2]  
008533FE  push        eax  
008533FF  push        dword ptr [ebp-30h]  
00853402  push        ecx  
00853403  lea         ecx,[str1]  
00853406  call        std::basic_string<char,std::char_traits<char>,std::allocator<char> >::compare (0853B80h)  

string::compare()

            if (str1.compare(str2) == 0)
    00853830  cmp         dword ptr [ebp-14h],10h  
    00853834  lea         eax,[str2]  
    00853837  push        dword ptr [ebp-18h]  
    0085383A  cmovae      eax,dword ptr [str2]  
    0085383E  push        eax  
    0085383F  push        dword ptr [ebp-30h]  
    00853842  push        ecx  
00853843  lea         ecx,[str1]  
00853846  call        std::basic_string<char,std::char_traits<char>,std::allocator<char> >::compare (0853B80h)

Both assembly code are very similar as the compiler perform optimization.

Finally, in my opinion, the performance gain is negligible, hence I would really leave it to the developer to decide on which one is the preferred one as both achieve the same outcome (especially when it is release build).

The HAVING option can be used for this purpose and query should be

SELECT word, COUNT(*) FROM words 
GROUP BY word
HAVING COUNT(*) > 1;

And, how about this ...

string[] sizes = new string[] { "105", "101", "102", "103", "90" };

var size = from x in sizes
           orderby x.Length, x
           select x;

foreach (var p in size)
{
    Console.WriteLine(p);
}

Bootstrap 2.3.x and later supports the dropdown-submenu..

<ul class="dropdown-menu">
            <li><a href="#">Login</a></li>
            <li class="dropdown-submenu">
                <a tabindex="-1" href="#">More options</a>
                <ul class="dropdown-menu">
                    <li><a tabindex="-1" href="#">Second level</a></li>
                    <li><a href="#">Second level</a></li>
                    <li><a href="#">Second level</a></li>
                </ul>
            </li>
            <li><a href="#">Logout</a></li>
</ul>

Working demo on Bootply.com

Note: it is invalid to provide percentages directly as <img> width or height attribute unless you're using HTML 4.01 (see current spec, obsolete spec and this answer for more details). That being said, browsers will often tolerate such behaviour to support backwards-compatibility.

Those percentage widths in your 2nd example are actually applying to the container your <img> is in, and not the image's actual size. Say you have the following markup:

<div style="width: 1000px; height: 600px;">
    <img src="#" width="50%" height="50%">
</div>

Your resulting image will be 500px wide and 300px tall.

jQuery Resize

If you're trying to reduce an image to 50% of its width, you can do it with a snippet of jQuery:

$( "img" ).each( function() {
    var $img = $( this );
    $img.width( $img.width() * .5 );
});

Just make sure you take off any height/width = 50% attributes first.

if you add an #include <algorithm> then you can use the for_each function and a lambda function like so:

for_each(data.begin(), data.end(), [](Student *it) 
{
    std::cout<<it->name;
});

you can read more about the algorithm library at https://en.cppreference.com/w/cpp/algorithm

and about lambda functions in cpp at https://docs.microsoft.com/en-us/cpp/cpp/lambda-expressions-in-cpp?view=vs-2019

I've recently started doing something like this:

public class Main {
    @FunctionalInterface
    public interface NotDotNetDelegate {
        int doSomething(int a, int b);
    }

    public static void main(String[] args) {
        // in java 8 (lambdas):
        System.out.println(functionThatTakesDelegate((a, b) -> {return a*b;} , 10, 20));

    }

    public static int functionThatTakesDelegate(NotDotNetDelegate del, int a, int b) {
        // ...
        return del.doSomething(a, b);
    }
}

remove() has been deprecated. Use deleteOne(), deleteMany() or bulkWrite().

The code I use

TeleBot.deleteMany({chatID: chatID}, function (err, _) {
                if (err) {
                    return console.log(err);
                }
            });

Add the below theme in values -> style.xml

<style name="Theme_Dialog" parent="android:Theme.Light">
     <item name="android:windowNoTitle">true</item>
     <item name="android:windowBackground">@android:color/transparent</item>
</style>

Use this theme in your onCreateDialog method like this:

Dialog dialog = new Dialog(FlightBookActivity.this,R.style.Theme_Dialog);

Define your dialog layout including title bar in the xml file and set that xml file like this:

dialog.setContentView(R.layout.your_dialog_layout);

In my case .NET CRL Version in Application pool prppertires was set to No managed code (do not know why). Setting it to .NET CRL Version v4.0.30319 solved the problem.

DIV elements can get focus if set the tabindex attribute. Here is the working example.

#focus-example > .extra {_x000D_
  display: none;_x000D_
}_x000D_
#focus-example:focus > .extra {_x000D_
  display: block;_x000D_
}

<div id="focus-example" tabindex="0">_x000D_
  <div>Focus me!</div>_x000D_
  <div class="extra">Hooray!</div>_x000D_
</div>

For more information about focus and blur, you can check out this article.

Update: And here is another example using focus to create a menu.

#toggleMenu:focus {_x000D_
  outline: none;_x000D_
}_x000D_
button:focus + .menu {_x000D_
  display: block;_x000D_
}_x000D_
.menu {_x000D_
  display: none;_x000D_
}_x000D_
.menu:focus {_x000D_
  display: none;_x000D_
}

<div id="toggleMenu" tabindex="0">_x000D_
  <button type="button">Menu</button>_x000D_
  <ul class="menu" tabindex="1">_x000D_
    <li>Home</li>_x000D_
    <li>About Me</li>_x000D_
    <li>Contacts</li>_x000D_
  </ul>_x000D_
</div>

Declare them before the while loop.

$hn = "";
$pid = "";
$datereg = "";
$prefix = "";
$fname = "";
$lname = "";
$age = "";
$sex = "";

You are getting the notice because the variables are declared and assigned inside the loop.

After digging into hibernate source code and Below configuration goes to Oracle db for the next value after 50 inserts. So make your INST_PK_SEQ increment 50 each time it is called.

Hibernate 5 is used for below strategy

Check also below http://docs.jboss.org/hibernate/orm/5.1/userguide/html_single/Hibernate_User_Guide.html#identifiers-generators-sequence

@Id
@Column(name = "ID")
@GenericGenerator(name = "INST_PK_SEQ", 
strategy = "org.hibernate.id.enhanced.SequenceStyleGenerator",
parameters = {
        @org.hibernate.annotations.Parameter(
                name = "optimizer", value = "pooled-lo"),
        @org.hibernate.annotations.Parameter(
                name = "initial_value", value = "1"),
        @org.hibernate.annotations.Parameter(
                name = "increment_size", value = "50"),
        @org.hibernate.annotations.Parameter(
                name = SequenceStyleGenerator.SEQUENCE_PARAM, value = "INST_PK_SEQ"),
    }
)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "INST_PK_SEQ")
private Long id;

you are getting math domain error for either one of the reason : either you are trying to use a negative number inside log function or a zero value.

Take a look at http://developer.android.com/reference/org/json/JSONTokener.html

This might fix your issue.

None of the answers so far describe when one can use a forward declaration of a class template. So, here it goes.

A class template can be forwarded declared as:

template <typename> struct X;

Following the structure of the accepted answer,

Here's what you can and cannot do.

What you can do with an incomplete type:

• Declare a member to be a pointer or a reference to the incomplete type in another class template:

  template <typename T>
  class Foo {
      X<T>* ptr;
      X<T>& ref;
  };
  

• Declare a member to be a pointer or a reference to one of its incomplete instantiations:

  class Foo {
      X<int>* ptr;
      X<int>& ref;
  };
  

• Declare function templates or member function templates which accept/return incomplete types:

  template <typename T>
     void      f1(X<T>);
  template <typename T>
     X<T>    f2();
  

• Declare functions or member functions which accept/return one of its incomplete instantiations:

  void      f1(X<int>);
  X<int>    f2();
  

• Define function templates or member function templates which accept/return pointers/references to the incomplete type (but without using its members):

  template <typename T>
     void      f3(X<T>*, X<T>&) {}
  template <typename T>
     X<T>&   f4(X<T>& in) { return in; }
  template <typename T>
     X<T>*   f5(X<T>* in) { return in; }
  

• Define functions or methods which accept/return pointers/references to one of its incomplete instantiations (but without using its members):

  void      f3(X<int>*, X<int>&) {}
  X<int>&   f4(X<int>& in) { return in; }
  X<int>*   f5(X<int>* in) { return in; }
  

• Use it as a base class of another template class

  template <typename T>
  class Foo : X<T> {} // OK as long as X is defined before
                      // Foo is instantiated.
  
  Foo<int> a1; // Compiler error.
  
  template <typename T> struct X {};
  Foo<int> a2; // OK since X is now defined.
  

• Use it to declare a member of another class template:

  template <typename T>
  class Foo {
      X<T> m; // OK as long as X is defined before
              // Foo is instantiated. 
  };
  
  Foo<int> a1; // Compiler error.
  
  template <typename T> struct X {};
  Foo<int> a2; // OK since X is now defined.
  

• Define function templates or methods using this type

  template <typename T>
    void    f1(X<T> x) {}    // OK if X is defined before calling f1
  template <typename T>
    X<T>    f2(){return X<T>(); }  // OK if X is defined before calling f2
  
  void test1()
  {
     f1(X<int>());  // Compiler error
     f2<int>();     // Compiler error
  }
  
  template <typename T> struct X {};
  
  void test2()
  {
     f1(X<int>());  // OK since X is defined now
     f2<int>();     // OK since X is defined now
  }
  

What you cannot do with an incomplete type:

• Use one of its instantiations as a base class

  class Foo : X<int> {} // compiler error!
  

• Use one of its instantiations to declare a member:

  class Foo {
      X<int> m; // compiler error!
  };
  

• Define functions or methods using one of its instantiations

  void      f1(X<int> x) {}            // compiler error!
  X<int>    f2() {return X<int>(); }   // compiler error!
  

• Use the methods or fields of one of its instantiations, in fact trying to dereference a variable with incomplete type

  class Foo {
      X<int>* m;            
      void method()            
      {
          m->someMethod();      // compiler error!
          int i = m->someField; // compiler error!
      }
  };
  

• Create explicit instantiations of the class template

  template struct X<int>;
  

If you're using .NET Framework 4.5 then you use use the MimeMapping.GetMimeMapping(string FileName) to get the MIME-Type for your file. This is how I've used it in my action.

return File(Path.Combine(@"c:\path", fileFromDB.FileNameOnDisk), MimeMapping.GetMimeMapping(fileFromDB.FileName), fileFromDB.FileName);

$http({
    url: '/api/user',
    method: "POST",
    data: angular.toJson(yourData)
}).success(function (data, status, headers, config) {
    $scope.users = data.users;
}).error(function (data, status, headers, config) {
    $scope.status = status + ' ' + headers;
});

Make sure all services windows are closed before starting install/uninstall

Check out gVim. You can launch that in its own window.

gVim makes it really easy to manage multiple open buffers graphically.

You can also do the usual :e to open a new file, CTRL+^ to toggle between buffers, etc...

Another cool feature lets you open a popup window that lists all the buffers you've worked on.

This allows you to switch between open buffers with a single click.

To do this, click on the Buffers menu at the top and click the dotted line with the scissors.

