Programs & Examples On #Associative array

a simple code snippet that i prepared, hope it will be usefull for you;

$ages = array("Kerem"=>"35","Ahmet"=>"65","Talip"=>"62","Kamil"=>"60");

reset($ages);

for ($i=0; $i < count($ages); $i++){
echo "Key : " . key($ages) . " Value : " . current($ages) . "<br>";
next($ages);
}
reset($ages);

As I needed get all elements in a nice way I encountered this SO subject "Traversing 2 dimensional associative array/object" - no matter the name for me, because functionality counts.

var imgs_pl = { 
    'offer':        { 'img': 'wer-handwritter_03.png', 'left': 1, 'top': 2 },
    'portfolio':    { 'img': 'wer-handwritter_10.png', 'left': 1, 'top': 2 },
    'special':      { 'img': 'wer-handwritter_15.png', 'left': 1, 'top': 2 }
};
for (key in imgs_pl) { 
    console.log(key);
    for (subkey in imgs_pl[key]) { 
        console.log(imgs_pl[key][subkey]);
    }
}

Expanding on Ram Dane's answer, the key function is an alternative way to get the key of the current index of the array. You can create the following function,

    function get_key($array, $index){
      $idx=0;
      while($idx!=$index  && next($array)) $idx++;
      if($idx==$index) return key($array);
      else return '';
    }

The keys are accessed using an exclamation point: ${!array[@]}, the values are accessed using ${array[@]}.

You can iterate over the key/value pairs like this:

for i in "${!array[@]}"
do
  echo "key  : $i"
  echo "value: ${array[$i]}"
done

Note the use of quotes around the variable in the for statement (plus the use of @ instead of *). This is necessary in case any keys include spaces.

The confusion in the other answer comes from the fact that your question includes "foo" and "bar" for both the keys and the values.

echo implode(",", array_keys($companies->toArray()));

$companies->toArray() -- this is just in case if your $variable is an object, otherwise just pass $companies.

That's it!

Somehow all examples, while work well, are overcomplicated:

• They use new Array(), which is an overkill (and an overhead) for a simple associative array (AKA dictionary).
• The better ones use new Object(). It works fine, but why all this extra typing?

This question is tagged "beginner", so let's make it simple.

The über-simple way to use a dictionary in JavaScript or "Why doesn't JavaScript have a special dictionary object?":

// Create an empty associative array (in JavaScript it is called ... Object)
var dict = {};   // Huh? {} is a shortcut for "new Object()"

// Add a key named fred with value 42
dict.fred = 42;  // We can do that because "fred" is a constant
                 // and conforms to id rules

// Add a key named 2bob2 with value "twins!"
dict["2bob2"] = "twins!";  // We use the subscript notation because
                           // the key is arbitrary (not id)

// Add an arbitrary dynamic key with a dynamic value
var key = ..., // Insanely complex calculations for the key
    val = ...; // Insanely complex calculations for the value
dict[key] = val;

// Read value of "fred"
val = dict.fred;

// Read value of 2bob2
val = dict["2bob2"];

// Read value of our cool secret key
val = dict[key];

Now let's change values:

// Change the value of fred
dict.fred = "astra";
// The assignment creates and/or replaces key-value pairs

// Change the value of 2bob2
dict["2bob2"] = [1, 2, 3];  // Any legal value can be used

// Change value of our secret key
dict[key] = undefined;
// Contrary to popular beliefs, assigning "undefined" does not remove the key

// Go over all keys and values in our dictionary
for (key in dict) {
  // A for-in loop goes over all properties, including inherited properties
  // Let's use only our own properties
  if (dict.hasOwnProperty(key)) {
    console.log("key = " + key + ", value = " + dict[key]);
  }
}

Deleting values is easy too:

// Let's delete fred
delete dict.fred;
// fred is removed, but the rest is still intact

// Let's delete 2bob2
delete dict["2bob2"];

// Let's delete our secret key
delete dict[key];

// Now dict is empty

// Let's replace it, recreating all original data
dict = {
  fred:    42,
  "2bob2": "twins!"
  // We can't add the original secret key because it was dynamic, but
  // we can only add static keys
  // ...
  // oh well
  temp1:   val
};
// Let's rename temp1 into our secret key:
if (key != "temp1") {
  dict[key] = dict.temp1; // Copy the value
  delete dict.temp1;      // Kill the old key
} else {
  // Do nothing; we are good ;-)
}

Java doesn't have associative arrays like PHP does.

There are various solutions for what you are doing, such as using a Map, but it depends on how you want to look up the information. You can easily write a class that holds all your information and store instances of them in an ArrayList.

public class Foo{
    public String name, fname;

    public Foo(String name, String fname){
        this.name = name;
        this.fname = fname;
    }
}

And then...

List<Foo> foos = new ArrayList<Foo>();
foos.add(new Foo("demo","fdemo"));
foos.add(new Foo("test","fname"));

So you can access them like...

foos.get(0).name;
=> "demo"

Use array_walk_recursive function for multi-denominational array.

array_walk_recursive($data, function (&$v, $k) { 
    if($k == 'transaction_date'){ 
        $v = date('d/m/Y',$v); 
    } 
});

I use the following loop to get the key and value from an associative array

foreach ($array as $key => $value)
{
  echo "<p>$key = $value</p>";
}

You might want to push the object into the array

enter code here

var AssocArray = new Array();

AssocArray.push( "The letter A");

console.log("a = " + AssocArray[0]);

// result: "a = The letter A"

console.log( AssocArray[0]);

JSON.stringify(AssocArray);

It's very straightforward if you have an Underscore.js dependency in your project -

_.omit(myArray, "lastname")

In bash version 4 associative arrays were introduced.

declare -A arr

arr["key1"]=val1

arr+=( ["key2"]=val2 ["key3"]=val3 )

The arr array now contains the three key value pairs. Bash is fairly limited what you can do with them though, no sorting or popping etc.

for key in ${!arr[@]}; do
    echo ${key} ${arr[${key}]}
done

Will loop over all key values and echo them out.

Note: Bash 4 does not come with Mac OS X because of its GPLv3 license; you have to download and install it. For more on that see here

best way is using reference, and not using unset (which make another step to clean memory)

$tab = ['two' => [] ];

solution:

$tab['newname'] = & $tab['two'];

you have one original and one reference with new name.

or if you don't want have two names in one value is good make another tab and foreach on reference

foreach($tab as $key=> & $value) {
    if($key=='two') { 
        $newtab["newname"] = & $tab[$key];
     } else {
        $newtab[$key] = & $tab[$key];
     }
}

Iterration is better on keys than clone all array, and cleaning old array if you have long data like 100 rows +++ etc..

In case someone wants to rename all the keys at once providing a list with the new names:

def rename_keys(dict_, new_keys):
    """
     new_keys: type List(), must match length of dict_
    """

    # dict_ = {oldK: value}
    # d1={oldK:newK,} maps old keys to the new ones:  
    d1 = dict( zip( list(dict_.keys()), new_keys) )

          # d1{oldK} == new_key 
    return {d1[oldK]: value for oldK, value in dict_.items()}

Probably, the fastest, efficient and more generic way is this (you can merge any number of objects and even copy to the first one ->assign):

function object_merge(){
    for (var i=1; i<arguments.length; i++)
       for (var a in arguments[i])
         arguments[0][a] = arguments[i][a];
   return arguments[0];
}

It also allows you to modify the first object as it passed by reference. If you don't want this but want to have a completely new object containing all properties, then you can pass {} as the first argument.

var object1={a:1,b:2};
var object2={c:3,d:4};
var object3={d:5,e:6};
var combined_object=object_merge(object1,object2,object3); 

combined_object and object1 both contain the properties of object1,object2,object3.

var object1={a:1,b:2};
var object2={c:3,d:4};
var object3={d:5,e:6};
var combined_object=object_merge({},object1,object2,object3); 

In this case, the combined_object contains the properties of object1,object2,object3 but object1 is not modified.

Check here: https://jsfiddle.net/ppwovxey/1/

Note: JavaScript objects are passed by reference.

interesting_keys = ('l', 'm', 'n')
subdict = {x: bigdict[x] for x in interesting_keys if x in bigdict}

You can further modify the hput()/hget() interface so that you have named hashes as follows:

hput() {
    eval "$1""$2"='$3'
}

hget() {
    eval echo '${'"$1$2"'#hash}'
}

and then

hput capitals France Paris
hput capitals Netherlands Amsterdam
hput capitals Spain Madrid
echo `hget capitals France` and `hget capitals Netherlands` and `hget capitals Spain`

This lets you define other maps that don't conflict (e.g., 'rcapitals' which does country lookup by capital city). But, either way, I think you'll find that this is all pretty terrible, performance-wise.

If you really want fast hash lookup, there's a terrible, terrible hack that actually works really well. It is this: write your key/values out to a temporary file, one-per line, then use 'grep "^$key"' to get them out, using pipes with cut or awk or sed or whatever to retrieve the values.

Like I said, it sounds terrible, and it sounds like it ought to be slow and do all sorts of unnecessary IO, but in practice it is very fast (disk cache is awesome, ain't it?), even for very large hash tables. You have to enforce key uniqueness yourself, etc. Even if you only have a few hundred entries, the output file/grep combo is going to be quite a bit faster - in my experience several times faster. It also eats less memory.

Here's one way to do it:

hinit() {
    rm -f /tmp/hashmap.$1
}

hput() {
    echo "$2 $3" >> /tmp/hashmap.$1
}

hget() {
    grep "^$2 " /tmp/hashmap.$1 | awk '{ print $2 };'
}

hinit capitals
hput capitals France Paris
hput capitals Netherlands Amsterdam
hput capitals Spain Madrid

echo `hget capitals France` and `hget capitals Netherlands` and `hget capitals Spain`

foreach($test_package_data as $key=>$data ) {

   $category_detail_arr = $test_package_data[$key]['category_detail'];

   foreach( $category_detail_arr as $i=>$value ) {
     $test_package_data[$key]['category_detail'][$i]['count'] = $some_value;////<----Here
   }

}

It is very late but preferably symbols should be used as key:

my_hash = {}
my_hash[:my_key] = 'value'

my_hash.has_key?("my_key")
 => false 
my_hash.has_key?("my_key".to_sym)
 => true 

my_hash2 = {}
my_hash2['my_key'] = 'value'

my_hash2.has_key?("my_key")
 => true 
my_hash2.has_key?("my_key".to_sym)
 => false 

But when creating hash if you pass string as key then it will search for the string in keys.

But when creating hash you pass symbol as key then has_key? will search the keys by using symbol.

If you are using Rails, you can use Hash#with_indifferent_access to avoid this; both hash[:my_key] and hash["my_key"] will point to the same record

I've used Francesco Balena's HashTable class several times in the past when a Collection or Dictionary wasn't a perfect fit and i just needed a HashTable.

before for loop :

$data = array();

then in your loop:

$data[] = array($catagory => $question);

Try using an Object, not an Array:

var test = new Object(); test[2300] = 'Some string';

Associative array in PHP actually considered as a dictionary.

An array in PHP is actually an ordered map. A map is a type that associates values to keys. it can be treated as an array, list (vector), hash table (an implementation of a map), dictionary, collection, stack, queue, and probably more.

<?php
$array = array(
    "foo" => "bar",
    "bar" => "foo",
);

// Using the short array syntax
$array = [
    "foo" => "bar",
    "bar" => "foo",
];
?>

An array is different than a dictionary in that arrays have both an index and a key. Dictionaries only have keys and no index.

several years ago I wrote script library for bash which supported associative arrays among other features (logging, configuration files, extended support for command line argument, generate help, unit testing, etc). The library contains a wrapper for associative arrays and automatically switches to appropriate model (internal for bash4 and emulate for previous versions). It was called shell-framework and hosted at origo.ethz.ch but today the resource is closed. If someone still needs it I can share it with you.

Check out array_merge().

$array3 = array_merge($array1, $array2);

I had the following entries in my /etc/hosts file:

34.228.211.243  registry-1.docker.io
34.205.88.205   auth.docker.io
104.18.121.25   production.cloudflare.docker.com

Just by commenting them out, I fixed the problem.

As to your bonus question, try if (jQuery.inArray(jQuery("input:first").val(), ar) < 0)

Java's Double class has members containing the Min and Max value for the type.

2^-1074 <= x <= (2-2^-52)·2^1023 // where x is the double.

Check out the Min_VALUE and MAX_VALUE static final members of Double.

(some)People will suggest against using floating point types for things where accuracy and precision are critical because rounding errors can throw off calculations by measurable (small) amounts.

May be You are not registering the Controllers. Try below code:

Step 1. Write your own controller factory class ControllerFactory :DefaultControllerFactory by implementing defaultcontrollerfactory in models folder

  public class ControllerFactory :DefaultControllerFactory
    {
    protected override IController GetControllerInstance(RequestContext         requestContext, Type controllerType)
        {
            try
            {
                if (controllerType == null)
                    throw new ArgumentNullException("controllerType");

                if (!typeof(IController).IsAssignableFrom(controllerType))
                    throw new ArgumentException(string.Format(
                        "Type requested is not a controller: {0}",
                        controllerType.Name),
                        "controllerType");

                return MvcUnityContainer.Container.Resolve(controllerType) as IController;
            }
            catch
            {
                return null;
            }

        }
        public static class MvcUnityContainer
        {
            public static UnityContainer Container { get; set; }
        }
    }

Step 2:Regigster it in BootStrap: inBuildUnityContainer method

private static IUnityContainer BuildUnityContainer()
    {
      var container = new UnityContainer();

      // register all your components with the container here
      // it is NOT necessary to register your controllers

      // e.g. container.RegisterType<ITestService, TestService>();    
      //RegisterTypes(container);
      container = new UnityContainer();
      container.RegisterType<IProductRepository, ProductRepository>();


      MvcUnityContainer.Container = container;
      return container;
    }

Step 3: In Global Asax.

protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();

            WebApiConfig.Register(GlobalConfiguration.Configuration);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
            AuthConfig.RegisterAuth();
            Bootstrapper.Initialise();
            ControllerBuilder.Current.SetControllerFactory(typeof(ControllerFactory));

        }

And you are done

Joe Kington's excellent answer is already 4 years old, Matplotlib has incrementally changed (in particular, the introduction of the cycler module) and the new major release, Matplotlib 2.0.x, has introduced stylistic differences that are important from the point of view of the colors used by default.

The color of individual lines

The color of individual lines (as well as the color of different plot elements, e.g., markers in scatter plots) is controlled by the color keyword argument,

plt.plot(x, y, color=my_color)

my_color is either

• a tuple of floats representing RGB or RGBA (as(0.,0.5,0.5)),
• a RGB/RGBA hex string (as "#008080" (RGB) or "#008080A0"),
• a string representation of a float value in [0, 1] inclusive for gray level (e.g., '0.6'),
• a short color name (as "k" for black, possible values in "bgrcmykw"),
• a long color name (as "teal") --- aka HTML color name (in the docs also X11/CSS4 color name),
• a name from the xkcd color survey, prefixed with 'xkcd:' (e.g., 'xkcd:barbie pink'),
• a color from the Tableau Colors in the default 'T10' categorical palette, (e.g., 'tab:blue', 'tab:olive'),
• a reference to a color of the current color cycle (as "C3", i.e., the letter "C" followed by a single digit in "0-9").

The color cycle

By default, different lines are plotted using different colors, that are defined by default and are used in a cyclic manner (hence the name color cycle).

The color cycle is a property of the axes object, and in older releases was simply a sequence of valid color names (by default a string of one character color names, "bgrcmyk") and you could set it as in

my_ax.set_color_cycle(['kbkykrkg'])

(as noted in a comment this API has been deprecated, more on this later).

In Matplotlib 2.0 the default color cycle is ["#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf"], the Vega category10 palette.

_{(the image is a screenshot from https://vega.github.io/vega/docs/schemes/)}

The cycler module: composable cycles

The following code shows that the color cycle notion has been deprecated

In [1]: from matplotlib import rc_params

In [2]: rc_params()['axes.color_cycle']
/home/boffi/lib/miniconda3/lib/python3.6/site-packages/matplotlib/__init__.py:938: UserWarning: axes.color_cycle is deprecated and replaced with axes.prop_cycle; please use the latter.
  warnings.warn(self.msg_depr % (key, alt_key))
Out[2]: 
['#1f77b4', '#ff7f0e', '#2ca02c', '#d62728', '#9467bd',
 '#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf']

Now the relevant property is the 'axes.prop_cycle'

In [3]: rc_params()['axes.prop_cycle']
Out[3]: cycler('color', ['#1f77b4', '#ff7f0e', '#2ca02c', '#d62728', '#9467bd', '#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf'])

Previously, the color_cycle was a generic sequence of valid color denominations, now by default it is a cycler object containing a label ('color') and a sequence of valid color denominations. The step forward with respect to the previous interface is that it is possible to cycle not only on the color of lines but also on other line attributes, e.g.,

In [5]: from cycler import cycler

In [6]: new_prop_cycle = cycler('color', ['k', 'r']) * cycler('linewidth', [1., 1.5, 2.])

In [7]: for kwargs in new_prop_cycle: print(kwargs)
{'color': 'k', 'linewidth': 1.0}
{'color': 'k', 'linewidth': 1.5}
{'color': 'k', 'linewidth': 2.0}
{'color': 'r', 'linewidth': 1.0}
{'color': 'r', 'linewidth': 1.5}
{'color': 'r', 'linewidth': 2.0}

As you have seen, the cycler objects are composable and when you iterate on a composed cycler what you get, at each iteration, is a dictionary of keyword arguments for plt.plot.

You can use the new defaults on a per axes object ratio,

my_ax.set_prop_cycle(new_prop_cycle)

or you can install temporarily the new default

plt.rc('axes', prop_cycle=new_prop_cycle)

or change altogether the default editing your .matplotlibrc file.

Last possibility, use a context manager

with plt.rc_context({'axes.prop_cycle': new_prop_cycle}):
    ...

to have the new cycler used in a group of different plots, reverting to defaults at the end of the context.

The doc string of the cycler() function is useful, but the (not so much) gory details about the cycler module and the cycler() function, as well as examples, can be found in the fine docs.

It's now called rounded-circle as explained here in the BS4 docs

<img src="img/gallery2.JPG" class="rounded-circle">

Demo

This may not be quite what you are looking for but this is what worked for what I'm doing. All of this is after my onCreate:

boilingpointK = (TextView) findViewById(R.id.boilingpointK);

boilingpointK.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if ("Boiling Point K".equals(boilingpointK.getText().toString()))
            boilingpointK.setText("2792");
        else if ("2792".equals(boilingpointK.getText().toString()))
            boilingpointK.setText("Boiling Point K");
    }
});

[Array] $servers = "Server1","server2";
$service='YOUR SERVICE'

foreach($server in $servers)

{
    $srvc = Get-WmiObject -query "SELECT * FROM win32_service  WHERE   name LIKE '$service' " -computername $server  ;
    $res=Write-Output $srvc | Format-Table -AutoSize $server, $fmtMode, $fmtState, $fmtStatus ;  
   $srvc.startservice() 
   $res
}

It is so simple to do it

if you want to use it as host and want to resolve it

If you are using ambassador to any other API gateway for service located in another namespace it's always suggested to use :

            Use : <service name>
            Use : <service.name>.<namespace name>
            Not : <service.name>.<namespace name>.svc.cluster.local

it will be like : servicename.namespacename.svc.cluster.local

this will send request to a particular service inside the namespace you have mention.

example:

kind: Service
apiVersion: v1
metadata:
  name: service
spec:
  type: ExternalName
  externalName: <servicename>.<namespace>.svc.cluster.local

Here replace the <servicename> and <namespace> with the appropriate value.

In Kubernetes, namespaces are used to create virtual environment but all are connect with each other.

Instead of using 2 separate queries, you can use aggregate() in a single query:

Aggregate "$facet" can be fetch more quickly, the Total Count and the Data with skip & limit

    db.collection.aggregate([

      //{$sort: {...}}

      //{$match:{...}}

      {$facet:{

        "stage1" : [ {"$group": {_id:null, count:{$sum:1}}} ],

        "stage2" : [ { "$skip": 0}, {"$limit": 2} ]
  
      }},
     
     {$unwind: "$stage1"},
  
      //output projection
     {$project:{
        count: "$stage1.count",
        data: "$stage2"
     }}

 ]);

output as follows:-

[{
     count: 50,
     data: [
        {...},
        {...}
      ]
 }]

Also, have a look at https://docs.mongodb.com/manual/reference/operator/aggregation/facet/

More of an addendum. I did repro the experiment using the latest Java 8 JVM from IBM:

java version "1.8.0_191"
Java(TM) 2 Runtime Environment, Standard Edition (IBM build 1.8.0_191-b12 26_Oct_2018_18_45 Mac OS X x64(SR5 FP25))
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)

And this shows very similar results:

0.374653912 s
n = 119860736
0.447778698 s
n = 119860736

(second results using 2 * i * i).

Interestingly enough, when running on the same machine, but using Oracle Java:

Java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

results are on average a bit slower:

0.414331815 s
n = 119860736
0.491430656 s
n = 119860736

Long story short: even the minor version number of HotSpot matter here, as subtle differences within the JIT implementation can have notable effects.

 WebElement p= driver.findElement(By.id("your id name"));
 p.sendKeys(Keys.chord(Keys.CONTROL, "a"), "55");

Steve McConnell gives an interesting statistic in his book "Software Estimation" (p62 Table 5.2) He distinguish between project types (Avionic, Business, Telco, etc) and project size 10 kLOC, 100 kLOC, 250 kLOC. The numbers are given for each combination in LOC/StaffMonth. E.G. Avionic: 200, 50, 40 Intranet Systems (Internal): 4000, 800, 600 Embedded Systems: 300, 70, 60

Which means: eg. for Avionic 250-kLOC project there are 40 (LOC/Month) / 22 (Days/Month) == <2LOC/day!

I think you're supposed to place clearApplicationData() before the super.OnDestroy().

Your app can't process any methods when it has been shut down.

If you wirte to a .csv file in C++ - you should use the syntax of :

myfile <<" %s; %s; %d", string1, string2, double1 <<endl;

This will write the three variables (string 1&2 and double1) into separate columns and leave an empty row below them. In excel the ; means the new row, so if you want to just take a new row - you can alos write a simple ";" before writing your new data into the file. If you don't want to have an empty row below - you should delete the endl and use the:

myfile.open("result.csv", std::ios::out | std::ios::app);

syntax when opening the .csv file (example the result.csv). In this way next time you write something into your result.csv file - it will write it into a new row directly below the last one - so you can easily manage a for cycle if you would like to.

You need 1.7 JDK installed on your system. Add a system variable with:

• name: ANDROID_STUDIO_JDK

• path: your JDK path (for example, C:\Program Files\Java\jdk1.7.0_21)

  • See more at FIX: Android Studio - Installation Issues on Windows 7 | ERROR: cannot start Android Studio. No JDK found.