Otherwise you can just open a new tab from your terminal session and launch vi from there.

You can usually open a new tab from terminal with CTRL+T or CTRL+ALT+T

Once vi is launched, it's easy to open new files and switch between them.

I recommend you to use JSON.NET. it is an open source library to serialize and deserialize your c# objects into json and Json objects into .net objects ...

Serialization Example:

Product product = new Product();
product.Name = "Apple";
product.Expiry = new DateTime(2008, 12, 28);
product.Price = 3.99M;
product.Sizes = new string[] { "Small", "Medium", "Large" };

string json = JsonConvert.SerializeObject(product);
//{
//  "Name": "Apple",
//  "Expiry": new Date(1230422400000),
//  "Price": 3.99,
//  "Sizes": [
//    "Small",
//    "Medium",
//    "Large"
//  ]
//}

Product deserializedProduct = JsonConvert.DeserializeObject<Product>(json);

Performance Comparison To Other JSON serializiation Techniques

To display a value nicely, you can use the pprint module. The easiest way to dump all variables with it is to do

from pprint import pprint

pprint(globals())
pprint(locals())

If you are running in CGI, a useful debugging feature is the cgitb module, which displays the value of local variables as part of the traceback.

This will give you the working directory of the current file.

File.dirname(__FILE__)

Example:

current_file: "/Users/nemrow/SITM/folder1/folder2/amazon.rb"

result: "/Users/nemrow/SITM/folder1/folder2"

If you're looking for a particular string, put quotes around it:

awk '$1 == "findtext" {print $3}'

Otherwise, awk will assume it's a variable name.

Of these two, the first one is a type mistake: '\0' is a character, not a pointer. The compiler still accepts it because it can convert it to a pointer.

The second one "works" only by coincidence. "\0" is a string literal of two characters. If those occur in multiple places in the source file, the compiler may, but need not, make them identical.

So the proper way to write the first one is

char* array[] = { "abc", "def", NULL };

and you test for array[index]==NULL. The proper way to test for the second one is array[index][0]=='\0'; you may also drop the '\0' in the string (i.e. spell it as "") since that will already include a null byte.

Short answer: call moveTaskToBack(true) on your Activity instead of System.exit(). This will hide your application until the user wants to use it again.

The longer answer starts with another question: why do you want to kill your application?

The Android OS handles memory management and processes and so on so my advice is just let Android worry about this for you. If the user wants to leave your application they can press the Home button and your application will effectively disappear. If the phone needs more memory later the OS will terminate your application then.

As long as you're responding to lifecycle events appropriately, neither you nor the user needs to care if your application is still running or not.

So if you want to hide your application call moveTaskToBack() and let Android decide when to kill it.

The problem comes from your Java application (or a library you are using).

First, you should read the entire outputs (Google for StreamGobbler), and pronto!

Javadoc says:

The parent process uses these streams to feed input to and get output from the subprocess. Because some native platforms only provide limited buffer size for standard input and output streams, failure to promptly write the input stream or read the output stream of the subprocess may cause the subprocess to block, and even deadlock.

Secondly, waitFor() your process to terminate. You then should close the input, output and error streams.

Finally destroy() your Process.

My sources:

• http://stuffthathappens.com/blog/2007/11/28/crash-boom-too-many-open-files/
• http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html?page=4
• http://kylecartmell.com/?p=9

Just tested and this works:

public class Coordinates {
    byte red;

    @JsonProperty("r")
    public byte getR() {
      return red;
    }

    @JsonProperty("red")
    public void setRed(byte red) {
      this.red = red;
    }
}

The idea is that method names should be different, so jackson parses it as different fields, not as one field.

Here is test code:

Coordinates c = new Coordinates();
c.setRed((byte) 5);

ObjectMapper mapper = new ObjectMapper();
System.out.println("Serialization: " + mapper.writeValueAsString(c));

Coordinates r = mapper.readValue("{\"red\":25}",Coordinates.class);
System.out.println("Deserialization: " + r.getR());

Result:

Serialization: {"r":5}
Deserialization: 25

select max(dates)
from yourTable
group by dates
having count(status) > 1

The scaling on your example figure is a bit strange but you can force it by plotting the index of each x-value and then setting the ticks to the data points:

import matplotlib.pyplot as plt
x = [0.00001,0.001,0.01,0.1,0.5,1,5]
# create an index for each tick position
xi = list(range(len(x)))
y = [0.945,0.885,0.893,0.9,0.996,1.25,1.19]
plt.ylim(0.8,1.4)
# plot the index for the x-values
plt.plot(xi, y, marker='o', linestyle='--', color='r', label='Square') 
plt.xlabel('x')
plt.ylabel('y') 
plt.xticks(xi, x)
plt.title('compare')
plt.legend() 
plt.show()

One more choice is to use Spring's org.springframework.util.FileSystemUtils relevant method which will recursively delete all content of the directory.

File directoryToDelete = new File(<your_directory_path_to_delete>);
FileSystemUtils.deleteRecursively(directoryToDelete);

That will do the job!

If you want to discard modifications you made to the file, you can do:

git reset first_Name.txt
git checkout first_Name.txt

In my case it was something else: the object I was saving should first have an id(e.g. save() should be called) before I could set any kind of relationship with it.

innerHTML is fine and still valid. Use it all the time on projects big and small. I just flipped to an open tab in my IDE and there was one right there.

 document.getElementById("data-progress").innerHTML = "<img src='../images/loading.gif'/>";

Not much has changed in js + dom manipulation since 2005, other than the addition of more libraries. You can easily set other properties such as

   uploadElement.style.width = "100%";

UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 30, 300, 50)];
label.backgroundColor = [UIColor clearColor];
label.textAlignment = NSTextAlignmentCenter;
label.textColor = [UIColor whiteColor];
label.numberOfLines = 0;
label.lineBreakMode = UILineBreakModeWordWrap;
label.text = @"Your Text";
[self.view addSubview:label];

On Ubuntu, after creating localhost and '%' versions of the user, and granting appropriate access to database.tables for both, I had to comment out the 'bind-address' in /etc/mysql/mysql.conf.d/mysql.cnf and restart mysql as sudo.

bind-address = 127.0.0.1

There should be only one localhost defined, check sites-enabled or nginx.conf.

Checking the Options Over Write Database worked for me :)

I'm not sure lookup is the right formula for this because of multiple arguments. Maybe hlookup or vlookup but these require you to have tables for values. A simple nested series of if does the trick for a small sample size

Try =IF(A1="a","pickup",IF(A1="b","collect",IF(A1="c","prepaid","")))

Now incorporate your left argument

=IF(LEFT(A1,1)="a","pickup",IF(LEFT(A1,1)="b","collect",IF(LEFT(A1,1)="c","prepaid","")))

Also note your usage of left, your argument doesn't specify the number of characters, but a set.

7/8/15 - Microsoft KB articles for the above mentioned functions. I don't think there's anything wrong with techonthenet, but I rather link to official sources.

• lookup
• hlookup
• vlookup
• if
• left

Add:

• DELIMITER at the beginning and end of the SP.
• DROP PROCEDURE IF EXISTS validar_egreso; at the beginning
• When calling the SP, use @variableName.

This works for me. (I modified some part of your script so ANYONE can run it with out having your tables).

DROP PROCEDURE IF EXISTS `validar_egreso`;

DELIMITER $$

CREATE DEFINER='root'@'localhost' PROCEDURE `validar_egreso` (
    IN codigo_producto VARCHAR(100),
    IN cantidad INT,
    OUT valido INT(11)
)
BEGIN

    DECLARE resta INT;
    SET resta = 0;

    SELECT (codigo_producto - cantidad) INTO resta;

    IF(resta > 1) THEN
       SET valido = 1;
    ELSE
       SET valido = -1;
    END IF;

    SELECT valido;
END $$

DELIMITER ;

-- execute the stored procedure
CALL validar_egreso(4, 1, @val);

-- display the result
select @val;

import java.util.regex.*;
import java.util.LinkedList;

public class Splitter {
    private static final Pattern DEFAULT_PATTERN = Pattern.compile("\\s+");

    private Pattern pattern;
    private boolean keep_delimiters;

    public Splitter(Pattern pattern, boolean keep_delimiters) {
        this.pattern = pattern;
        this.keep_delimiters = keep_delimiters;
    }
    public Splitter(String pattern, boolean keep_delimiters) {
        this(Pattern.compile(pattern==null?"":pattern), keep_delimiters);
    }
    public Splitter(Pattern pattern) { this(pattern, true); }
    public Splitter(String pattern) { this(pattern, true); }
    public Splitter(boolean keep_delimiters) { this(DEFAULT_PATTERN, keep_delimiters); }
    public Splitter() { this(DEFAULT_PATTERN); }

    public String[] split(String text) {
        if (text == null) {
            text = "";
        }

        int last_match = 0;
        LinkedList<String> splitted = new LinkedList<String>();

        Matcher m = this.pattern.matcher(text);

        while (m.find()) {

            splitted.add(text.substring(last_match,m.start()));

            if (this.keep_delimiters) {
                splitted.add(m.group());
            }

            last_match = m.end();
        }

        splitted.add(text.substring(last_match));

        return splitted.toArray(new String[splitted.size()]);
    }

    public static void main(String[] argv) {
        if (argv.length != 2) {
            System.err.println("Syntax: java Splitter <pattern> <text>");
            return;
        }

        Pattern pattern = null;
        try {
            pattern = Pattern.compile(argv[0]);
        }
        catch (PatternSyntaxException e) {
            System.err.println(e);
            return;
        }

        Splitter splitter = new Splitter(pattern);

        String text = argv[1];
        int counter = 1;
        for (String part : splitter.split(text)) {
            System.out.printf("Part %d: \"%s\"\n", counter++, part);
        }
    }
}

/*
    Example:
    > java Splitter "\W+" "Hello World!"
    Part 1: "Hello"
    Part 2: " "
    Part 3: "World"
    Part 4: "!"
    Part 5: ""
*/

I don't really like the other way, where you get an empty element in front and back. A delimiter is usually not at the beginning or at the end of the string, thus you most often end up wasting two good array slots.

Edit: Fixed limit cases. Commented source with test cases can be found here: http://snippets.dzone.com/posts/show/6453

I had a similar problem and I did something like the below mentioned steps with my Path environment variable to fix the problem

1. Located where my Anaconda3 was installed. I run Windows 7. Mine is located at C:\ProgramData\Anaconda3.

2. Open Control Panel - System - Advanced System Settings, under Advanced tab click on Environment Variables.

3. Under System Variables, located "Path" add the following: C:\ProgramData\Anaconda3\Scripts;C:\ProgramData\Anaconda3\;

Save and open new terminal. type in "conda". It worked for me.

Hope these steps help

The following worked for me (Windows 7):

oradim -shutdown -sid enter_sid_here
oradim -startup -sid enter_sid_here

(with enter_sid_here replaced by the SID)

GCC 4.9 introduces a newer C++ ABI version than your system libstdc++ has, so you need to tell the loader to use this newer version of the library by adding that path to LD_LIBRARY_PATH. Unfortunately, I cannot tell you straight off where the libstdc++ so for your GCC 4.9 installation is located, as this depends on how you configured GCC. So you need something in the style of:

export LD_LIBRARY_PATH=/home/user/lib/gcc-4.9.0/lib:/home/user/lib/boost_1_55_0/stage/lib:$LD_LIBRARY_PATH

Note the actual path may be different (there might be some subdirectory hidden under there, like `x86_64-unknown-linux-gnu/4.9.0´ or similar).

The problem here is

if (stop = true) is an assignation not a comparision.

Try if (stop == true)

Also take a look to the Top Ten Errors Java Programmers Make.

1) Create a key to sign your application, and remember the alias.

2) Install OpenSSL.

3) Put the bin folder of OpenSSL in your path.

4) Follow the steps mentioned under "Setup Single Sign-On" on the FB-Android-SDK page, and generate your Hash Key. Make sure you put the correct alias and keystore file name.

5) Create an application on Facebok, and under Mobile Devices tab, enter this Hash Key.

This in an example that can be used for example to feed a database key, I sometimes use instead of using AUTOINCREMENT options.

import datetime 

dt = datetime.datetime.now()
seq = int(dt.strftime("%Y%m%d%H%M%S"))

This is the code as 2017:

<i class="fa fa-facebook-square"></i>
<a href="#" onclick="window.open('https://www.facebook.com/sharer/sharer.php?u='+encodeURIComponent(location.href),'facebook-share-dialog','width=626,height=436');return false;">Share on Facebook</a>

Facebook now takes all data from OG metatags.

NOTE: This code assumes you have OG metatags on in site's code.

Source

you can do it with pure php and google geocode api

/*
 *
 * @param latlong (String) is Latitude and Longitude with , as separator for example "21.3724002,39.8016229"
 **/
function getCityNameByLatitudeLongitude($latlong)
{
    $APIKEY = "AIzaXXXXXXXXXXXXXXXXXXXXXXXXXXX"; // Replace this with your google maps api key 
    $googleMapsUrl = "https://maps.googleapis.com/maps/api/geocode/json?latlng=" . $latlong . "&language=ar&key=" . $APIKEY;
    $response = file_get_contents($googleMapsUrl);
    $response = json_decode($response, true);
    $results = $response["results"];
    $addressComponents = $results[0]["address_components"];
    $cityName = "";
    foreach ($addressComponents as $component) {
        // echo $component;
        $types = $component["types"];
        if (in_array("locality", $types) && in_array("political", $types)) {
            $cityName = $component["long_name"];
        }
    }
    if ($cityName == "") {
        echo "Failed to get CityName";
    } else {
        echo $cityName;
    }
}

Spaces are used for separating Arguments. In your case C:\Program becomes argument. If your file path contains spaces then add Double quotation marks. Then cmd will recognize it as single argument.

@gnarf answer is right . wanted to add more information .

Mozilla Bug Reference : https://bugzilla.mozilla.org/show_bug.cgi?id=627942

Terminate these steps if header is a case-insensitive match for one of the following headers:

Accept-Charset
Accept-Encoding
Access-Control-Request-Headers
Access-Control-Request-Method
Connection
Content-Length
Cookie
Cookie2
Date
DNT
Expect
Host
Keep-Alive
Origin
Referer
TE
Trailer
Transfer-Encoding
Upgrade
User-Agent
Via

Source : https://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#dom-xmlhttprequest-setrequestheader

Header files can contain any valid C code, since they are injected into the compilation unit by the pre-processor prior to compilation.

If a header file contains a function, and is included by multiple .c files, each .c file will get a copy of that function and create a symbol for it. The linker will complain about the duplicate symbols.

It is technically possible to create static functions in a header file for inclusion in multiple .c files. Though this is generally not done because it breaks from the convention that code is found in .c files and declarations are found in .h files.

See the discussions in C/C++: Static function in header file, what does it mean? for more explanation.

A one-rule version:

var val = example[function() { for (var k in example) return k }()];

You could try this:

#include <stdio.h>

int main() 
{  
  int i,j;
  int my_array[3][3] ={10, 23, 42, 1, 654, 0, 40652, 22, 0};
  for(i = 0; i < 3; i++) 
  {
       for(j = 0; j < 3; j++) 
       {
         printf("%d ", my_array[i][j]);
       }
    printf("\n");
  } 
  return 0;
}

The best approach for this sort of thing is probably git rebase. It allows you to pull changes from master into your development branch, but leave all of your development work "on top of" (later in the commit log) the stuff from master. When your new work is complete, the merge back to master is then very straightforward.

Did you try to set timezone by func: http://pl.php.net/manual/en/function.date-default-timezone-set.php

npm install -g npm@[version] fixed the problem

I found very good explanation about .la files here http://openbooks.sourceforge.net/books/wga/dealing-with-libraries.html

Summary (The way I understood): Because libtool deals with static and dynamic libraries internally (through --diable-shared or --disable-static) it creates a wrapper on the library files it builds. They are treated as binary library files with in libtool supported environment.

I think you are using 'global' incorrectly. See Python reference. You should declare variable without global and then inside the function when you want to access global variable you declare it global yourvar.

#!/usr/bin/python

total

def checkTotal():
    global total
    total = 0

See this example:

#!/usr/bin/env python

total = 0

def doA():
    # not accessing global total
    total = 10

def doB():
    global total
    total = total + 1

def checkTotal():
    # global total - not required as global is required
    # only for assignment - thanks for comment Greg
    print total

def main():
    doA()
    doB()
    checkTotal()

if __name__ == '__main__':
    main()

Because doA() does not modify the global total the output is 1 not 11.

1. As per https://msdn.microsoft.com/en-us/library/ms180065.aspx, "DBCC USEROPTIONS reports an isolation level of 'read committed snapshot' when the database option READ_COMMITTED_SNAPSHOT is set to ON and the transaction isolation level is set to 'read committed'. The actual isolation level is read committed."

2. Also in SQL Server Management Studio, in database properties under Options->Miscellaneous there is "Is Read Committed Snapshot On" option status

You can't really talk about slowness based on the data you provided in a question. And I don't think you should even worry too much about performance at this stage of developement. It's called premature optimization.

However, I'd suggest that you'd include Tag_ID column in the Tags table. It's usually a good practice that every table has an ID column.

I found the following solution:

I have the text in a hidden input. Because setSelectionRange doesn't work on hidden inputs, I changed temporarily the type to text, copied the text, and then made it hidden again. If you want to copy the text from an element, you can pass it to the function and save its content in the target variable.

jQuery('#copy').on('click', function () {
    copyToClipboard();
});

function copyToClipboard() {
    var target = jQuery('#hidden_text');

    // Make it visible, so can be focused
    target.attr('type', 'text');
    target.focus();
    // Select all the text
    target[0].setSelectionRange(0, target.val().length);

    // Copy the selection
    var succeed;
    try {
        succeed = document.execCommand("copy");
    }
    catch (e) {
        succeed = false;
    }

    // Hide input again
    target.attr('type', 'hidden');

    return succeed;
}

You can create your own. For example:

Create a view with white background and rounded corners:

var view = UIView(frame: CGRect(x: 0, y: 0, width: 300, height: 50))
view.backgroundColor = UIColor.whiteColor()
view.layer.cornerRadius = 10

Add two subviews, a UIActivityIndicatorView and a UILabel:

var wait = UIActivityIndicatorView(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
wait.color = UIColor.blackColor()
wait.hidesWhenStopped = false


var text = UILabel(frame: CGRect(x: 60, y: 0, width: 200, height: 50))
text.text = "Processing..."

view.addSubview(wait)
view.addSubview(text)

Max length will not work with <input type="number" the best way i know is to use oninput event to limit the maxlength. Please see the below code for simple implementation.

<input name="somename"
    oninput="javascript: if (this.value.length > this.maxLength) this.value = this.value.slice(0, this.maxLength);"
    type = "number"
    maxlength = "6"
 />

Upsert is what you want. UPSERT syntax was added to SQLite with version 3.24.0 (2018-06-04).

CREATE TABLE phonebook2(
  name TEXT PRIMARY KEY,
  phonenumber TEXT,
  validDate DATE
);

INSERT INTO phonebook2(name,phonenumber,validDate)
  VALUES('Alice','704-555-1212','2018-05-08')
  ON CONFLICT(name) DO UPDATE SET
    phonenumber=excluded.phonenumber,
    validDate=excluded.validDate
  WHERE excluded.validDate>phonebook2.validDate;

Be warned that at this point the actual word "UPSERT" is not part of the upsert syntax.

The correct syntax is

INSERT INTO ... ON CONFLICT(...) DO UPDATE SET...

and if you are doing INSERT INTO SELECT ... your select needs at least WHERE true to solve parser ambiguity about the token ON with the join syntax.

Be warned that INSERT OR REPLACE... will delete the record before inserting a new one if it has to replace, which could be bad if you have foreign key cascades or other delete triggers.

.row {
    letter-spacing: -.31em;
    word-spacing: -.43em;
}
.col-md-4 {
    float: none;
    display: inline-block;
    vertical-align: middle;
}

Note: .col-md-4 could be any grid column, its just an example here.

i found that my google payment account was not activated. i activated it and the error was solved. link for vitrification: google account verification

Gilean's answer is great, but I just wanted to add that sometimes there are rare exceptions to best practices, and you might want to test your environment both ways to see what will work best.

In one case, I found that query worked faster for my purposes because I was bulk transferring trusted data from an Ubuntu Linux box running PHP7 with the poorly supported Microsoft ODBC driver for MS SQL Server.

I arrived at this question because I had a long running script for an ETL that I was trying to squeeze for speed. It seemed intuitive to me that query could be faster than prepare & execute because it was calling only one function instead of two. The parameter binding operation provides excellent protection, but it might be expensive and possibly avoided if unnecessary.

Given a couple rare conditions:

1. If you can't reuse a prepared statement because it's not supported by the Microsoft ODBC driver.

2. If you're not worried about sanitizing input and simple escaping is acceptable. This may be the case because binding certain datatypes isn't supported by the Microsoft ODBC driver.

3. PDO::lastInsertId is not supported by the Microsoft ODBC driver.

Here's a method I used to test my environment, and hopefully you can replicate it or something better in yours:

To start, I've created a basic table in Microsoft SQL Server

CREATE TABLE performancetest (
    sid INT IDENTITY PRIMARY KEY,
    id INT,
    val VARCHAR(100)
);

And now a basic timed test for performance metrics.

$logs = [];

$test = function (String $type, Int $count = 3000) use ($pdo, &$logs) {
    $start = microtime(true);
    $i = 0;
    while ($i < $count) {
        $sql = "INSERT INTO performancetest (id, val) OUTPUT INSERTED.sid VALUES ($i,'value $i')";
        if ($type === 'query') {
            $smt = $pdo->query($sql);
        } else {
            $smt = $pdo->prepare($sql);
            $smt ->execute();
        }
        $sid = $smt->fetch(PDO::FETCH_ASSOC)['sid'];
        $i++;
    }
    $total = (microtime(true) - $start);
    $logs[$type] []= $total;
    echo "$total $type\n";
};

$trials = 15;
$i = 0;
while ($i < $trials) {
    if (random_int(0,1) === 0) {
        $test('query');
    } else {
        $test('prepare');
    }
    $i++;
}

foreach ($logs as $type => $log) {
    $total = 0;
    foreach ($log as $record) {
        $total += $record;
    }
    $count = count($log);
    echo "($count) $type Average: ".$total/$count.PHP_EOL;
}

I've played with multiple different trial and counts in my specific environment, and consistently get between 20-30% faster results with query than prepare/execute

5.8128969669342 prepare
5.8688418865204 prepare
4.2948560714722 query
4.9533629417419 query
5.9051351547241 prepare
4.332102060318 query
5.9672858715057 prepare
5.0667371749878 query
3.8260300159454 query
4.0791549682617 query
4.3775160312653 query
3.6910600662231 query
5.2708210945129 prepare
6.2671611309052 prepare
7.3791449069977 prepare
(7) prepare Average: 6.0673267160143
(8) query Average: 4.3276024162769

I'm curious to see how this test compares in other environments, like MySQL.