Syntax change in swift 3.0

alert.addAction(UIAlertAction(title: "Okay",
                style: .default,
                handler: { _ in print("Foo") } ))

C++ provides a good mechanism to manage the life time of an object though class/struct constructs. This is one of the best features of C++ over other languages.

When you have member variables exposed through ref or pointer it violates the encapsulation in principle. This idiom enables the consumer of the class to change the state of an object of A without it(A) having any knowledge or control of it. It also enables the consumer to hold on to a ref/pointer to A's internal state, beyond the life time of the object of A. This is bad design. Instead the class could be refactored to hold a ref/pointer to the shared object (not own it) and these could be set using the constructor (Mandate the life time rules). The shared object's class may be designed to support multithreading/concurrency as the case may apply.

You can apply the style via javascript. This is the Js code below that applies the filter to the image with the ID theImage.

function invert(){
document.getElementById("theImage").style.filter="invert(100%)";
}

And this is the

<img id="theImage" class="img-responsive" src="http://i.imgur.com/1H91A5Y.png"></img>

Now all you need to do is call invert() We do this when the image is clicked.

function invert(){_x000D_
document.getElementById("theImage").style.filter="invert(100%)";_x000D_
}

<h4> Click image to invert </h4>_x000D_
_x000D_
<img id="theImage" class="img-responsive" src="http://i.imgur.com/1H91A5Y.png" onClick="invert()" ></img>

We use this on our website

As you see in an error UseCalls.java:27: error: cannot find symbol return String.parseString(input); there is no method parseString in String class. There is no need to parse it as long as JOptionPane.showInputDialog(prompt); already returns a string.

The R in REST stands for resource

(Which isn't true, because it stands for Representational, but it's a good trick to remember the importance of Resources in REST).

About PUT /groups/api/v1/groups/{group id}/status/activate: you are not updating an "activate". An "activate" is not a thing, it's a verb. Verbs are never good resources. A rule of thumb: if the action, a verb, is in the URL, it probably is not RESTful.

What are you doing instead? Either you are "adding", "removing" or "updating" an activation on a Group, or if you prefer: manipulating a "status"-resource on a Group. Personally, I'd use "activations" because they are less ambiguous than the concept "status": creating a status is ambiguous, creating an activation is not.

• POST /groups/{group id}/activation Creates (or requests the creation of) an activation.
• PATCH /groups/{group id}/activation Updates some details of an existing activation. Since a group has only one activation, we know what activation-resource we are referring to.
• PUT /groups/{group id}/activation Inserts-or-replaces the old activation. Since a group has only one activation, we know what activation-resource we are referring to.
• DELETE /groups/{group id}/activation Will cancel, or remove the activation.

This pattern is useful when the "activation" of a Group has side-effects, such as payments being made, mails being sent and so on. Only POST and PATCH may have such side-effects. When e.g. a deletion of an activation needs to, say, notify users over mail, DELETE is not the right choice; in that case you probably want to create a deactivation resource: POST /groups/{group_id}/deactivation.

It is a good idea to follow these guidelines, because this standard contract makes it very clear for your clients, and all the proxies and layers between the client and you, know when it is safe to retry, and when not. Let's say the client is somewhere with flaky wifi, and its user clicks on "deactivate", which triggers a DELETE: If that fails, the client can simply retry, until it gets a 404, 200 or anything else it can handle. But if it triggers a POST to deactivation it knows not to retry: the POST implies this.
Any client now has a contract, which, when followed, will protect against sending out 42 emails "your group has been deactivated", simply because its HTTP-library kept retrying the call to the backend.

Updating a single attribute: use PATCH

PATCH /groups/{group id}

In case you wish to update an attribute. E.g. the "status" could be an attribute on Groups that can be set. An attribute such as "status" is often a good candidate to limit to a whitelist of values. Examples use some undefined JSON-scheme:

PATCH /groups/{group id} { "attributes": { "status": "active" } }
response: 200 OK

PATCH /groups/{group id} { "attributes": { "status": "deleted" } }
response: 406 Not Acceptable

Replacing the resource, without side-effects use PUT.

PUT /groups/{group id}

In case you wish to replace an entire Group. This does not necessarily mean that the server actually creates a new group and throws the old one out, e.g. the ids might remain the same. But for the clients, this is what PUT can mean: the client should assume he gets an entirely new item, based on the server's response.

The client should, in case of a PUT request, always send the entire resource, having all the data that is needed to create a new item: usually the same data as a POST-create would require.

PUT /groups/{group id} { "attributes": { "status": "active" } }
response: 406 Not Acceptable

PUT /groups/{group id} { "attributes": { "name": .... etc. "status": "active" } }
response: 201 Created or 200 OK, depending on whether we made a new one.

A very important requirement is that PUT is idempotent: if you require side-effects when updating a Group (or changing an activation), you should use PATCH. So, when the update results in e.g. sending out a mail, don't use PUT.

If you get a python error like this:

AttributeError: 'str' object has no attribute 'some_method'

You probably poisoned your object accidentally by overwriting your object with a string.

How to reproduce this error in python with a few lines of code:

#!/usr/bin/env python
import json
def foobar(json):
    msg = json.loads(json)

foobar('{"batman": "yes"}')

Run it, which prints:

AttributeError: 'str' object has no attribute 'loads'

But change the name of the variablename, and it works fine:

#!/usr/bin/env python
import json
def foobar(jsonstring):
    msg = json.loads(jsonstring)

foobar('{"batman": "yes"}')

This error is caused when you tried to run a method within a string. String has a few methods, but not the one you are invoking. So stop trying to invoke a method which String does not define and start looking for where you poisoned your object.

I want to suggest a common solution for those requirements, maybe it is a use for you: AutoIt. With that program, you can write scripts on top of any window like Putty and execute all commands you want to (like button pressing or mouse clicking in textboxes or buttons).

This way you can emulate all steps you are always doing with Putty.

What worked for me was to write a console app separately that did what I wanted it to do, compile it down to an exe, and then do Process.Start("MyConsoleapp.exe","Arguments")

Overall

SELECT
       COUNT(DISTINCT `site_id`) as distinct_sites
  FROM `cp_visits`
 WHERE ts >= DATE_SUB(NOW(), INTERVAL 1 DAY)

Or per site

  SELECT
         `site_id` as site,
         COUNT(DISTINCT `user_id`) as distinct_users_per_site
    FROM `cp_visits`
   WHERE ts >= DATE_SUB(NOW(), INTERVAL 1 DAY)
GROUP BY `site_id`

Having the time column in the result doesn't make sense - since you are aggregating the rows, showing one particular time is irrelevant, unless it is the min or max you are after.

You can also open a required file through a prompt, This helps when you want to select file from different path and different file.

Sub openwb()
Dim wkbk As Workbook
Dim NewFile As Variant

NewFile = Application.GetOpenFilename("microsoft excel files (*.xlsm*), *.xlsm*")

If NewFile <> False Then
Set wkbk = Workbooks.Open(NewFile)
End If
End Sub

You may try;

$('#save_value').click(function(){
    var final = '';
    $('.ads_Checkbox:checked').each(function(){        
        var values = $(this).val();
        final += values;
    });
    alert(final);
});

This will return all checkbox values in a single instance.

Here is a working Live Demo.

TLDR:

1. Rebooting both application and DB servers is the quickest fix where data volume, network settings and code haven't changed. We always do so as a rule
2. May be indicator of failing hard-drive that needs replacement - check system notifications

I have often encountered this error for various reasons and have had various solutions, including:

1. refactoring my code to use SqlBulkCopy
2. increasing Timeout values, as stated in various answers or checking for underlying causes (may not be data related)
3. Connection Timeout (Default 15s) - How long it takes to wait for a connection to be established with the SQL server before terminating - TCP/PORT related - can go through a troubleshooting checklist (very handy MSDN article)
4. Command Timeout (Default 30s) - How long it takes to wait for the execution of a query - Query execution/network traffic related - also has a troubleshooting process (another very handy MSDN article)
5. Rebooting of the server(s) - both application & DB Server (if separate) - where code and data haven't changed, environment must have changed - First thing you must do. Typically caused by patches (operating system, .Net Framework or SQL Server patches or updates). Particularly if timeout exception appears as below (even if we do not use Azure):
   • System.Data.Entity.Core.EntityException: An exception has been raised that is likely due to a transient failure. If you are connecting to a SQL Azure database consider using SqlAzureExecutionStrategy. ---> System.Data.Entity.Core.EntityCommandExecutionException: An error occurred while executing the command definition. See the inner exception for details. ---> System.Data.SqlClient.SqlException: A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The semaphore timeout period has expired.) ---> System.ComponentModel.Win32Exception: The semaphore timeout period has expired

Take a look at java.text.DateFormat. Easier to use (with a bit less power) is the derived class, java.text.SimpleDateFormat

And here is a good intro to Java internationalization: http://java.sun.com/docs/books/tutorial/i18n/index.html (the "Formatting" section addressing your problem, and more).

I had this exact problem and I solved it this way:

library(openxlsx) # loads library and doesn't require Java installed

your_df_list <- c("df1", "df2", ..., "dfn")

for(name in your_df_list){
  write.xlsx(x = get(name), 
             file = "your_spreadsheet_name.xlsx", 
             sheetName = name)
}

That way you won't have to create a very long list manually if you have tons of dataframes to write to Excel.

As Pablo said, you need to use find instead of grep, but there's no need to pipe find to grep. find has that functionality built in:

find . -regex 'f[[:alnum:]]\.frm'

find is a very powerful program for searching for files by name and supports searching by file type, depth limiting, combining different search terms with boolean operations, and executing arbitrary commands on found files. See the find man page for more information.

For react version 16.6.3, we use super(props) to initialize state element name : this.props.name

constructor(props){
    super(props);        
}
state = {
  name:this.props.name 
    //otherwise not defined
};

What happens with bittorrent and a DHT is that at the beginning bittorrent uses information embedded in the torrent file to go to either a tracker or one of a set of nodes from the DHT. Then once it finds one node, it can continue to find others and persist using the DHT without needing a centralized tracker to maintain it.

The original information bootstraps the later use of the DHT.

From the site Enrique posted:

window.history.forward(1);
document.attachEvent("onkeydown", my_onkeydown_handler);
function my_onkeydown_handler() {
    switch (event.keyCode) {
        case 116 : // 'F5'
            event.returnValue = false;
            event.keyCode = 0;
            window.status = "We have disabled F5";
            break;
    }
}

Here is a situation where there is definitely a need for inheritance for static fields and methods:

abstract class Animal
{
  protected static string[] legs;

  static Animal() {
    legs=new string[0];
  }

  public static void printLegs()
  {
    foreach (string leg in legs) {
      print(leg);
    }
  }
}


class Human: Animal
{
  static Human() {
    legs=new string[] {"left leg", "right leg"};
  }
}


class Dog: Animal
{
  static Dog() {
    legs=new string[] {"left foreleg", "right foreleg", "left hindleg", "right hindleg"};
  }
}


public static void main() {
  Dog.printLegs();
  Human.printLegs();
}


//what is the output?
//does each subclass get its own copy of the array "legs"?

Input: 0 0.1 1000

=FIXED(E5,2)

Output: 0.00 0.10 1,000.00

=TEXT(E5,"0.00")

Output: 0.00 0.10 1000.00

Note: As you can see FIXED add a coma after a thousand, where TEXT does not.

I needed an immutable move method (one that didn't change the original array), so I adapted @Reid's accepted answer to simply use Object.assign to create a copy of the array before doing the splice.

Array.prototype.immutableMove = function (old_index, new_index) {
  var copy = Object.assign([], this);
  if (new_index >= copy.length) {
      var k = new_index - copy.length;
      while ((k--) + 1) {
          copy.push(undefined);
      }
  }
  copy.splice(new_index, 0, copy.splice(old_index, 1)[0]);
  return copy;
};

Here is a jsfiddle showing it in action.