// using System.Xml;

String rawXml =
      @"<root>
          <person firstname=""Riley"" lastname=""Scott"" />
          <person firstname=""Thomas"" lastname=""Scott"" />
      </root>";

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(rawXml);

I think this should work.

I have an alternative to the methods above that used the ALT tag and a CSS selector on the alt tag... Instead, add a URL hash like this:

First your Markdown image code:

![my image](/img/myImage.jpg#left)
![my image](/img/myImage.jpg#right)
![my image](/img/myImage.jpg#center)

Note the added URL hash #center.

Now add this rule in CSS using CSS 3 attribute selectors to select images with a certain path.

img[src*='#left'] {
    float: left;
}
img[src*='#right'] {
    float: right;
}
img[src*='#center'] {
    display: block;
    margin: auto;
}

You should be able to use a URL hash like this almost like defining a class name and it isn't a misuse of the ALT tag like some people had commented about for that solution. It also won't require any additional extensions. Do one for float right and left as well or any other styles you might want.

You can use the Android NDK, but answers should note that the Android NDK app is not free to use and there's no clear open source route to programming Android on Android in an increasingly Android-driven market that began as open source, with Android developer support or the extensiveness of the NDK app, meaning you're looking at abandoning Android as any kind of first steps programming platform without payments.

Note: I consider subscription requests as payments under duress and this is a freemium context which continues to go undefeated by the open source community.

Here is the simple arraylist example for insertion at specific index

ArrayList<Integer> str=new ArrayList<Integer>();
    str.add(0);
    str.add(1);
    str.add(2);
    str.add(3); 
    //Result = [0, 1, 2, 3]
    str.add(1, 11);
    str.add(2, 12);
    //Result = [0, 11, 12, 1, 2, 3]

There are many ways it can be achieved. The tool you use mostly depends on your own preference or experience.

Using tr command:

tr '\n' ',' < somefile

Using awk:

awk -F'\n' '{if(NR == 1) {printf $0} else {printf ","$0}}' somefile

An alternative to theme_classic() is the theme that comes with the cowplot package, theme_cowplot() (loaded automatically with the package). It looks similar to theme_classic(), with a few subtle differences. Most importantly, the default label sizes are larger, so the resulting figures can be used in publications without further modifications needed (in particular if you save them with save_plot() instead of ggsave()). Also, the background is transparent, not white, which may be useful if you want to edit the figure in illustrator. Finally, faceted plots look better, in my opinion.

Example:

library(cowplot)
a <- seq(1,20)
b <- a^0.25
df <- as.data.frame(cbind(a,b))

p <- ggplot(df, aes(x = a, y = b)) + geom_point()
save_plot('plot.png', p) # alternative to ggsave, with default settings that work well with the theme

This is what the file plot.png produced by this code looks like:

Disclaimer: I'm the package author.

for the example above the solution would look like this:

import PILasOPENCV as Image
import PILasOPENCV as ImageDraw
import PILasOPENCV as ImageFont
# from PIL import ImageFont, ImageDraw, Image
import numpy as np
import cv2

image = cv2.imread("lena.jpg")

# Convert to PIL Image
cv2_im_rgb = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
pil_im = Image.fromarray(cv2_im_rgb)

draw = ImageDraw.Draw(pil_im)

# Choose a font
font = ImageFont.truetype("Roboto-Regular.ttf", 40)

# Draw the text
draw.text((0, 0), "Your Text Here", font=font)

# Save the image
cv2_im_processed = pil_im.getim()
cv2.imshow("cv2_im_processed", cv2_im_processed)
cv2.waitKey()

X milliseconds = X / 1000 seconds = (X / 1000) / 60 minutes

If you have 100,000 milliseconds, divide this value by 1,000 and you're left with 100 seconds. Now 100 / 60 = 1.666~ minutes, but fractional minutes have no value, so: do 100 % 60 = 40 seconds to find the remainder, then integer division 100 / 60 = 1 minute, with 40 seconds remainder. Answer: 1 minute, 40 seconds.

- (void)GetCurrentTimeStamp
    {
        NSDateFormatter *objDateformat = [[NSDateFormatter alloc] init];
        [objDateformat setDateFormat:@"yyyy-MM-dd"];
        NSString    *strTime = [objDateformat stringFromDate:[NSDate date]];
        NSString    *strUTCTime = [self GetUTCDateTimeFromLocalTime:strTime];//You can pass your date but be carefull about your date format of NSDateFormatter.
        NSDate *objUTCDate  = [objDateformat dateFromString:strUTCTime];
        long long milliseconds = (long long)([objUTCDate timeIntervalSince1970] * 1000.0);

        NSString *strTimeStamp = [NSString stringWithFormat:@"%lld",milliseconds];
NSLog(@"The Timestamp is = %@",strTimeStamp);
    }

 - (NSString *) GetUTCDateTimeFromLocalTime:(NSString *)IN_strLocalTime
    {
        NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
        [dateFormatter setDateFormat:@"yyyy-MM-dd"];
        NSDate  *objDate    = [dateFormatter dateFromString:IN_strLocalTime];
        [dateFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
        NSString *strDateTime   = [dateFormatter stringFromDate:objDate];
        return strDateTime;
    }

NOTE :- The Timestamp must be in UTC Zone, So I convert our local Time to UTC Time.

I haven't had a problem just using Unix-style path separators, even on Windows (though it is good practice to check File.separatorChar).

The technique of using ClassLoader.getResource() is best for read-only resources that are going to be loaded from JAR files. Sometimes, you can programmatically determine the application directory, which is useful for admin-configurable files or server applications. (Of course, user-editable files should be stored somewhere in the System.getProperty("user.home") directory.)

Here you have few solutions ;)

http://www.bennadel.com/blog/122-Getting-Only-the-Date-Part-of-a-Date-Time-Stamp-in-SQL-Server.htm

It seems that your action needs k but ModelBinder can not find it (from form, or request or view data or ..) Change your action to this:

public ActionResult DetailsData(int? k)
    {

        EmployeeContext Ec = new EmployeeContext();
        if (k != null)
        {
           Employee emp = Ec.Employees.Single(X => X.EmpId == k.Value);

           return View(emp);
        }
        return View();
    }

As I didn't want to break anything, I did this to be able to use newer versions of Python3 than Python v3.4 :

$ sudo update-alternatives --install /usr/local/bin/python3 python3 /usr/bin/python3.6 1
update-alternatives: using /usr/bin/python3.6 to provide /usr/local/bin/python3 (python3) in auto mode
$ sudo update-alternatives --install /usr/local/bin/python3 python3 /usr/bin/python3.7 2
update-alternatives: using /usr/bin/python3.7 to provide /usr/local/bin/python3 (python3) in auto mode
$ update-alternatives --list python3
/usr/bin/python3.6
/usr/bin/python3.7
$ sudo update-alternatives --config python3
There are 2 choices for the alternative python3 (providing /usr/local/bin/python3).

  Selection    Path                Priority   Status
------------------------------------------------------------
* 0            /usr/bin/python3.7   2         auto mode
  1            /usr/bin/python3.6   1         manual mode
  2            /usr/bin/python3.7   2         manual mode

Press enter to keep the current choice[*], or type selection number: 1
update-alternatives: using /usr/bin/python3.6 to provide /usr/local/bin/python3 (python3) in manual mode
$ ls -l /usr/local/bin/python3 /etc/alternatives/python3 
lrwxrwxrwx 1 root root 18 2019-05-03 02:59:03 /etc/alternatives/python3 -> /usr/bin/python3.6*
lrwxrwxrwx 1 root root 25 2019-05-03 02:58:53 /usr/local/bin/python3 -> /etc/alternatives/python3*

The other answers cover the 2 most common approaches, Xinclude and XML external entities. Microsoft has a really great writeup on why one should prefer Xinclude, as well as several example implementations. I've quoted the comparison below:

Per http://msdn.microsoft.com/en-us/library/aa302291.aspx

Why XInclude?

The first question one may ask is "Why use XInclude instead of XML external entities?" The answer is that XML external entities have a number of well-known limitations and inconvenient implications, which effectively prevent them from being a general-purpose inclusion facility. Specifically:

• An XML external entity cannot be a full-blown independent XML document—neither standalone XML declaration nor Doctype declaration is allowed. That effectively means an XML external entity itself cannot include other external entities.
• An XML external entity must be well formed XML (not so bad at first glance, but imagine you want to include sample C# code into your XML document).
• Failure to load an external entity is a fatal error; any recovery is strictly forbidden.
• Only the whole external entity may be included, there is no way to include only a portion of a document. -External entities must be declared in a DTD or an internal subset. This opens a Pandora's Box full of implications, such as the fact that the document element must be named in Doctype declaration and that validating readers may require that the full content model of the document be defined in DTD among others.

The deficiencies of using XML external entities as an inclusion mechanism have been known for some time and in fact spawned the submission of the XML Inclusion Proposal to the W3C in 1999 by Microsoft and IBM. The proposal defined a processing model and syntax for a general-purpose XML inclusion facility.

Four years later, version 1.0 of the XML Inclusions, also known as Xinclude, is a Candidate Recommendation, which means that the W3C believes that it has been widely reviewed and satisfies the basic technical problems it set out to solve, but is not yet a full recommendation.

Another good site which provides a variety of example implementations is https://www.xml.com/pub/a/2002/07/31/xinclude.html. Below is a common use case example from their site:

<book xmlns:xi="http://www.w3.org/2001/XInclude">

  <title>The Wit and Wisdom of George W. Bush</title>

  <xi:include href="malapropisms.xml"/>

  <xi:include href="mispronunciations.xml"/>

  <xi:include href="madeupwords.xml"/>

</book>

treeViewMain.SelectedNode = treeViewMain.Nodes.Find(searchNode, true)[0];

where searchNode is the name of the node. I'm personally using a combo "Node + Panel" where Node name is Node + and the same tag is also set on panel of choice. With this command + scan of panels by tag i'm usually able to work a treeview+panel full menu set.

boost::format

or std::stringstream

std::stringstream msg;
msg << "Hello world, " << myInt  << niceToSeeYouString;
msg.str(); // returns std::string object

If you can't use pointer-events: none; and are targeting modern browsers you can use composedPath to detect a direct click on the object like so:

element.addEventListener("click", function (ev) {
    if (ev.composedPath()[0] === this) {
        // your code here ...
    }
})

You can read more about composedPath here: https://developer.mozilla.org/en-US/docs/Web/API/Event/composedPath

This seemed far harder to find than it needs to be for OSX. Too many conflicting posts

For MAC OSX Mavericks Java JDK 7, follow these steps to locate keytool:

Firstly make sure to install Java JDK:

http://docs.oracle.com/javase/7/docs/webnotes/install/mac/mac-jdk.html

Then type this into command prompt:

/usr/libexec/java_home -v 1.7

it will spit out something like:

/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home

keytool is located in the same directory as javac. ie:

/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/bin

From bin directory you can use the keytool.

go to Run Configuration and in argument tab you can write your argument

An updated answer reflecting changed times:

GitPython currently is the easiest to use. It supports wrapping of many git plumbing commands and has pluggable object database (dulwich being one of them), and if a command isn't implemented, provides an easy api for shelling out to the command line. For example:

repo = Repo('.')
repo.checkout(b='new_branch')

This calls:

bash$ git checkout -b new_branch

Dulwich is also good but much lower level. It's somewhat of a pain to use because it requires operating on git objects at the plumbing level and doesn't have nice porcelain that you'd normally want to do. However, if you plan on modifying any parts of git, or use git-receive-pack and git-upload-pack, you need to use dulwich.

Below code avoids creating infinite loop. Assume XYZ is the string which we are looking for in the workbook.

   Private Sub CommandButton1_Click()
   Dim Sh As Worksheet, myCounter
   Dim Loc As Range

   For Each Sh In ThisWorkbook.Worksheets
   With Sh.UsedRange
   Set Loc = .Cells.Find(What:="XYZ")

    If Not Loc Is Nothing Then

           MsgBox ("Value is found  in " & Sh.Name)
           myCounter = 1
            Set Loc = .FindNext(Loc)

    End If
End With
Next
If myCounter = 0 Then
MsgBox ("Value not present in this worrkbook")
End If

End Sub

You could have the form contain the additional data as hidden fields which you would set right before sending the AJAX request to the corresponding values.

Another possibility consists into using this little gem to serialize your form into a javascript object (instead of string) and add the missing data:

var data = $('#myForm').serializeObject();
// now add some additional stuff
data['wordlist'] = wordlist;
$.post('/page.php', data);

You need a click listener which calls addActivityItem if less than 2 options exist:

var activities = document.getElementById("activitySelector");

activities.addEventListener("click", function() {
    var options = activities.querySelectorAll("option");
    var count = options.length;
    if(typeof(count) === "undefined" || count < 2)
    {
        addActivityItem();
    }
});

activities.addEventListener("change", function() {
    if(activities.value == "addNew")
    {
        addActivityItem();
    }
});

function addActivityItem() {
    // ... Code to add item here
}

A live demo is here on JSfiddle.

If it is on a Linux box, I would suggest you add the database IP name and IP resolution to the /etc/hosts.

I have the same error and when we do the above, it works fine.

One can always go for analytical functions as well which will give you more control

select tmp.row from ( select row, rank() over(partition by id order by id desc ) as rnk from table) tmp where tmp.rnk=1

If you face issue with rank() function depending on the type of data then one can choose from row_number() or dense_rank() too.

Get started quickly

You simply type vim into the terminal to open it and start a new file.

You can pass a filename as an option and it will open that file, e.g. vim main.c. You can open multiple files by passing multiple file arguments.

Vim has different modes, unlike most editors you have probably used. You begin in NORMAL mode, which is where you will spend most of your time once you become familiar with vim.

To return to NORMAL mode after changing to a different mode, press Esc. It's a good idea to map your Caps Lock key to Esc, as it's closer and nobody really uses the Caps Lock key.

The first mode to try is INSERT mode, which is entered with a for append after cursor, or i for insert before cursor.

To enter VISUAL mode, where you can select text, use v. There are many other variants of this mode, which you will discover as you learn more about vim.

To save your file, ensure you're in NORMAL mode and then enter the command :w. When you press :, you will see your command appear in the bottom status bar. To save and exit, use :x. To quit without saving, use :q. If you had made a change you wanted to discard, use :q!.

Configure vim to your liking

You can edit your ~/.vimrc file to configure vim to your liking. It's best to look at a few first (here's mine) and then decide which options suits your style.

This is how mine looks:

To get the file explorer on the left, use NERDTree. For the status bar, use vim-airline. Finally, the color scheme is solarized.

Further learning

You can use man vim for some help inside the terminal. Alternatively, run vimtutor which is a good hands-on starting point.

It's a good idea to print out a Vim Cheatsheet and keep it in front of you while you're learning vim.

Good luck!

Here you have two links for MD5 hashing and other hash methods:

Javadoc API: https://docs.oracle.com/javase/1.5.0/docs/api/java/security/MessageDigest.html

Tutorial: http://www.twmacinta.com/myjava/fast_md5.php

I respect all the solutions given here.

But what I came to know after reading all these, we haven't observed that on which folder the struts.xml file or any configuration file which is necessary for the web application.

My SOULUTION IS:

1. copy the struts.xml file to the src folder of our project.
2. click "file-->save all" in eclipse and go click "project-->clean".
3. restart the server.

Hope the problem solved.

In the examples below the client is the browser and the server is the webserver hosting the website.

Before you can understand these technologies, you have to understand classic HTTP web traffic first.

Regular HTTP:

1. A client requests a webpage from a server.
2. The server calculates the response
3. The server sends the response to the client.

Ajax Polling:

1. A client requests a webpage from a server using regular HTTP (see HTTP above).
2. The client receives the requested webpage and executes the JavaScript on the page which requests a file from the server at regular intervals (e.g. 0.5 seconds).
3. The server calculates each response and sends it back, just like normal HTTP traffic.

Ajax Long-Polling:

1. A client requests a webpage from a server using regular HTTP (see HTTP above).
2. The client receives the requested webpage and executes the JavaScript on the page which requests a file from the server.
3. The server does not immediately respond with the requested information but waits until there's new information available.
4. When there's new information available, the server responds with the new information.
5. The client receives the new information and immediately sends another request to the server, re-starting the process.

HTML5 Server Sent Events (SSE) / EventSource:

1. A client requests a webpage from a server using regular HTTP (see HTTP above).
2. The client receives the requested webpage and executes the JavaScript on the page which opens a connection to the server.

3. The server sends an event to the client when there's new information available.

   • Real-time traffic from server to client, mostly that's what you'll need
   • You'll want to use a server that has an event loop
   • Connections with servers from other domains are only possible with correct CORS settings
   • If you want to read more, I found these very useful: (article), (article), (article), (tutorial).

HTML5 Websockets:

1. A client requests a webpage from a server using regular http (see HTTP above).
2. The client receives the requested webpage and executes the JavaScript on the page which opens a connection with the server.

3. The server and the client can now send each other messages when new data (on either side) is available.

   • Real-time traffic from the server to the client and from the client to the server
   • You'll want to use a server that has an event loop
   • With WebSockets it is possible to connect with a server from another domain.
   • It is also possible to use a third party hosted websocket server, for example Pusher or others. This way you'll only have to implement the client side, which is very easy!
   • If you want to read more, I found these very useful: (article), (article) (tutorial).

Comet:

Comet is a collection of techniques prior to HTML5 which use streaming and long-polling to achieve real time applications. Read more on wikipedia or this article.

Now, which one of them should I use for a realtime app (that I need to code). I have been hearing a lot about websockets (with socket.io [a node.js library]) but why not PHP ?

You can use PHP with WebSockets, check out Ratchet.

Having a table with a foreign key to itself does make sense to me.

You can then use a common table expression in SQL or the connect by prior statement in Oracle to build your tree.

TL;DR:

lsof -ti tcp:3000 -sTCP:LISTEN | xargs kill

If you're in a situation where there are both clients and servers using the port, e.g.:

$ lsof -i tcp:3000
COMMAND     PID         USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
node       2043 benjiegillam   21u  IPv4 0xb1b4330c68e5ad61      0t0  TCP localhost:3000->localhost:52557 (ESTABLISHED)
node       2043 benjiegillam   22u  IPv4 0xb1b4330c8d393021      0t0  TCP localhost:3000->localhost:52344 (ESTABLISHED)
node       2043 benjiegillam   25u  IPv4 0xb1b4330c8eaf16c1      0t0  TCP localhost:3000 (LISTEN)
Google    99004 benjiegillam  125u  IPv4 0xb1b4330c8bb05021      0t0  TCP localhost:52557->localhost:3000 (ESTABLISHED)
Google    99004 benjiegillam  216u  IPv4 0xb1b4330c8e5ea6c1      0t0  TCP localhost:52344->localhost:3000 (ESTABLISHED)

then you probably don't want to kill both.

In this situation you can use -sTCP:LISTEN to only show the pid of processes that are listening. Combining this with the -t terse format you can automatically kill the process:

lsof -ti tcp:3000 -sTCP:LISTEN | xargs kill

Change the code to

List<string> nameslist = new List<string> {"one", "two", "three"};

or

List<string> nameslist = new List<string>(new[] {"one", "two", "three"});

Check whether you have declared the method where this code is executing as static. If it is static there may be some other thread resetting the ResultSet.

The Extensible Markup Language (XML) 1.0 only includes the block comments.

In x0n's example, it should be:

SET ROWCOUNT @top

SELECT * from sometable

SET ROWCOUNT 0

http://msdn.microsoft.com/en-us/library/ms188774.aspx

\0 will be interpreted as an octal escape sequence if it is followed by other digits, so \00 will be interpreted as a single character. (\0 is technically an octal escape sequence as well, at least in C).

The way you're doing it:

std::string ("0\0" "0", 3)  // String concatenation 

works because this version of the constructor takes a char array; if you try to just pass "0\0" "0" as a const char*, it will treat it as a C string and only copy everything up until the null character.

Here is a list of escape sequences.

Shorter:

User.where("id > 200")

I had to do the same here and the above works except I had to provide login details as it was a local docker repository.

It is as per the above but with supplying the username/password in the URL.

curl -k -X GET https://yourusername:yourpassword@theregistryURL/v2/_catalog

It comes back as unformatted JSON.

I piped it through the python formatter for ease of human reading, in case you would like to have it in this format.

curl -k -X GET https://yourusername:yourpassword@theregistryURL/v2/_catalog | python -m json.tool

Wouldn't that just be something like this:

Textbox myTxtbx = new Textbox();
myTxtbx.Text = "Enter text here...";

myTxtbx.GotFocus += GotFocus.EventHandle(RemoveText);
myTxtbx.LostFocus += LostFocus.EventHandle(AddText);

public void RemoveText(object sender, EventArgs e)
{
    if (myTxtbx.Text == "Enter text here...") 
    {
     myTxtbx.Text = "";
    }
}

public void AddText(object sender, EventArgs e)
{
    if (string.IsNullOrWhiteSpace(myTxtbx.Text))
        myTxtbx.Text = "Enter text here...";
}

Thats just pseudocode but the concept is there.

You probably want something like this overload of String.Join:

String.Join<T> Method (String, IEnumerable<T>)

Docs:

http://msdn.microsoft.com/en-us/library/dd992421.aspx

In your example, you'd use

String.Join("", Client);

You need a bindingsource object to act as an intermediary and assist in the binding. Then instead of updating the user interface, update the underlining model.

var model = (Fruit) bindingSource1.DataSource;

model.FruitType = "oranges";

bindingSource.ResetBindings();

Read up on BindingSource and simple data binding for Windows Forms.