For anyone who, like me, reads this because they need to update a giant legacy project to 5.6: as the answers here point out, there is no quick fix: you really do need to find each occurrence of the problem manually, and fix it.

The most convenient way I found to find all problematic lines in a project (short of using a full-blown static code analyzer, which is very accurate but I don't know any that take you to the correct position in the editor right away) was using Visual Studio Code, which has a nice PHP linter built in, and its search feature which allows searching by Regex. (Of course, you can use any IDE/Code editor for this that does PHP linting and Regex searches.)

Using this regex:

^(?!.*function).*(\&\$)

it is possible to search project-wide for the occurrence of &$ only in lines that are not a function definition.

This still turns up a lot of false positives, but it does make the job easier.

VSCode's search results browser makes walking through and finding the offending lines super easy: you just click through each result, and look out for those that the linter underlines red. Those you need to fix.

Be warned, each time the file is opened with this method the old data in the file is destroyed regardless of 'w+' or just 'w'.

import os

with open("file.txt", 'w+') as f:
    f.write("file is opened for business")

Protect by:

$ip=$_SERVER['REMOTE_ADDER'];
$_SESSEION['ip']=$ip;

May not be the most efficient, requires an extra pass to remove duplicates.

Functional implementation :

arr = np.array(['a','a','b','b','b','c'])
print(set(map(lambda x  : (x , list(arr).count(x)) , arr)))

returns :

{('c', 1), ('b', 3), ('a', 2)}

or return as dict :

print(dict(map(lambda x  : (x , list(arr).count(x)) , arr)))

returns :

{'b': 3, 'c': 1, 'a': 2}

I don't know that much JQuery but I've heard it allows to fire native events with this syntax.

$(document).ready(function(){

    $('#countrylist').change(function(e){
       // Your event handler
    });

    // And now fire change event when the DOM is ready
    $('#countrylist').trigger('change');
});

You must declare the change event handler before calling trigger() or change() otherwise it won't be fired. Thanks for the mention @LenielMacaferi.

More information here.

As strings are immutable in Python, just create a new string which includes the value at the desired index.

Assuming you have a string s, perhaps s = "mystring"

You can quickly (and obviously) replace a portion at a desired index by placing it between "slices" of the original.

s = s[:index] + newstring + s[index + 1:]

You can find the middle by dividing your string length by 2 len(s)/2

If you're getting mystery inputs, you should take care to handle indices outside the expected range

def replacer(s, newstring, index, nofail=False):
    # raise an error if index is outside of the string
    if not nofail and index not in range(len(s)):
        raise ValueError("index outside given string")

    # if not erroring, but the index is still not in the correct range..
    if index < 0:  # add it to the beginning
        return newstring + s
    if index > len(s):  # add it to the end
        return s + newstring

    # insert the new string between "slices" of the original
    return s[:index] + newstring + s[index + 1:]

This will work as

replacer("mystring", "12", 4)
'myst12ing'

In Kibana 6.5, you can generate CSV under the Share Tab -> CSV Reports.

The request will be queued. Once the CSV is generated, it will be available for download under Management -> Reporting

A key issue here is that this loop iterates over the rows (1st dimension) of B:

In [258]: B
Out[258]: 
array([[ 0,  1,  2],
       [ 3,  4,  5],
       [ 6,  7,  8],
       [ 9, 10, 11]])
In [259]: for b in B:
     ...:     print(b,'=>',end='')
     ...:     b += 1
     ...:     print(b)
     ...:     
[0 1 2] =>[1 2 3]
[3 4 5] =>[4 5 6]
[6 7 8] =>[7 8 9]
[ 9 10 11] =>[10 11 12]

Thus the += is acting on a mutable object, an array.

This is implied in the other answers, but easily missed if your focus is on the a = a+1 reassignment.

I could also make an in-place change to b with [:] indexing, or even something fancier, b[1:]=0:

In [260]: for b in B:
     ...:     print(b,'=>',end='')
     ...:     b[:] = b * 2

[1 2 3] =>[2 4 6]
[4 5 6] =>[ 8 10 12]
[7 8 9] =>[14 16 18]
[10 11 12] =>[20 22 24]

Of course with a 2d array like B we usually don't need to iterate on the rows. Many operations that work on a single of B also work on the whole thing. B += 1, B[1:] = 0, etc.

this code once i write for just explain onChange event of select you can save this code as html and see output it works.and easy to understand for you.

<html>
    <head>
        <title>Register</title>
    </head>
    <body>
    <script>
        function show(){
            var option = document.getElementById("category").value;
            if(option == "Student")
                  {
                        document.getElementById("enroll1").style.display="block";
                  }
            if(option == "Parents")
                  {
                        document.getElementById("enroll1").style.display="none";
                  }
            if(option == "Guardians")
                  {
                        document.getElementById("enroll1").style.display="none";
                  }
        }
    </script>
            <form action="#" method="post">
                <table>
                    <tr>
                        <td><label>Name </label></td>
                        <td><input type="text" id="name" size=20 maxlength=20 value=""></td>
                    </tr>
                    <tr style="display:block;" id="enroll1">
                        <td><label>Enrollment No. </label></td>
                        <td><input type="number" id="enroll" style="display:block;" size=20 maxlength=12 value=""></td>
                    </tr>
                    <tr>
                        <td><label>Email </label></td>
                        <td><input type="email" id="emailadd" size=20 maxlength=25 value=""></td>
                    </tr>
                    <tr>
                        <td><label>Mobile No. </label></td>
                        <td><input type="number" id="mobile" size=20 maxlength=10 value=""></td>
                    </tr>
                    <tr>
                        <td><label>Address</label></td>
                        <td><textarea rows="2" cols="20"></textarea></td>
                    </tr>
                    <tr >
                        <td><label>Category</label></td>
                        <td><select id="category" onchange="show()">    <!--onchange show methos is call-->
                                <option value="Student">Student</option>
                                <option value="Parents">Parents</option>
                                <option value="Guardians">Guardians</option>
                            </select>
                        </td>
                    </tr>
                </table><br/>
            <input type="submit" value="Sign Up">
        </form>
    </body>
</html>

Try this to Change content of div using jQuery.

See more @ Change content of div using jQuery

$(document).ready(function(){
    $("#Textarea").keyup(function(){
        // Getting the current value of textarea
        var currentText = $(this).val();

        // Setting the Div content
        $(".output").text(currentText);
    });
});

If you need the path and thedomain for each cookie, which get_dict() is not exposes, you can parse the cookies manually, for instance:

[
    {'name': c.name, 'value': c.value, 'domain': c.domain, 'path': c.path}
    for c in session.cookies
]

Doing an static import of the GestureTypes and then using the valuesOf() method could make it look much cleaner:

enum GestureTypes{ROCK,PAPER,SCISSORS};

and

import static com.example.GestureTypes.*;
public class GestureFactory {

    public static Gesture getInstance(final String gesture) {
        if (ROCK == valueOf(gesture))
            //do somthing
        if (PAPER == valueOf(gesture))
            //do somthing
    }
}

Just to add one case to unutbu's list.

One of the biggest practical differences for me of numpy ndarrays compared to numpy matrices or matrix languages like matlab, is that the dimension is not preserved in reduce operations. Matrices are always 2d, while the mean of an array, for example, has one dimension less.

For example demean rows of a matrix or array:

with matrix

>>> m = np.mat([[1,2],[2,3]])
>>> m
matrix([[1, 2],
        [2, 3]])
>>> mm = m.mean(1)
>>> mm
matrix([[ 1.5],
        [ 2.5]])
>>> mm.shape
(2, 1)
>>> m - mm
matrix([[-0.5,  0.5],
        [-0.5,  0.5]])

with array

>>> a = np.array([[1,2],[2,3]])
>>> a
array([[1, 2],
       [2, 3]])
>>> am = a.mean(1)
>>> am.shape
(2,)
>>> am
array([ 1.5,  2.5])
>>> a - am #wrong
array([[-0.5, -0.5],
       [ 0.5,  0.5]])
>>> a - am[:, np.newaxis]  #right
array([[-0.5,  0.5],
       [-0.5,  0.5]])

I also think that mixing arrays and matrices gives rise to many "happy" debugging hours. However, scipy.sparse matrices are always matrices in terms of operators like multiplication.

If you are at the root of your working directory, you can do git checkout -- . to check-out all files in the current HEAD and replace your local files.

You can also do git reset --hard to reset your working directory and replace all changes (including the index).

Use <property name="build.sysclasspath" value="last"/> in your build.xml file

For more details search includeAntRuntime in Ant javac

Other possible values could be found here

open a terminal and run this command xhost +. This commands needs to be run every time you restart your machine. If everything works fine may be you can add this to startup commands

Also make sure in your /etc/environment file there is a line

export DISPLAY=:0.0 

And then, run your tests to see if your issue is resolved.

All please note the comment from sardathrion below before using this.

You can pass all your optional arguments in an object as the first argument. The second argument is your callback. Now you can accept as many arguments as you want in your first argument object, and make it optional like so:

function my_func(op, cb) {
    var options = (typeof arguments[0] !== "function")? arguments[0] : {},
        callback = (typeof arguments[0] !== "function")? arguments[1] : arguments[0];

    console.log(options);
    console.log(callback);
}

If you call it without passing the options argument, it will default to an empty object:

my_func(function () {});
=> options: {}
=> callback: function() {}

If you call it with the options argument you get all your params:

my_func({param1: 'param1', param2: 'param2'}, function () {});
=> options: {param1: "param1", param2: "param2"}
=> callback: function() {}

This could obviously be tweaked to work with more arguments than two, but it get's more confusing. If you can just use an object as your first argument then you can pass an unlimited amount of arguments using that object. If you absolutely need more optional arguments (e.g. my_func(arg1, arg2, arg3, ..., arg10, fn)), then I would suggest using a library like ArgueJS. I have not personally used it, but it looks promising.

I followed the answers by @wize and @mdelolmo and I got the solution. Thanks Tons. But, I tuned these solutions a little bit to improve the memory consumption.

Problems I observed:

They save the instance of Fragment which is replaced. In my case, it is a Fragment which holds MapView and I thought its costly. So, I am maintaining the FragmentPagerPositionChanged (POSITION_NONE or POSITION_UNCHANGED) instead of Fragment itself.

Here is my implementation.

  public static class DemoCollectionPagerAdapter extends FragmentStatePagerAdapter {

    private SwitchFragListener mSwitchFragListener;
    private Switch mToggle;
    private int pagerAdapterPosChanged = POSITION_UNCHANGED;
    private static final int TOGGLE_ENABLE_POS = 2;


    public DemoCollectionPagerAdapter(FragmentManager fm, Switch toggle) {
        super(fm);
        mToggle = toggle;

        mSwitchFragListener = new SwitchFragListener();
        mToggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                mSwitchFragListener.onSwitchToNextFragment();
            }
        });
    }

    @Override
    public Fragment getItem(int i) {
        switch (i)
        {
            case TOGGLE_ENABLE_POS:
                if(mToggle.isChecked())
                {
                    return TabReplaceFragment.getInstance();
                }else
                {
                    return DemoTab2Fragment.getInstance(i);
                }

            default:
                return DemoTabFragment.getInstance(i);
        }
    }

    @Override
    public int getCount() {
        return 5;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return "Tab " + (position + 1);
    }

    @Override
    public int getItemPosition(Object object) {

        //  This check make sures getItem() is called only for the required Fragment
        if (object instanceof TabReplaceFragment
                ||  object instanceof DemoTab2Fragment)
            return pagerAdapterPosChanged;

        return POSITION_UNCHANGED;
    }

    /**
     * Switch fragments Interface implementation
     */
    private final class SwitchFragListener implements
            SwitchFragInterface {

        SwitchFragListener() {}

        public void onSwitchToNextFragment() {

            pagerAdapterPosChanged = POSITION_NONE;
            notifyDataSetChanged();
        }
    }

    /**
     * Interface to switch frags
     */
    private interface SwitchFragInterface{
        void onSwitchToNextFragment();
    }
}

Demo link here.. https://youtu.be/l_62uhKkLyM

For demo purpose, used 2 fragments TabReplaceFragment and DemoTab2Fragment at position two. In all the other cases I'm using DemoTabFragment instances.

Explanation:

I'm passing Switch from Activity to the DemoCollectionPagerAdapter. Based on the state of this switch we will display correct fragment. When the switch check is changed, I'm calling the SwitchFragListener's onSwitchToNextFragment method, where I'm changing the value of pagerAdapterPosChanged variable to POSITION_NONE. Check out more about POSITION_NONE. This will invalidate the getItem and I have logics to instantiate the right fragment over there. Sorry, if the explanation is a bit messy.

Once again big thanks to @wize and @mdelolmo for the original idea.

Hope this is helpful. :)

Let me know if this implementation has any flaws. That will be greatly helpful for my project.

You could use a stl map container....

typedef map<Errors, string> ErrorMap;

ErrorMap m;
m.insert(ErrorMap::value_type(ErrorA, "ErrorA"));
m.insert(ErrorMap::value_type(ErrorB, "ErrorB"));
m.insert(ErrorMap::value_type(ErrorC, "ErrorC"));

Errors error = ErrorA;

cout << m[error] << endl;

I tried the above methods but I got the "macro cannot be found" error. This is final code that worked!

Option Explicit

Dim xlApp, xlBook

Set xlApp = CreateObject("Excel.Application")
xlApp.Visible = True

  ' Import Add-Ins
xlApp.Workbooks.Open "C:\<pathOfXlaFile>\MyMacro.xla"
xlApp.AddIns("MyMacro").Installed = True

'
Open Excel workbook
Set xlBook = xlApp.Workbooks.Open("<pathOfXlsFile>\MyExcel.xls", 0, True)

' Run Macro
xlApp.Run "Sheet1.MyMacro"

xlBook.Close
xlApp.Quit

Set xlBook = Nothing
Set xlApp = Nothing

WScript.Quit

In my case, MyMacro happens to be under Sheet1, thus Sheet1.MyMacro.

startService(new Intent(this, MyService.class));

Just writing this line was not sufficient for me. Service still did not work. Everything had worked only after registering service at manifest

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >

    ...

    <service
        android:name=".MyService"
        android:label="My Service" >
    </service>
</application>

find "${search_dir}" "${work_dir}" -mindepth 1 -maxdepth 1 -type f -print0 | xargs -0 -I {} echo "{}"

The two common approaches are to submit the form to an invisible iframe, or to use a Flash control such as YUI Uploader. You could also use Java instead of Flash, but this has a narrower install base.

(Shame about the layout table in the first example)

Several ways to do so, here are some possible one-line approaches:

2. Use getch() (need #include <conio.h>).

3. Use getchar() (expected for Enter, need #include <iostream>).

4. Use cin.get() (expected for Enter, need #include <iostream>).

5. Use system("pause") (need #include <iostream>).

   PS: This method will also print Press any key to continue . . . on the screen. (seems perfect choice for you :))

Edit: As discussed here, There is no completely portable solution for this. Question 19.1 of the comp.lang.c FAQ covers this in some depth, with solutions for Windows, Unix-like systems, and even MS-DOS and VMS.

Imho this is a flaw in many c compilers. I know for a fact that the compilers i worked with do not store a "static const"variable at an adress but replace the use in the code by the very constant. This can be verified as you will get the same checksum for the produced code when you use a preprocessors #define directive and when you use a static const variable.

Either way you should use static const variables instead of #defines whenever possible as the static const is type safe.

You can get it with:

var html = new System.Net.WebClient().DownloadString(siteUrl)

this code probable help you .

<iframe src="" onload="this.width=screen.width;this.height=screen.height;">

<input class="button" type="button" onclick="window.location.replace('your_url')" value="Cancel" />

Maybe not THE answer, but it's definitely AN answer.

If nothing else is working for you, go the nuclear option: Close IDEA and delete the ".../.IntelliJIdea/system" directory using your local file system tools.

The .IntelliJIdea directory is usually found in your home directory. Your IDE configuration is in the ".../.IntelliJIdea/config" directory, so it should be fine.

Obviously, this is not the "IDEA" way to do it and would be completely unsupported by JetBrains. Also - I don't use Android Studio so I dunno if this will cause problems, but there you go.

It's worked for me before when I've had problems getting IDEA to start and nothing else works to get me going. Maybe back up your entire .IntelliJIdea directory if you have a morbid fear of losing all your work >.<

If I understand the question correctly, you want to update a document with the contents of another document, but only the fields that are not already present, and completely ignore the fields that are already set (even if to another value).

There is no way to do that in a single command.

You have to query the document first, figure out what you want to $set and then update it (using the old values as a matching filter to make sure you don't get concurrent updates in between).

Another reading of your question would be that you are happy with $set, but do not want to explicitly set all fields. How would you pass in the data then?

You know you can do the following:

db.collection.update(  { _id:...} , { $set: someObjectWithNewData } 

This will work in SQL Server 2008.

select  top 100 ROW_NUMBER() OVER (ORDER BY tmp.FirstName) ,* from tmp

Cheers

.* 

Big Jump forgot about line breaks, blanks and control characters.

International postal codes are a kind of halting problem.

If you have resource with woff extension and getting error then add following code in your web.config application will help to fix.

<system.webServer>
<staticContent>
   <mimeMap fileExtension=".woff" mimeType="application/x-font-woff" />
</staticContent>
</system.webServer>

For Resources like JavaScript or CSS not found then provide the path of adding link or script in following way

<link ref="@(Url.Content("path of css"))" rel="stylesheet">

<script src="@(Url.Content("path of js"))" type="text/javascript"></script>

I make an alternative that the user don’t need to know the values, the system get and use variables to update.

--Atualizando sequence da tabela SIGA_TRANSACAO, pois está desatualizada
DECLARE
 actual_sequence_number INTEGER;
 max_number_from_table INTEGER;
 difference INTEGER;
BEGIN
 SELECT [nome_da_sequence].nextval INTO actual_sequence_number FROM DUAL;
 SELECT MAX([nome_da_coluna]) INTO max_number_from_table FROM [nome_da_tabela];
 SELECT (max_number_from_table-actual_sequence_number) INTO difference FROM DUAL;
IF difference > 0 then
 EXECUTE IMMEDIATE CONCAT('alter sequence [nome_da_sequence] increment by ', difference);
 --aqui ele puxa o próximo valor usando o incremento necessário
 SELECT [nome_da_sequence].nextval INTO actual_sequence_number from dual;
--aqui volta o incremento para 1, para que futuras inserções funcionem normalmente
 EXECUTE IMMEDIATE 'ALTER SEQUENCE [nome_da_sequence] INCREMENT by 1';
 DBMS_OUTPUT.put_line ('A sequence [nome_da_sequence] foi atualizada.');
ELSE
 DBMS_OUTPUT.put_line ('A sequence [nome_da_sequence] NÃO foi atualizada, já estava OK!');
END IF;
END;

The most portable regex would be ^[ \t\n]*$ to match an empty string (note that you would need to replace \t and \n with tab and newline accordingly) and [^ \n\t] to match a non-whitespace string.

You are replacing the starting tag and then putting that back in innerHTML, so the code will be invalid. Make all the replacements before you put the code back in the element:

var html = strMessage1.innerHTML;
html = html.replace( /aaaaaa./g,'<a href=\"http://www.google.com/');
html = html.replace( /.bbbbbb/g,'/world\">Helloworld</a>');
strMessage1.innerHTML = html;

Inside my UIViewController derived class, I am using the following inside viewDidLoad:

UIBarButtonItem *flipButton = [[UIBarButtonItem alloc] 
                               initWithTitle:@"Flip"                                            
                               style:UIBarButtonItemStyleBordered 
                               target:self 
                               action:@selector(flipView:)];
self.navigationItem.rightBarButtonItem = flipButton;
[flipButton release];

This adds a button to the right hand side with the title Flip, which calls the method:

-(IBAction)flipView

This looks very much like you #3, but it is working within my code.

Query to check percentage "usage" of AUTO_INCREMENT for all tables of one given schema (except columns with type bigint unsigned):

SELECT 
  c.TABLE_NAME,
  c.COLUMN_TYPE,
  c.MAX_VALUE,
  t.AUTO_INCREMENT,
  IF (c.MAX_VALUE > 0, ROUND(100 * t.AUTO_INCREMENT / c.MAX_VALUE, 2), -1) AS "Usage (%)" 
FROM 
  (SELECT 
     TABLE_SCHEMA,
     TABLE_NAME,
     COLUMN_TYPE,
     CASE 
        WHEN COLUMN_TYPE LIKE 'tinyint(1)' THEN 127
        WHEN COLUMN_TYPE LIKE 'tinyint(1) unsigned' THEN 255
        WHEN COLUMN_TYPE LIKE 'smallint(%)' THEN 32767
        WHEN COLUMN_TYPE LIKE 'smallint(%) unsigned' THEN 65535
        WHEN COLUMN_TYPE LIKE 'mediumint(%)' THEN 8388607
        WHEN COLUMN_TYPE LIKE 'mediumint(%) unsigned' THEN 16777215
        WHEN COLUMN_TYPE LIKE 'int(%)' THEN 2147483647
        WHEN COLUMN_TYPE LIKE 'int(%) unsigned' THEN 4294967295
        WHEN COLUMN_TYPE LIKE 'bigint(%)' THEN 9223372036854775807
        WHEN COLUMN_TYPE LIKE 'bigint(%) unsigned' THEN 0
        ELSE 0
     END AS "MAX_VALUE" 
   FROM 
     INFORMATION_SCHEMA.COLUMNS
     WHERE EXTRA LIKE '%auto_increment%'
   ) c

   JOIN INFORMATION_SCHEMA.TABLES t ON (t.TABLE_SCHEMA = c.TABLE_SCHEMA AND t.TABLE_NAME = c.TABLE_NAME)

WHERE
 c.TABLE_SCHEMA = 'YOUR_SCHEMA' 
ORDER BY
 `Usage (%)` DESC;

You may want to use:

SELECT Name, 'Unpaid' AS Status FROM table;

The SELECT clause syntax, as defined in MSDN: SELECT Clause (Transact-SQL), is as follows:

SELECT [ ALL | DISTINCT ]
[ TOP ( expression ) [ PERCENT ] [ WITH TIES ] ] 
<select_list> 

Where the expression can be a constant, function, any combination of column names, constants, and functions connected by an operator or operators, or a subquery.

ALTER TABLE `table_name` AUTO_INCREMENT=1

Why one want to use it ?

To reduce the memory of the structure

Why one should not use it ?

1. This may lead to performance penalty, because some system works better on aligned data
2. Some machine will fail to read unaligned data
3. Code is not portable

I am getting the error (...) javax.naming.NameNotFoundException: greetJndi not bound

This means that nothing is bound to the jndi name greetJndi, very likely because of a deployment problem given the incredibly low quality of this tutorial (check the server logs). I'll come back on this.

Is there any specific directory structure to deploy in JBoss?