In Activity A

private void startSwitcher() {
    int yourInt = 200;
    Intent myIntent = new Intent(A.this, B.class);
    intent.putExtra("yourIntName", yourInt);
    startActivity(myIntent);
}

in Activity B

int score = getIntent().getIntExtra("yourIntName", 0);

When uploading .mp4 file into Perl script, using CGI.pm I see it as video/mp when printing out Content-type for the uploaded file. I hope it will help someone.

You can use this which refers to the current input element.

$('input[type=radio][name=bedStatus]').change(function() {
    if (this.value == 'allot') {
        alert("Allot Thai Gayo Bhai");
    }
    else if (this.value == 'transfer') {
        alert("Transfer Thai Gayo");
    }
});

http://jsfiddle.net/4gZAT/

Note that you are comparing the value against allot in both if statements and :radio selector is deprecated.

In case that you are not using jQuery, you can use the document.querySelectorAll and HTMLElement.addEventListener methods:

var radios = document.querySelectorAll('input[type=radio][name="bedStatus"]');

function changeHandler(event) {
   if ( this.value === 'allot' ) {
     console.log('value', 'allot');
   } else if ( this.value === 'transfer' ) {
      console.log('value', 'transfer');
   }  
}

Array.prototype.forEach.call(radios, function(radio) {
   radio.addEventListener('change', changeHandler);
});

You could use a closure. Just modify your code like this:

google.maps.event.addListener(marker,'click', (function(marker,content,infowindow){ 
    return function() {
        infowindow.setContent(content);
        infowindow.open(map,marker);
    };
})(marker,content,infowindow));  

Here is the DEMO

You can try this:

:backup move C:\FilesToBeBackedUp\*.* E:\BackupPlace\ timeout 36000 goto backup

If that doesn't work try to replace "timeout" with sleep. Ik this post is over a year old, just helping anyone with the same problem.

As detailed in the Oracle Java SE Support Roadmap

After April 2015, Oracle will no longer post updates of Java SE 7 to its public download sites. Existing Java SE 7 downloads already posted as of April 2015 will remain accessible in the Java Archive

Check the Java SE 7 Archive Downloads page. The last release was update 80, therefore the 32-bit filename to download is jdk-7u80-windows-i586.exe (64-bit is named jdk-7u80-windows-x64.exe.

Old Java downloads also require a sign on to an Oracle account now :-( however with some crafty cookie creating one can use wget to grab the file without signing in.

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/7u80-b15/jdk-7u80-windows-i586.exe"

"Employed Russian" is among the best answer, and I think all other suggested answer may not work. The reason is simply because when an application is first created, all its the APIs it needs are resolved at compile time. Using "ldd" u can see all the statically linked dependencies:

ldd /usr/lib/firefox/firefox
    linux-vdso.so.1 =>  (0x00007ffd5c5f0000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f727e708000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f727e500000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f727e1f8000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f727def0000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f727db28000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f727eb78000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f727d910000)

But at runtime, firefox will also load many other dynamic libraries, eg (for firefox) there are many "glib"-labelled libraries loaded (even though statically linked there are none):

 /usr/lib/x86_64-linux-gnu/libdbus-glib-1.so.2.2.2
 /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0
 /usr/lib/x86_64-linux-gnu/libavahi-glib.so.1.0.2

Manytimes, you can see names of one version being soft-linked into another version. Eg:

lrwxrwxrwx 1 root root     23 Dec 21  2014 libdbus-glib-1.so.2 -> libdbus-glib-1.so.2.2.2
-rw-r--r-- 1 root root 160832 Mar  1  2013 libdbus-glib-1.so.2.2.2

This therefore means different version of "libraries" exists in one system - which is not a problem as it is the same file, and it will provide compatibilities when applications have multiple versions dependencies.

Therefore, at the system level, all the libraries are almost interdependent on one another, and just changing the libraries loading priority via manipulating LD_PRELOAD or LD_LIBRARY_PATH will not help - even it can load, runtime it may still crash.

http://lightofdawn.org/wiki/wiki.cgi/-wiki/NewAppsOnOldGlibc

Best alternative is chroot (mentioned by ER briefly): but for this you will need to recreate the entire environment in which is the original binary execute - usually starting from /lib, /usr/lib/, /usr/lib/x86 etc. You can either use "Buildroot", or YoctoProject, or just tar from an existing Distro environment. (like Fedora/Suse etc).

<%@ Page Language="C#" %>
<script runat="server">
  protected override void OnLoad(EventArgs e)
  {
      Response.Redirect("new.aspx");
  }
</script>

It's super easy you can just add this to your Adapter -> getDropDownView

getDropDownView:

convertView.setBackground(getContext().getResources().getDrawable(R.drawable.bg_spinner_dropdown));

bg_spinner_dropdown:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@color/white" />
    <corners
        android:bottomLeftRadius=enter code here"25dp"
        android:bottomRightRadius="25dp"
        android:topLeftRadius="25dp"
        android:topRightRadius="25dp" />
</shape>

The above examples didn't really work for me, and the link to the forum as a #1 solution is awful to dig through. Here is a class I wrote (in part), and the other bit is merged from this link I found buried somewhere

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.ServiceProcess;
using System.Runtime.InteropServices;

namespace SystemControl {
    class Services {

#region "Environment Variables"
        public static string GetEnvironment(string name, bool ExpandVariables=true) {
            if ( ExpandVariables ) {
                return System.Environment.GetEnvironmentVariable( name );
            } else {
                return (string)Microsoft.Win32.Registry.LocalMachine.OpenSubKey( @"SYSTEM\CurrentControlSet\Control\Session Manager\Environment\" ).GetValue( name, "", Microsoft.Win32.RegistryValueOptions.DoNotExpandEnvironmentNames );
            }
        }

        public static void SetEnvironment( string name, string value ) {
            System.Environment.SetEnvironmentVariable(name, value);
        }
#endregion

#region "ServiceCalls Native"
        public static ServiceController[] List { get { return ServiceController.GetServices(); } }

        public static void Start( string serviceName, int timeoutMilliseconds ) {
            ServiceController service=new ServiceController( serviceName );
            try {
                TimeSpan timeout=TimeSpan.FromMilliseconds( timeoutMilliseconds );

                service.Start();
                service.WaitForStatus( ServiceControllerStatus.Running, timeout );
            } catch {
                // ...
            }
        }

        public static void Stop( string serviceName, int timeoutMilliseconds ) {
            ServiceController service=new ServiceController( serviceName );
            try {
                TimeSpan timeout=TimeSpan.FromMilliseconds( timeoutMilliseconds );

                service.Stop();
                service.WaitForStatus( ServiceControllerStatus.Stopped, timeout );
            } catch {
                // ...
            }
        }

        public static void Restart( string serviceName, int timeoutMilliseconds ) {
            ServiceController service=new ServiceController( serviceName );
            try {
                int millisec1=Environment.TickCount;
                TimeSpan timeout=TimeSpan.FromMilliseconds( timeoutMilliseconds );

                service.Stop();
                service.WaitForStatus( ServiceControllerStatus.Stopped, timeout );

                // count the rest of the timeout
                int millisec2=Environment.TickCount;
                timeout=TimeSpan.FromMilliseconds( timeoutMilliseconds-( millisec2-millisec1 ) );

                service.Start();
                service.WaitForStatus( ServiceControllerStatus.Running, timeout );
            } catch {
                // ...
            }
        }

        public static bool IsInstalled( string serviceName ) {
            // get list of Windows services
            ServiceController[] services=ServiceController.GetServices();

            // try to find service name
            foreach ( ServiceController service in services ) {
                if ( service.ServiceName==serviceName )
                    return true;
            }
            return false;
        }
#endregion

#region "ServiceCalls API"
        private const int STANDARD_RIGHTS_REQUIRED = 0xF0000;
        private const int SERVICE_WIN32_OWN_PROCESS = 0x00000010;

        [Flags]
        public enum ServiceManagerRights {
            Connect = 0x0001,
            CreateService = 0x0002,
            EnumerateService = 0x0004,
            Lock = 0x0008,
            QueryLockStatus = 0x0010,
            ModifyBootConfig = 0x0020,
            StandardRightsRequired = 0xF0000,
            AllAccess = (StandardRightsRequired | Connect | CreateService |
            EnumerateService | Lock | QueryLockStatus | ModifyBootConfig)
        }

        [Flags]
        public enum ServiceRights {
            QueryConfig = 0x1,
            ChangeConfig = 0x2,
            QueryStatus = 0x4,
            EnumerateDependants = 0x8,
            Start = 0x10,
            Stop = 0x20,
            PauseContinue = 0x40,
            Interrogate = 0x80,
            UserDefinedControl = 0x100,
            Delete = 0x00010000,
            StandardRightsRequired = 0xF0000,
            AllAccess = (StandardRightsRequired | QueryConfig | ChangeConfig |
            QueryStatus | EnumerateDependants | Start | Stop | PauseContinue |
            Interrogate | UserDefinedControl)
        }

        public enum ServiceBootFlag {
            Start = 0x00000000,
            SystemStart = 0x00000001,
            AutoStart = 0x00000002,
            DemandStart = 0x00000003,
            Disabled = 0x00000004
        }

        public enum ServiceState {
            Unknown = -1, // The state cannot be (has not been) retrieved.
            NotFound = 0, // The service is not known on the host server.
            Stop = 1, // The service is NET stopped.
            Run = 2, // The service is NET started.
            Stopping = 3,
            Starting = 4,
        }

        public enum ServiceControl {
            Stop = 0x00000001,
            Pause = 0x00000002,
            Continue = 0x00000003,
            Interrogate = 0x00000004,
            Shutdown = 0x00000005,
            ParamChange = 0x00000006,
            NetBindAdd = 0x00000007,
            NetBindRemove = 0x00000008,
            NetBindEnable = 0x00000009,
            NetBindDisable = 0x0000000A
        }

        public enum ServiceError {
            Ignore = 0x00000000,
            Normal = 0x00000001,
            Severe = 0x00000002,
            Critical = 0x00000003
        }

        [StructLayout(LayoutKind.Sequential)]
        private class SERVICE_STATUS {
            public int dwServiceType = 0;
            public ServiceState dwCurrentState = 0;
            public int dwControlsAccepted = 0;
            public int dwWin32ExitCode = 0;
            public int dwServiceSpecificExitCode = 0;
            public int dwCheckPoint = 0;
            public int dwWaitHint = 0;
        }