The internal structure of the ejb-jar is supposed to be like this (using the poor naming conventions and the default package as in the mentioned link):

.
+-- greetBean.java
+-- greetHome.java
+-- greetRemote.java
+-- META-INF
    +-- ejb-jar.xml
    +-- jboss.xml

But as already mentioned, this tutorial is full of mistakes:

• there is an extra character (<enterprise-beans>] <-- HERE) in the ejb-jar.xml (!)
• a space is missing after PUBLIC in the ejb-jar.xml and jboss.xml (!!)
• the jboss.xml is incorrect, it should contain a session element instead of entity (!!!)

Here is a "fixed" version of the ejb-jar.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
  <enterprise-beans>
    <session>
      <ejb-name>greetBean</ejb-name>
      <home>greetHome</home>
      <remote>greetRemote</remote>
      <ejb-class>greetBean</ejb-class>
      <session-type>Stateless</session-type>
      <transaction-type>Container</transaction-type>
    </session>
  </enterprise-beans>
</ejb-jar>

And of the jboss.xml:

<?xml version="1.0"?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.2//EN" "http://www.jboss.org/j2ee/dtd/jboss_3_2.dtd">
<jboss>
  <enterprise-beans>
    <session>
      <ejb-name>greetBean</ejb-name>
      <jndi-name>greetJndi</jndi-name>
    </session>
  </enterprise-beans>
</jboss>

After doing these changes and repackaging the ejb-jar, I was able to successfully deploy it:

21:48:06,512 INFO  [Ejb3DependenciesDeployer] Encountered deployment AbstractVFSDeploymentContext@5060868{vfszip:/home/pascal/opt/jboss-5.1.0.GA/server/default/deploy/greet.jar/}
21:48:06,534 INFO  [EjbDeployer] installing bean: ejb/#greetBean,uid19981448
21:48:06,534 INFO  [EjbDeployer]   with dependencies:
21:48:06,534 INFO  [EjbDeployer]   and supplies:
21:48:06,534 INFO  [EjbDeployer]    jndi:greetJndi
21:48:06,624 INFO  [EjbModule] Deploying greetBean
21:48:06,661 WARN  [EjbModule] EJB configured to bypass security. Please verify if this is intended. Bean=greetBean Deployment=vfszip:/home/pascal/opt/jboss-5.1.0.GA/server/default/deploy/greet.jar/
21:48:06,805 INFO  [ProxyFactory] Bound EJB Home 'greetBean' to jndi 'greetJndi'

That tutorial needs significant improvement; I'd advise from staying away from roseindia.net.

$ git --version
git version 1.7.3.4

git help and man git both hint at the available arguments you can pass to the command-line tool

Details: Objective-C project with Swift 3 code in Xcode 8.1

Tasks:

1. Use swift enum in objective-c class
2. Use objective-c enum in swift class

FULL SAMPLE

1. Objective-C class which use Swift enum

ObjcClass.h

#import <Foundation/Foundation.h>

typedef NS_ENUM(NSInteger, ObjcEnum) {
    ObjcEnumValue1,
    ObjcEnumValue2,
    ObjcEnumValue3
};

@interface ObjcClass : NSObject

+ (void) PrintEnumValues;

@end

ObjcClass.m

#import "ObjcClass.h"
#import "SwiftCode.h"

@implementation ObjcClass

+ (void) PrintEnumValues {
    [self PrintEnumValue:SwiftEnumValue1];
    [self PrintEnumValue:SwiftEnumValue2];
    [self PrintEnumValue:SwiftEnumValue3];
}

+ (void) PrintEnumValue:(SwiftEnum) value {
    switch (value) {
        case SwiftEnumValue1:
            NSLog(@"-- SwiftEnum: SwiftEnumValue1");
            break;
            
        case SwiftEnumValue2:
        case SwiftEnumValue3:
            NSLog(@"-- SwiftEnum: long value = %ld", (long)value);
            break;
    }
}

@end

Detect Swift code in Objective-C code

In my sample I use SwiftCode.h to detect Swift code in Objective-C. This file generate automatically (I did not create a physical copy of this header file in a project), and you can only set name of this file:

If the compiler can not find your header file Swift code, try to compile the project.

2. Swift class which use Objective-C enum

import Foundation

@objc
enum SwiftEnum: Int {
    case Value1, Value2, Value3
}

@objc
class SwiftClass: NSObject {
    
    class func PrintEnumValues() {
        PrintEnumValue(.Value1)
        PrintEnumValue(.Value2)
        PrintEnumValue(.Value3)
    }
    
    class func PrintEnumValue(value: ObjcEnum) {
        switch value {
        case .Value1, .Value2:
            NSLog("-- ObjcEnum: int value = \(value.rawValue)")
            
        case .Value3:
            NSLog("-- ObjcEnum: Value3")
            break
        }
        
    }
}

Detect Objective-C code in Swift code

You need to create bridging header file. When you add Swift file in Objective-C project, or Objective-C file in swift project Xcode will suggest you to create bridging header.

You can change bridging header file name here:

Bridging-Header.h

#import "ObjcClass.h"

Usage

#import "SwiftCode.h"
...
[ObjcClass PrintEnumValues];
[SwiftClass PrintEnumValues];
[SwiftClass PrintEnumValue:ObjcEnumValue3];

Result

MORE SAMPLES

Full integration steps Objective-c and Swift described above. Now I will write some other code examples.

3. Call Swift class from Objective-c code

Swift class

import Foundation

@objc
class SwiftClass:NSObject {
    
    private var _stringValue: String
    var stringValue: String {
        get {
            print("SwiftClass get stringValue")
            return _stringValue
        }
        set {
            print("SwiftClass set stringValue = \(newValue)")
            _stringValue = newValue
        }
    }
    
    init (stringValue: String) {
        print("SwiftClass init(String)")
        _stringValue = stringValue
    }
    
    func printValue() {
        print("SwiftClass printValue()")
        print("stringValue = \(_stringValue)")
    }
    
}

Objective-C code (calling code)

SwiftClass *obj = [[SwiftClass alloc] initWithStringValue: @"Hello World!"];
[obj printValue];
NSString * str = obj.stringValue;
obj.stringValue = @"HeLLo wOrLd!!!";

Result

4. Call Objective-c class from Swift code

Objective-C class (ObjcClass.h)

#import <Foundation/Foundation.h>

@interface ObjcClass : NSObject
@property NSString* stringValue;
- (instancetype) initWithStringValue:(NSString*)stringValue;
- (void) printValue;
@end

ObjcClass.m

#import "ObjcClass.h"

@interface ObjcClass()

@property NSString* strValue;

@end

@implementation ObjcClass

- (instancetype) initWithStringValue:(NSString*)stringValue {
    NSLog(@"ObjcClass initWithStringValue");
    _strValue = stringValue;
    return self;
}

- (void) printValue {
    NSLog(@"ObjcClass printValue");
    NSLog(@"stringValue = %@", _strValue);
}

- (NSString*) stringValue {
    NSLog(@"ObjcClass get stringValue");
    return _strValue;
}

- (void) setStringValue:(NSString*)newValue {
    NSLog(@"ObjcClass set stringValue = %@", newValue);
    _strValue = newValue;
}

@end

Swift code (calling code)

if let obj = ObjcClass(stringValue:  "Hello World!") {
    obj.printValue()
    let str = obj.stringValue;
    obj.stringValue = "HeLLo wOrLd!!!";
}

Result

5. Use Swift extension in Objective-c code

Swift extension

extension UIView {
    static func swiftExtensionFunc() {
        NSLog("UIView swiftExtensionFunc")
    }
}

Objective-C code (calling code)

[UIView swiftExtensionFunc];

6. Use Objective-c extension in swift code

Objective-C extension (UIViewExtension.h)

#import <UIKit/UIKit.h>

@interface UIView (ObjcAdditions)
+ (void)objcExtensionFunc;
@end

UIViewExtension.m

@implementation UIView (ObjcAdditions)
+ (void)objcExtensionFunc {
    NSLog(@"UIView objcExtensionFunc");
}
@end

Swift code (calling code)

UIView.objcExtensionFunc()

Here is a summary of the valid solutions provided by all users, for data frames indexed by integer and string.

df.iloc, df.loc and df.at work for both type of data frames, df.iloc only works with row/column integer indices, df.loc and df.at supports for setting values using column names and / or integer indices.

When the specified index does not exist, both df.loc and df.at would append the newly inserted rows/columns to the existing data frame, but df.iloc would raise "IndexError: positional indexers are out-of-bounds". A working example tested in Python 2.7 and 3.7 is as follows:

import numpy as np, pandas as pd

df1 = pd.DataFrame(index=np.arange(3), columns=['x','y','z'])
df1['x'] = ['A','B','C']
df1.at[2,'y'] = 400

# rows/columns specified does not exist, appends new rows/columns to existing data frame
df1.at['D','w'] = 9000
df1.loc['E','q'] = 499

# using df[<some_column_name>] == <condition> to retrieve target rows
df1.at[df1['x']=='B', 'y'] = 10000
df1.loc[df1['x']=='B', ['z','w']] = 10000

# using a list of index to setup values
df1.iloc[[1,2,4], 2] = 9999
df1.loc[[0,'D','E'],'w'] = 7500
df1.at[[0,2,"D"],'x'] = 10
df1.at[:, ['y', 'w']] = 8000

df1
>>> df1
     x     y     z     w      q
0   10  8000   NaN  8000    NaN
1    B  8000  9999  8000    NaN
2   10  8000  9999  8000    NaN
D   10  8000   NaN  8000    NaN
E  NaN  8000  9999  8000  499.0

As of jQuery 1.4.1, the hover event works with live(). It basically just binds to the mouseenter and mouseleave events, which you can do with versions prior to 1.4.1 just as well:

$("table tr")
    .mouseenter(function() {
        // Hover starts
    })
    .mouseleave(function() {
        // Hover ends
    });

This requires two binds but works just as well.

if you want to do very quick plots with secondary Y-Axis then there is much easier way using Pandas wrapper function and just 2 lines of code. Just plot your first column then plot the second but with parameter secondary_y=True, like this:

df.A.plot(label="Points", legend=True)
df.B.plot(secondary_y=True, label="Comments", legend=True)

This would look something like below:

You can do few more things as well. Take a look at Pandas plotting doc.

The be-all-end-all, for no selecting or dragging, with all browser prefixes:

-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-o-user-select: none;
-ms-user-select: none;
user-select: none;

-webkit-user-drag: none;
-khtml-user-drag: none;
-moz-user-drag: none;
-o-user-drag: none;
-ms-user-drag: none;
user-drag: none;

You can also set the draggable attribute to false. You can do this with inline HTML: draggable="false", with Javascript: elm.draggable = false, or with jQuery: elm.attr('draggable', false).

You can also handle the onmousedown function to return false. You can do this with inline HTML: onmousedown="return false", with Javascript: elm.onmousedown=()=>return false;, or with jQuery: elm.mousedown(()=>return false)

here put this in your .htaccess

AddType application/x-httpd-php .php .htm .html

more info on this page

You can use datejs and convert in different formate. I have tested some formate and working fine.

var d = new Date(1469433907836);

d.toLocaleString()     // 7/25/2016, 1:35:07 PM
d.toLocaleDateString() // 7/25/2016
d.toDateString()       // Mon Jul 25 2016
d.toTimeString()       // 13:35:07 GMT+0530 (India Standard Time)
d.toLocaleTimeString() // 1:35:07 PM
d.toISOString();       // 2016-07-25T08:05:07.836Z
d.toJSON();            // 2016-07-25T08:05:07.836Z
d.toString();          // Mon Jul 25 2016 13:35:07 GMT+0530 (India Standard Time)
d.toUTCString();       // Mon, 25 Jul 2016 08:05:07 GMT

You should be strongly typing your views. Then you can do this:

public class YourViewModel {
    public bool ConditionaValue { get; set; }
}

In your view, you can create a checkbox that will bind to this boolean value:

@Html.CheckBoxFor(x => x.ConditionalValue)

If it is checked, the model property will be true.

For your immediate problem though.. you need to name your checkbox to be the same name as your action method parameters.. and they should be bool..

You should never use the unidirectional @OneToMany annotation because:

1. It generates inefficient SQL statements
2. It creates an extra table which increases the memory footprint of your DB indexes

Now, in your first example, both sides are owning the association, and this is bad.

While the @JoinColumn would let the @OneToMany side in charge of the association, it's definitely not the best choice. Therefore, always use the mappedBy attribute on the @OneToMany side.

public class User{
    @OneToMany(fetch=FetchType.LAZY, cascade = CascadeType.ALL, mappedBy="user")
    public List<APost> aPosts;

    @OneToMany(fetch=FetchType.LAZY, cascade = CascadeType.ALL, mappedBy="user")
    public List<BPost> bPosts;
}

public class BPost extends Post {

    @ManyToOne(fetch=FetchType.LAZY)    
    public User user;
}

public class APost extends Post {

     @ManyToOne(fetch=FetchType.LAZY) 
     public User user;
}

We can use drush command also to check logs drush watchdog-show it will show recent 10 messages.

or if we want to continue showing logs with more information we can user

drush watchdog-show --tail --full.

consider the following solution

.disable-button{ 
  pointer-events: none; 
  background-color: #edf1f2;
}

See this Fiddle

<input type="radio" id="radio-2-1" name="radio-2-set" class="regular-radio" /><label for="radio-2-1"></label>
<input type="radio" id="radio-2-2" name="radio-2-set" class="regular-radio" /><label for="radio-2-2"></label>
<input type="radio" id="radio-2-3" name="radio-2-set" class="regular-radio" /><label for="radio-2-3"></label>

.regular-radio {
    display: none;
}

.regular-radio + label {
    -webkit-appearance: none;
    background-color: #e1e1e1;
    border: 4px solid #e1e1e1;
    border-radius: 10px;
    width: 100%;
    display: inline-block;
    position: relative;
    width: 10px;
    height: 10px;
}

.regular-radio:checked + label {
    background: grey;
    border: 4px solid #e1e1e1;
}

I have issue with itextsharp and itextsharp.xmlworker dlls for exception-from-hresult-0x80131040 so I have removed those both dlls from references and downloaded new dlls directly from nuget packages, which resolved my issue.

May be this method can be useful to resolved the issue to other people.

Expanding upon Melu's answer you can do this to functionalize the code and handle negative amounts.

Sample Output:
$5.23
-$5.23

function formatCurrency(total) {
    var neg = false;
    if(total < 0) {
        neg = true;
        total = Math.abs(total);
    }
    return (neg ? "-$" : '$') + parseFloat(total, 10).toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, "$1,").toString();
}

I have an answer (I admit somewhat confusing answer) that involvessed, regular expressions and capture groups:

• \S* - first word
• \s* - delimiter
• (\S*) - second word - captured
• .* - rest of the line

As a sed expression, the capture group needs to be escaped, i.e. \( and \).

The \1 returns a copy of the captured group, i.e. the second word.

$ echo "alpha beta gamma delta" | sed 's/\S*\s*\(\S*\).*/\1/'
beta

When you look at this answer, its somewhat confusing, and, you may think, why bother? Well, I'm hoping that some, may go "Aha!" and will use this pattern to solve some complex text extraction problems with a single sed expression.

Changing your passwords is a good idea, but for the process of removing password's from your repo's history, I recommend the BFG Repo-Cleaner, a faster, simpler alternative to git-filter-branch explicitly designed for removing private data from Git repos.

Create a private.txt file listing the passwords, etc, that you want to remove (one entry per line) and then run this command:

$ java -jar bfg.jar  --replace-text private.txt  my-repo.git

All files under a threshold size (1MB by default) in your repo's history will be scanned, and any matching string (that isn't in your latest commit) will be replaced with the string "***REMOVED***". You can then use git gc to clean away the dead data:

$ git gc --prune=now --aggressive

The BFG is typically 10-50x faster than running git-filter-branch and the options are simplified and tailored around these two common use-cases:

• Removing Crazy Big Files
• Removing Passwords, Credentials & other Private data

Full disclosure: I'm the author of the BFG Repo-Cleaner.

If you don't want to include the full path, you can do

add_executable(main main.cpp)
target_link_libraries(main bingitup)

bingitup is the same name you'd give a target if you create the static library in a CMake project:

add_library(bingitup STATIC bingitup.cpp)

CMake automatically adds the lib to the front and the .a at the end on Linux, and .lib at the end on Windows.

If the library is external, you might want to add the path to the library using

link_directories(/path/to/libraries/)

Set the minOccurs attribute to 0 in the schema like so:

<?xml version="1.0"?>
  <xs:schema version="1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
    <xs:element name="request">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="amenity">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="description" type="xs:string" minOccurs="0" />
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element> </xs:schema>

https://github.com/IdentityModel/IdentityModel adds extensions to HttpClient to acquire tokens using different flows and the documentation is great too. It's very handy because you don't have to think how to implement it yourself. I'm not aware if any official MS implementation exists.

In simple terms, environment variables are set when you open a new shell session. At any time if you change any of the variable values, the shell has no way of picking that change. that means the changes you made become effective in new shell sessions. The export command, on the other hand, provides the ability to update the current shell session about the change you made to the exported variable. You don't have to wait until new shell session to use the value of the variable you changed.

When you starting application 'Run as administrator'.This way I avoided this error.

You can replace the items at specific position using set method of ArrayList as below:

list.set( your_index, your_item );

But the element should be present at the index you are passing inside set() method else it will throw exception.

I've just been struggling with MSVC2005 to use the std::string(char*) constructor just like the top-rated answer. As I see this variant listed as #4 on always-trusted http://en.cppreference.com/w/cpp/string/basic_string/basic_string , I figure even an old compiler offers this.

It has taken me so long to realize that this constructor absolute refuses to match with (unsigned char*) as an argument ! I got these incomprehensible error messages about failure to match with std::string argument type, which was definitely not what I was aiming for. Just casting the argument with std::string((char*)ucharPtr) solved my problem... duh !

With the api you can use

var table = $('#example').DataTable();

table.column( 0 ).visible( false );

Look this info:

enter link description here

import threading 

# global variable x 
x = 0

def increment(): 
    """ 
    function to increment global variable x 
    """
    global x 
    x += 1

def thread_task(): 
    """ 
    task for thread 
    calls increment function 100000 times. 
    """
    for _ in range(100000): 
        increment() 

def main_task(): 
    global x 
    # setting global variable x as 0 
    x = 0

    # creating threads 
    t1 = threading.Thread(target=thread_task) 
    t2 = threading.Thread(target=thread_task) 

    # start threads 
    t1.start() 
    t2.start() 

    # wait until threads finish their job 
    t1.join() 
    t2.join() 

if __name__ == "__main__": 
    for i in range(10): 
        main_task() 
        print("Iteration {0}: x = {1}".format(i,x))

I created a project like you did. The structure looks like this

The Classes are just copy pasted from yours.

I changed the application.properties to this:

spring.datasource.url=jdbc:mysql://localhost/testproject
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update

But I think your problem is in your pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.1.RELEASE</version>
</parent>

<artifactId>spring-boot-sample-jpa</artifactId>
<name>Spring Boot JPA Sample</name>
<description>Spring Boot JPA Sample</description>

<dependencies>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

Check these files for differences. Hope this helps

Update 1: I changed my username. The link to the example is now https://github.com/Yannic92/stackOverflowExamples/tree/master/SpringBoot/MySQL

Retrieve File name first then in Blade file use anchor(a) tag like below shown. This would works for image view also.

<a href="{{ asset('storage/admission-document-uploads/' . $filename) }}" target="_black"> view Pdf </a>;

For those who don't know how to get index_name which mentioned in Devart's answer, or key_name which mentioned in Uday Sawant's answer, you can get it like this:

SHOW INDEX FROM table_name;

This will show all indexes for the given table, then you can pick name of the index or unique key that you want to remove.

I wrote a c++ program based on Win32 to write an assembly to the boot sector of a pen-drive. When the computer is booted from the pen-drive it executes the code successfully - have a look here C++ Program to write to the boot sector of a USB Pendrive

This program is a few lines that should be compiled on a compiler with windows compilation configured - such as a visual studio compiler - any available version.

I fixed the issue as below:

1. Restart machine
2. Delete bin and obj folders from respective project path.
3. Open visual studio
4. Clean and build the solution.

There you go issue resolved:)

I've tried this in iOS 7 and it worked for me

- (void)viewDidLoad
{
    [super viewDidLoad];
    [self.tableView sizeToFit];
}

Just use word-wrap:break-word; in the css. It works.

For those who didn't follow the MS proscribed order (see Xv's answer) you can still fix the problem.

MSBuild uses the VCTargetsPath to locate default cpp properties but cannot because the registry lacks this String Value.

Check for the String Value

• Launch regedit
• Navigator to HKLM\SOFTWARE\Microsoft\MSBuild\ToolsVersions\4.0
• Inspect VCTargetsPath key. The value should = "$(MSBuildExtensionsPath32)\Microsoft.Cpp\v4.0\"

To fix

• Launch regedit Navigator to HKLM\SOFTWARE\Microsoft\MSBuild\ToolsVersions\4.0
• Add String Value VCTargetsPath
• Set Value to "$(MSBuildExtensionsPath32)\Microsoft.Cpp\v4.0\"

Note: HKLM stands for HKEY_LOCAL_MACHINE.

try this

<table style="height: 100%; left: 0; position: absolute; text-align: center; width: 100%;">
 <tr>
  <td>
   <div style="text-align: left; display: inline-block;">
    Your Html code Here
   </div>
  </td>
 </tr>
</table>

Or this

<div style="height: 100%; left: 0; position: absolute; text-align: center; width: 100%; display: table">
 <div style="display: table-row">
  <div style="display: table-cell; vertical-align:middle;">
   <div style="text-align: left; display: inline-block;">
    Your Html code here
   </div>
  </div>
 </div>
</div>

There are 2 different ways you can look for lowercase characters:

1. Use str.islower() to find lowercase characters. Combined with a list comprehension, you can gather all lowercase letters:

   lowercase = [c for c in s if c.islower()]
   

2. You could use a regular expression:

   import re
   
   lc = re.compile('[a-z]+')
   lowercase = lc.findall(s)
   

The first method returns a list of individual characters, the second returns a list of character groups:

>>> import re
>>> lc = re.compile('[a-z]+')
>>> lc.findall('AbcDeif')
['bc', 'eif']

There are a few things wrong here:

• First, terminology. "Epoch" refers to the starting point of something. The "Unix Epoch" is Midnight, January 1st 1970 UTC. You can't convert an arbitrary "date string to epoch". You probably meant "Unix Time", which is often erroneously called "Epoch Time".

• .unix() returns Unix Time in whole seconds, but the default moment constructor accepts a timestamp in milliseconds. You should instead use .valueOf() to return milliseconds. Note that calling .unix()*1000 would also work, but it would result in a loss of precision.