        [DllImport("advapi32.dll", EntryPoint = "OpenSCManagerA")]
        private static extern IntPtr OpenSCManager(string lpMachineName, string lpDatabaseName, ServiceManagerRights dwDesiredAccess);
        [DllImport("advapi32.dll", EntryPoint = "OpenServiceA", CharSet = CharSet.Ansi)]
        private static extern IntPtr OpenService(IntPtr hSCManager, string lpServiceName, ServiceRights dwDesiredAccess);
        [DllImport("advapi32.dll", EntryPoint = "CreateServiceA")]
        private static extern IntPtr CreateService(IntPtr hSCManager, string lpServiceName, string lpDisplayName, ServiceRights dwDesiredAccess, int dwServiceType, ServiceBootFlag dwStartType, ServiceError dwErrorControl, string lpBinaryPathName, string lpLoadOrderGroup, IntPtr lpdwTagId, string lpDependencies, string lp, string lpPassword);
        [DllImport("advapi32.dll")]
        private static extern int CloseServiceHandle(IntPtr hSCObject);
        [DllImport("advapi32.dll")]
        private static extern int QueryServiceStatus(IntPtr hService, SERVICE_STATUS lpServiceStatus);
        [DllImport("advapi32.dll", SetLastError = true)]
        private static extern int DeleteService(IntPtr hService);
        [DllImport("advapi32.dll")]
        private static extern int ControlService(IntPtr hService, ServiceControl dwControl, SERVICE_STATUS lpServiceStatus);
        [DllImport("advapi32.dll", EntryPoint = "StartServiceA")]
        private static extern int StartService(IntPtr hService, int dwNumServiceArgs, int lpServiceArgVectors);

        /// <summary>
        /// Takes a service name and tries to stop and then uninstall the windows serviceError
        /// </summary>
        /// <param name="ServiceName">The windows service name to uninstall</param>
        public static void Uninstall(string ServiceName)
        {
            IntPtr scman = OpenSCManager(ServiceManagerRights.Connect);
            try
            {
                IntPtr service = OpenService(scman, ServiceName, ServiceRights.StandardRightsRequired | ServiceRights.Stop | ServiceRights.QueryStatus);
                if (service == IntPtr.Zero)
                {
                    throw new ApplicationException("Service not installed.");
                }
                try
                {
                    StopService(service);
                    int ret = DeleteService(service);
                    if (ret == 0)
                    {
                        int error = Marshal.GetLastWin32Error();
                        throw new ApplicationException("Could not delete service " + error);
                    }
                }
                finally
                {
                    CloseServiceHandle(service);
                }
            }
            finally
            {
                CloseServiceHandle(scman);
            }
        }

        /// <summary>
        /// Accepts a service name and returns true if the service with that service name exists
        /// </summary>
        /// <param name="ServiceName">The service name that we will check for existence</param>
        /// <returns>True if that service exists false otherwise</returns>
        public static bool ServiceIsInstalled(string ServiceName)
        {
            IntPtr scman = OpenSCManager(ServiceManagerRights.Connect);
            try
            {
                IntPtr service = OpenService(scman, ServiceName,
                ServiceRights.QueryStatus);
                if (service == IntPtr.Zero) return false;
                CloseServiceHandle(service);
                return true;
            }
            finally
            {
                CloseServiceHandle(scman);
            }
        }

        /// <summary>
        /// Takes a service name, a service display name and the path to the service executable and installs / starts the windows service.
        /// </summary>
        /// <param name="ServiceName">The service name that this service will have</param>
        /// <param name="DisplayName">The display name that this service will have</param>
        /// <param name="FileName">The path to the executable of the service</param>
        public static void InstallAndStart(string ServiceName, string DisplayName,
        string FileName)
        {
            IntPtr scman = OpenSCManager(ServiceManagerRights.Connect |
            ServiceManagerRights.CreateService);
            try
            {
                IntPtr service = OpenService(scman, ServiceName,
                ServiceRights.QueryStatus | ServiceRights.Start);
                if (service == IntPtr.Zero)
                {
                    service = CreateService(scman, ServiceName, DisplayName,
                    ServiceRights.QueryStatus | ServiceRights.Start, SERVICE_WIN32_OWN_PROCESS,
                    ServiceBootFlag.AutoStart, ServiceError.Normal, FileName, null, IntPtr.Zero,
                    null, null, null);
                }
                if (service == IntPtr.Zero)
                {
                    throw new ApplicationException("Failed to install service.");
                }
                try
                {
                    StartService(service);
                }
                finally
                {
                    CloseServiceHandle(service);
                }
            }
            finally
            {
                CloseServiceHandle(scman);
            }
        }

        /// <summary>
        /// Takes a service name and starts it
        /// </summary>
        /// <param name="Name">The service name</param>
        public static void StartService(string Name)
        {
            IntPtr scman = OpenSCManager(ServiceManagerRights.Connect);
            try
            {
                IntPtr hService = OpenService(scman, Name, ServiceRights.QueryStatus |
                ServiceRights.Start);
                if (hService == IntPtr.Zero)
                {
                    throw new ApplicationException("Could not open service.");
                }
                try
                {
                    StartService(hService);
                }
                finally
                {
                    CloseServiceHandle(hService);
                }
            }
            finally
            {
                CloseServiceHandle(scman);
            }
        }

        /// <summary>
        /// Stops the provided windows service
        /// </summary>
        /// <param name="Name">The service name that will be stopped</param>
        public static void StopService(string Name)
        {
            IntPtr scman = OpenSCManager(ServiceManagerRights.Connect);
            try
            {
                IntPtr hService = OpenService(scman, Name, ServiceRights.QueryStatus |
                ServiceRights.Stop);
                if (hService == IntPtr.Zero)
                {
                    throw new ApplicationException("Could not open service.");
                }
                try
                {
                    StopService(hService);
                }
                finally
                {
                    CloseServiceHandle(hService);
                }
            }
            finally
            {
                CloseServiceHandle(scman);
            }
        }

        /// <summary>
        /// Stars the provided windows service
        /// </summary>
        /// <param name="hService">The handle to the windows service</param>
        private static void StartService(IntPtr hService)
        {
            SERVICE_STATUS status = new SERVICE_STATUS();
            StartService(hService, 0, 0);
            WaitForServiceStatus(hService, ServiceState.Starting, ServiceState.Run);
        }

        /// <summary>
        /// Stops the provided windows service
        /// </summary>
        /// <param name="hService">The handle to the windows service</param>
        private static void StopService(IntPtr hService)
        {
            SERVICE_STATUS status = new SERVICE_STATUS();
            ControlService(hService, ServiceControl.Stop, status);
            WaitForServiceStatus(hService, ServiceState.Stopping, ServiceState.Stop);
        }

        /// <summary>
        /// Takes a service name and returns the <code>ServiceState</code> of the corresponding service
        /// </summary>
        /// <param name="ServiceName">The service name that we will check for his <code>ServiceState</code></param>
        /// <returns>The ServiceState of the service we wanted to check</returns>
        public static ServiceState GetServiceStatus(string ServiceName)
        {
            IntPtr scman = OpenSCManager(ServiceManagerRights.Connect);
            try
            {
                IntPtr hService = OpenService(scman, ServiceName,
                ServiceRights.QueryStatus);
                if (hService == IntPtr.Zero)
                {
                    return ServiceState.NotFound;
                }
                try
                {
                    return GetServiceStatus(hService);
                }
                finally
                {
                    CloseServiceHandle(scman);
                }
            }
            finally
            {
                CloseServiceHandle(scman);
            }
        }

        /// <summary>
        /// Gets the service state by using the handle of the provided windows service
        /// </summary>
        /// <param name="hService">The handle to the service</param>
        /// <returns>The <code>ServiceState</code> of the service</returns>
        private static ServiceState GetServiceStatus(IntPtr hService)
        {
            SERVICE_STATUS ssStatus = new SERVICE_STATUS();
            if (QueryServiceStatus(hService, ssStatus) == 0)
            {
                throw new ApplicationException("Failed to query service status.");
            }
            return ssStatus.dwCurrentState;
        }

        /// <summary>
        /// Returns true when the service status has been changes from wait status to desired status
        /// ,this method waits around 10 seconds for this operation.
        /// </summary>
        /// <param name="hService">The handle to the service</param>
        /// <param name="WaitStatus">The current state of the service</param>
        /// <param name="DesiredStatus">The desired state of the service</param>
        /// <returns>bool if the service has successfully changed states within the allowed timeline</returns>
        private static bool WaitForServiceStatus(IntPtr hService, ServiceState
        WaitStatus, ServiceState DesiredStatus)
        {
            SERVICE_STATUS ssStatus = new SERVICE_STATUS();
            int dwOldCheckPoint;
            int dwStartTickCount;

            QueryServiceStatus(hService, ssStatus);
            if (ssStatus.dwCurrentState == DesiredStatus) return true;
            dwStartTickCount = Environment.TickCount;
            dwOldCheckPoint = ssStatus.dwCheckPoint;

            while (ssStatus.dwCurrentState == WaitStatus)
            {
                // Do not wait longer than the wait hint. A good interval is
                // one tenth the wait hint, but no less than 1 second and no
                // more than 10 seconds.

                int dwWaitTime = ssStatus.dwWaitHint / 10;

                if (dwWaitTime < 1000) dwWaitTime = 1000;
                else if (dwWaitTime > 10000) dwWaitTime = 10000;

                System.Threading.Thread.Sleep(dwWaitTime);

                // Check the status again.

                if (QueryServiceStatus(hService, ssStatus) == 0) break;

                if (ssStatus.dwCheckPoint > dwOldCheckPoint)
                {
                    // The service is making progress.
                    dwStartTickCount = Environment.TickCount;
                    dwOldCheckPoint = ssStatus.dwCheckPoint;
                }
                else
                {
                    if (Environment.TickCount - dwStartTickCount > ssStatus.dwWaitHint)
                    {
                        // No progress made within the wait hint
                        break;
                    }
                }
            }
            return (ssStatus.dwCurrentState == DesiredStatus);
        }

        /// <summary>
        /// Opens the service manager
        /// </summary>
        /// <param name="Rights">The service manager rights</param>
        /// <returns>the handle to the service manager</returns>
        private static IntPtr OpenSCManager(ServiceManagerRights Rights)
        {
            IntPtr scman = OpenSCManager(null, null, Rights);
            if (scman == IntPtr.Zero)
            {
                throw new ApplicationException("Could not connect to service control manager.");
            }
            return scman;
        }

#endregion

    }
}

To install a service, run the InstallAndStart command as follows:

  SystemControl.InstallAndStart(
                                 "apache",
                                 "Apache Web Server",
                                 @"""c:\apache\bin\httpd.exe"" -k runservice"
  );

Make sure the account that is running the program has permission to install services. You can always 'Run As Administrator' on the program.

I have also included several commands for non-api access which do not install or remove services, but you can list them and control several (start, stop, restart). You really only need to elevate permissions for installing or removing services.

There are a couple of commands for getting and setting environment variables as well, such as OPENSSL_CONF or TEMP. For the most part, the parameters and method names should be pretty self-explanatory.

For what its worth, I couldn't get it working on IE7/8/9 and the multiple declaration option didn't make any difference.

The fix for me was as a result of the instructions on the Technical Considerations Page where it highlights...

For best display in IE, make the stylesheet 'link' tag the first element in the HTML 'head' section.

Works across IE7/8/9 for me now.

Maybe you cannot use manifest class from generated code in your project. So, you can use manifest class from android sdk "android.Manifest.permission.WRITE_EXTERNAL_STORAGE". But in Marsmallow version have 2 permission must grant are WRITE and READ EXTERNAL STORAGE in storage category. See my program, my program will request permission until user choose yes and do something after permissions is granted.

            if (Build.VERSION.SDK_INT >= 23) {
                if (ContextCompat.checkSelfPermission(LoginActivity.this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                        != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(LoginActivity.this, android.Manifest.permission.READ_EXTERNAL_STORAGE)
                        != PackageManager.PERMISSION_GRANTED) {
                    ActivityCompat.requestPermissions(LoginActivity.this,
                            new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE, android.Manifest.permission.READ_EXTERNAL_STORAGE},
                            1);
                } else {
                    //do something
                }
            } else {
                    //do something
            }

I got the issue too, and at last I found the solution for my issue.I was builded the controller's UI in storyboard , but the controller's UI did not relate its control to code, I use this code to init vc:

    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Me" bundle:nil];
    [sb instantiateViewControllerWithIdentifier:@"HeaderViewController"];

This code above will cause the issue, and after I changed the init code to this below, I resolved the problem:

HeaderViewController *head_vc = [[HeaderViewController alloc] init];

VBA does not have an internal implementation of a dictionary, but from VBA you can still use the dictionary object from MS Scripting Runtime Library.

Dim d
Set d = CreateObject("Scripting.Dictionary")
d.Add "a", "aaa"
d.Add "b", "bbb"
d.Add "c", "ccc"

If d.Exists("c") Then
    MsgBox d("c")
End If

You can use below query to create table and insert distinct values into this table:

Select Distinct Column1, Column2, Column3 into New_Users from Old_Users

c can be used on lists (and not only on vectors):

# you have
l1 = list(2, 3)
l2 = list(4)

# you want
list(2, 3, 4)
[[1]]
[1] 2

[[2]]
[1] 3

[[3]]
[1] 4

# you can do
c(l1, l2)
[[1]]
[1] 2

[[2]]
[1] 3

[[3]]
[1] 4

If you have a list of lists, you can do it (perhaps) more comfortably with do.call, eg:

do.call(c, list(l1, l2))

There are a set of available properties to all Maven projects.

From Introduction to the POM:

project.basedir: The directory that the current project resides in.

This means this points to where your Maven projects resides on your system. It corresponds to the location of the pom.xml file. If your POM is located inside /path/to/project/pom.xml then this property will evaluate to /path/to/project.

Some properties are also inherited from the Super POM, which is the case for project.build.directory. It is the value inside the <project><build><directory> element of the POM. You can get a description of all those values by looking at the Maven model. For project.build.directory, it is:

The directory where all files generated by the build are placed. The default value is target.

This is the directory that will hold every generated file by the build.

How about a NuGet Windows Identity Foundation. Just add it you you project and away you go! Its one of the MS owned NuGets so should be maintained accordingly.

EDIT: In Windows 8 Windows Identity Foundation is installed (enabled) by turning a windows feature on in Control Panel > All Control Panel Items > Programs and Features > Turn Windows feature on or off the feature is Windows Identity Foundation 3.5. Installers linked in the answer above will not work on Windows 8

I would use Bootstrap's grid to achieve the desired result. The class="img-responsive" works nicely. Something like:

    <div class="container-fluid">
        <div class="row">
            <div class="col-md-3"><img src="./pictures/placeholder.jpg" class="img-responsive" alt="Some picture" width="410" height="307"></div>
            <div class="col-md-9"><h1>Heading</h1><p>Your Information.</p></div>
        </div>
    </div>

java.io.File doesn't represent an open file, it represents a path in the filesystem. Therefore having close method on it doesn't make sense.

Actually, this class was misnamed by the library authors, it should be called something like Path.

Want to add an answer here for the sake of completeness.

<a href="tel:1234567">Call 123-4567</a>

Works just fine on most devices. However, on desktops this will appear as a link which does nothing when you click on it so you should consider using CSS to make it conditionally visible only on mobile devices.

Also, you should know that Skype (which is fairly popular) uses a different syntax by default (but can be parametered to use tel:).

<a href="callto:1234567">Call 123-4567</a>

However, I think in latest mobile browsers (I know for sure on Android) now the tel syntax should offer a popup of available applications that can be used to complete the calling action.

You can use the HttpWebRequest class to do so.

Example here:

using System;
using System.Net;
using System.Text;
using System.IO;


    public class Test
    {
        // Specify the URL to receive the request.
        public static void Main (string[] args)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create (args[0]);

            // Set some reasonable limits on resources used by this request
            request.MaximumAutomaticRedirections = 4;
            request.MaximumResponseHeadersLength = 4;
            // Set credentials to use for this request.
            request.Credentials = CredentialCache.DefaultCredentials;
            HttpWebResponse response = (HttpWebResponse)request.GetResponse ();

            Console.WriteLine ("Content length is {0}", response.ContentLength);
            Console.WriteLine ("Content type is {0}", response.ContentType);

            // Get the stream associated with the response.
            Stream receiveStream = response.GetResponseStream ();

            // Pipes the stream to a higher level stream reader with the required encoding format. 
            StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8);

            Console.WriteLine ("Response stream received.");
            Console.WriteLine (readStream.ReadToEnd ());
            response.Close ();
            readStream.Close ();
        }
    }

/*
The output from this example will vary depending on the value passed into Main 
but will be similar to the following:

Content length is 1542
Content type is text/html; charset=utf-8
Response stream received.
<html>
...
</html>

*/

One extra forward slash (/) in front of tx and the *.xml file troubled me for 8 hours!!

My mistake:

http://www.springframework.org/schema/tx/ http://www.springframework.org/schema/tx/spring-tx-4.3.xsd

Correction:

http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd

Indeed one character less/more manages to keep programmers busy for hours!

There are two ways(actually there are more) that you could do this.
1. using lxml
pip install lxml

from lxml import etree, objectify
from lxml.etree import XMLSyntaxError

def xml_validator(some_xml_string, xsd_file='/path/to/my_schema_file.xsd'):
    try:
        schema = etree.XMLSchema(file=xsd_file)
        parser = objectify.makeparser(schema=schema)
        objectify.fromstring(some_xml_string, parser)
        print "YEAH!, my xml file has validated"
    except XMLSyntaxError:
        #handle exception here
        print "Oh NO!, my xml file does not validate"
        pass

xml_file = open('my_xml_file.xml', 'r')
xml_string = xml_file.read()
xml_file.close()

xml_validator(xml_string, '/path/to/my_schema_file.xsd')

2. Use xmllint from the commandline. xmllint comes installed in many linux distributions.

>> xmllint --format --pretty 1 --load-trace --debug --schema /path/to/my_schema_file.xsd /path/to/my_xml_file.xml

Symmetric Key Cryptography : Symmetric key uses the same key for encryption and decryption. The main challenge with this type of cryptography is the exchange of the secret key between the two parties sender and receiver.

Example : The following example uses symmetric key for encryption and decryption algorithm available as part of the Sun's JCE(Java Cryptography Extension). Sun JCE is has two layers, the crypto API layer and the provider layer.

DES (Data Encryption Standard) was a popular symmetric key algorithm. Presently DES is outdated and considered insecure. Triple DES and a stronger variant of DES. It is a symmetric-key block cipher. There are other algorithms like Blowfish, Twofish and AES(Advanced Encryption Standard). AES is the latest encryption standard over the DES.

Steps :

1. Add the Security Provider : We are using the SunJCE Provider that is available with the JDK.
2. Generate Secret Key : Use KeyGenerator and an algorithm to generate a secret key. We are using DESede.
3. Encode Text : For consistency across platform encode the plain text as byte using UTF-8 encoding.
4. Encrypt Text : Instantiate Cipher with ENCRYPT_MODE, use the secret key and encrypt the bytes.
5. Decrypt Text : Instantiate Cipher with DECRYPT_MODE, use the same secret key and decrypt the bytes.

All the above given steps and concept are same, we just replace algorithms.

import java.util.Base64;    
import javax.crypto.Cipher;  
import javax.crypto.KeyGenerator;   
import javax.crypto.SecretKey;  
public class EncryptionDecryptionAES {  
    static Cipher cipher;  

    public static void main(String[] args) throws Exception {
        /* 
         create key 
         If we need to generate a new key use a KeyGenerator
         If we have existing plaintext key use a SecretKeyFactory
        */ 
        KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
        keyGenerator.init(128); // block size is 128bits
        SecretKey secretKey = keyGenerator.generateKey();

        /*
          Cipher Info
          Algorithm : for the encryption of electronic data
          mode of operation : to avoid repeated blocks encrypt to the same values.
          padding: ensuring messages are the proper length necessary for certain ciphers 
          mode/padding are not used with stream cyphers.  
         */
        cipher = Cipher.getInstance("AES"); //SunJCE provider AES algorithm, mode(optional) and padding schema(optional)  

        String plainText = "AES Symmetric Encryption Decryption";
        System.out.println("Plain Text Before Encryption: " + plainText);

        String encryptedText = encrypt(plainText, secretKey);
        System.out.println("Encrypted Text After Encryption: " + encryptedText);

        String decryptedText = decrypt(encryptedText, secretKey);
        System.out.println("Decrypted Text After Decryption: " + decryptedText);
    }

    public static String encrypt(String plainText, SecretKey secretKey)
            throws Exception {
        byte[] plainTextByte = plainText.getBytes();
        cipher.init(Cipher.ENCRYPT_MODE, secretKey);
        byte[] encryptedByte = cipher.doFinal(plainTextByte);
        Base64.Encoder encoder = Base64.getEncoder();
        String encryptedText = encoder.encodeToString(encryptedByte);
        return encryptedText;
    }

    public static String decrypt(String encryptedText, SecretKey secretKey)
            throws Exception {
        Base64.Decoder decoder = Base64.getDecoder();
        byte[] encryptedTextByte = decoder.decode(encryptedText);
        cipher.init(Cipher.DECRYPT_MODE, secretKey);
        byte[] decryptedByte = cipher.doFinal(encryptedTextByte);
        String decryptedText = new String(decryptedByte);
        return decryptedText;
    }
}

Output:

Plain Text Before Encryption: AES Symmetric Encryption Decryption
Encrypted Text After Encryption: sY6vkQrWRg0fvRzbqSAYxepeBIXg4AySj7Xh3x4vDv8TBTkNiTfca7wW/dxiMMJl
Decrypted Text After Decryption: AES Symmetric Encryption Decryption

Source

Example: Cipher with two modes, they are encrypt and decrypt. we have to start every time after setting mode to encrypt or decrypt a text.

Very simple in Swift. Just place the following into your App Delegate.

UserDefaults.standard.register(defaults: ["UserAgent" : "Custom Agent"])

If you want to append to the existing agent string then:

let userAgent = UIWebView().stringByEvaluatingJavaScript(from: "navigator.userAgent")! + " Custom Agent"
UserDefaults.standard.register(defaults: ["UserAgent" : userAgent])

Note: You may will need to uninstall and reinstall the App to avoid appending to the existing agent string.

Simply the response is already parsed, you don't need to parse it again. if you parse it again it will give you "unexpected token o" however you have to specify datatype in your request to be of type dataType='json'

from subprocess import Popen

Popen('python filename.py')

or how-can-i-make-one-python-file-run-another-file

Consider this code:

Products::whereIn('id', function($query){
    $query->select('paper_type_id')
    ->from(with(new ProductCategory)->getTable())
    ->whereIn('category_id', ['223', '15'])
    ->where('active', 1);
})->get();