• You're parsing a string without providing a format specifier. That isn't a good idea, as values like 1/2/2014 could be interpreted as either February 1st or as January 2nd, depending on the locale of where the code is running. (This is also why you get the deprecation warning in the console.) Instead, provide a format string that matches the expected input, such as:

  moment("10/15/2014 9:00", "M/D/YYYY H:mm")
  

• .calendar() has a very specific use. If you are near to the date, it will return a value like "Today 9:00 AM". If that's not what you expected, you should use the .format() function instead. Again, you may want to pass a format specifier.

• To answer your questions in comments, No - you don't need to call .local() or .utc().

Putting it all together:

var ts = moment("10/15/2014 9:00", "M/D/YYYY H:mm").valueOf();
var m = moment(ts);
var s = m.format("M/D/YYYY H:mm");
alert("Values are: ts = " + ts + ", s = " + s);

On my machine, in the US Pacific time zone, it results in:

Values are: ts = 1413388800000, s = 10/15/2014 9:00

Since the input value is interpreted in terms of local time, you will get a different value for ts if you are in a different time zone.

Also note that if you really do want to work with whole seconds (possibly losing precision), moment has methods for that as well. You would use .unix() to return the timestamp in whole seconds, and moment.unix(ts) to parse it back to a moment.

var ts = moment("10/15/2014 9:00", "M/D/YYYY H:mm").unix();
var m = moment.unix(ts);

If you are handling activity's orientation changes with android:configChanges="orientation|screenSize" and onConfigurationChanged(Configuration newConfig), onRestoreInstanceState() will not be called.

I had the same issue. The solution depends on OS. In my case, i have debian, so to solve it:

• Updated my php version from (php5 to php7)

• Install php-mysql and php7.0-mysql

  apt-get install php-mysql
  apt-get install php7.0-mysql
  

• I edited my php.ini locate at /etc/php/7.0/apache2/php.ini

  uncomment the line : extension=php_pdo_mysql.dll
  

• Then restart apache:

  service apache2 restart
  

This solves my problem

[[UIDevice currentDevice] uniqueIdentifier]

Returns the Unique ID of your iPhone.

EDIT: -[UIDevice uniqueIdentifier] is now deprecated and apps are being rejected from the App Store for using it. The method below is now the preferred approach.

If you need to create several UUID, just use this method (with ARC):

+ (NSString *)GetUUID
{
  CFUUIDRef theUUID = CFUUIDCreate(NULL);
  CFStringRef string = CFUUIDCreateString(NULL, theUUID);
  CFRelease(theUUID);
  return (__bridge NSString *)string;
}

EDIT: Jan, 29 2014: If you're targeting iOS 6 or later, you can now use the much simpler method:

NSString *UUID = [[NSUUID UUID] UUIDString];

A simple method involves using the get and set functions on the variable

    using System;
    public string Name{
    get{
     return name;
    }
    
    set{
     name= value;
     OnVarChange?.Invoke();
    }
    }
    private string name;
    
    public event System.Action OnVarChange;

First install maven in your system and set Maven environment variables

1. M2_HOME: ....\apache-maven-3.0.5 \ maven installed path
2. M2_Repo: D:\maven_repo \If change maven repo location
3. M2: %M2_HOME%\bin

Steps to Configures maven on Eclipse IDE:

• Select Window -> Preferences Note: If Maven option is not present, then add maven 3 to eclipse or install it.
• Add the Maven location of your system

To check maven is configured properly:

• Open Eclipse and click on Windows -> Preferences

• Choose Maven from left panel, and select installations.

• Click on Maven -> "User Settings" option form left panel, to check local repository location.

I would do something like this:

public int[] reverse3(int[] nums) {
  int[] numsReturn = new int[nums.length()]; 
  int count = nums.length()-1;
  for(int num : nums) {
    numsReturn[count] = num;
    count--;
  }
  return numsReturn;
}

td {
overflow: hidden;
max-width: 400px;
word-wrap: break-word;
}

I'm using OS X 10.10, open the shell, type

export PATH=$PATH:/usr/local/mysql/bin

it works temporary.if you use Command+T to open a new tab ,mysql command will not work anymore.

We need to create a .bash_profile file to make it work each time you open a new tab.

nano ~/.bash_profile

add the following line to the file.

# Set architecture flags
export ARCHFLAGS="-arch x86_64"
# Ensure user-installed binaries take precedence
export PATH=/usr/local/mysql/bin:$PATH
# Load .bashrc if it exists
test -f ~/.bashrc && source ~/.bashrc

Save the file, then open a new shell tab, it works like a charm..

by the way, why not try https://github.com/dbcli/mycli

pip install -U mycli

it's a tool way better than the mysqlcli.. A command line client for MySQL that can do auto-completion and syntax highlighting

There is another solution for testing APIs on development server.

• Set HTTP Basic Authentication only for web routes
• Leave all API routes free from authentication

Web server configuration for nginx and Laravel would be like this:

    location /api {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location / {
        try_files $uri $uri/ /index.php?$query_string;

        auth_basic "Enter password";
        auth_basic_user_file /path/to/.htpasswd;
    }

Authorization: Bearer will do the job of defending the development server against web crawlers and other unwanted visitors.

Git is not natively supported under Windows, just yet. It is optimized for Posix systems. However running Cygwin or MinGW lets you run Git successful.

Nowadays I prefer Git over SVN, but it takes a while to get over the threshold if you come from CVS, SVN land.

You have to redirect output from second java executable to some file. Then, use SendSignal to send "-3" to your second process.

I'm writing this as a separate answer rather than just a comment because I disagree with Luc Touraille's answer, not on the grounds of legality but for robust software and the danger of misinterpretation.

Specifically, I have an issue with the implied contract of what you expect users of your interface to have to know.

If you are returning or accepting reference types, then you are just saying they can pass through a pointer or reference which they may in turn have known only through a forward declaration.

When you are returning an incomplete type X f2(); then you are saying your caller must have the full type specification of X. They need it in order to create the LHS or temporary object at the call site.

Similarly, if you accept an incomplete type, the caller has to have constructed the object which is the parameter. Even if that object was returned as another incomplete type from a function, the call site needs the full declaration. i.e.:

class X;  // forward for two legal declarations 
X returnsX();
void XAcceptor(X);

XAcepptor( returnsX() );  // X declaration needs to be known here

I think there's an important principle that a header should supply enough information to use it without a dependency requiring other headers. That means header should be able to be included in a compilation unit without causing a compiler error when you use any functions it declares.

Except

1. If this external dependency is desired behaviour. Instead of using conditional compilation you could have a well-documented requirement for them to supply their own header declaring X. This is an alternative to using #ifdefs and can be a useful way to introduce mocks or other variants.

2. The important distinction being some template techniques where you are explicitly NOT expected to instantiate them, mentioned just so someone doesn't get snarky with me.

Dynamic analysis methods

Here I describe a few dynamic analysis methods.

Dynamic methods actually run the program to determine the call graph.

The opposite of dynamic methods are static methods, which try to determine it from the source alone without running the program.

Advantages of dynamic methods:

• catches function pointers and virtual C++ calls. These are present in large numbers in any non-trivial software.

Disadvantages of dynamic methods:

• you have to run the program, which might be slow, or require a setup that you don't have, e.g. cross-compilation
• only functions that were actually called will show. E.g., some functions could be called or not depending on the command line arguments.

KcacheGrind

https://kcachegrind.github.io/html/Home.html

Test program:

int f2(int i) { return i + 2; }
int f1(int i) { return f2(2) + i + 1; }
int f0(int i) { return f1(1) + f2(2); }
int pointed(int i) { return i; }
int not_called(int i) { return 0; }

int main(int argc, char **argv) {
    int (*f)(int);
    f0(1);
    f1(1);
    f = pointed;
    if (argc == 1)
        f(1);
    if (argc == 2)
        not_called(1);
    return 0;
}

Usage:

sudo apt-get install -y kcachegrind valgrind

# Compile the program as usual, no special flags.
gcc -ggdb3 -O0 -o main -std=c99 main.c

# Generate a callgrind.out.<PID> file.
valgrind --tool=callgrind ./main

# Open a GUI tool to visualize callgrind data.
kcachegrind callgrind.out.1234

You are now left inside an awesome GUI program that contains a lot of interesting performance data.

On the bottom right, select the "Call graph" tab. This shows an interactive call graph that correlates to performance metrics in other windows as you click the functions.

To export the graph, right click it and select "Export Graph". The exported PNG looks like this:

From that we can see that:

• the root node is _start, which is the actual ELF entry point, and contains glibc initialization boilerplate
• f0, f1 and f2 are called as expected from one another
• pointed is also shown, even though we called it with a function pointer. It might not have been called if we had passed a command line argument.
• not_called is not shown because it didn't get called in the run, because we didn't pass an extra command line argument.

The cool thing about valgrind is that it does not require any special compilation options.

Therefore, you could use it even if you don't have the source code, only the executable.

valgrind manages to do that by running your code through a lightweight "virtual machine". This also makes execution extremely slow compared to native execution.

As can be seen on the graph, timing information about each function call is also obtained, and this can be used to profile the program, which is likely the original use case of this setup, not just to see call graphs: How can I profile C++ code running on Linux?

Tested on Ubuntu 18.04.

gcc -finstrument-functions + etrace

https://github.com/elcritch/etrace

-finstrument-functions adds callbacks, etrace parses the ELF file and implements all callbacks.

I couldn't get it working however unfortunately: Why doesn't `-finstrument-functions` work for me?

Claimed output is of format:

\-- main
|   \-- Crumble_make_apple_crumble
|   |   \-- Crumble_buy_stuff
|   |   |   \-- Crumble_buy
|   |   |   \-- Crumble_buy
|   |   |   \-- Crumble_buy
|   |   |   \-- Crumble_buy
|   |   |   \-- Crumble_buy
|   |   \-- Crumble_prepare_apples
|   |   |   \-- Crumble_skin_and_dice
|   |   \-- Crumble_mix
|   |   \-- Crumble_finalize
|   |   |   \-- Crumble_put
|   |   |   \-- Crumble_put
|   |   \-- Crumble_cook
|   |   |   \-- Crumble_put
|   |   |   \-- Crumble_bake

Likely the most efficient method besides specific hardware tracing support, but has the downside that you have to recompile the code.

In the WPF application, you can handle this by handling TextChanged event:

void arsDigitTextBox_TextChanged(object sender, System.Windows.Controls.TextChangedEventArgs e)
{
    Regex regex = new Regex("[^0-9]+");
    bool handle = regex.IsMatch(this.Text);
    if (handle)
    {
        StringBuilder dd = new StringBuilder();
        int i = -1;
        int cursor = -1;
        foreach (char item in this.Text)
        {
            i++;
            if (char.IsDigit(item))
                dd.Append(item);
            else if(cursor == -1)
                cursor = i;
        }
        this.Text = dd.ToString();

        if (i == -1)
            this.SelectionStart = this.Text.Length;
        else
            this.SelectionStart = cursor;
    }
}

If you write your code in emacs then you might be interested in the htmlize elisp package.

The database's built-in catalog views provide the information to do this. Try this query:

SELECT
  (
    dp.state_desc + ' ' +
    dp.permission_name collate latin1_general_cs_as + 
    ' ON ' + '[' + s.name + ']' + '.' + '[' + o.name + ']' +
    ' TO ' + '[' + dpr.name + ']'
  ) AS GRANT_STMT
FROM sys.database_permissions AS dp
  INNER JOIN sys.objects AS o ON dp.major_id=o.object_id
  INNER JOIN sys.schemas AS s ON o.schema_id = s.schema_id
  INNER JOIN sys.database_principals AS dpr ON dp.grantee_principal_id=dpr.principal_id
WHERE dpr.name NOT IN ('public','guest')
--  AND o.name IN ('My_Procedure')      -- Uncomment to filter to specific object(s)
--  AND dp.permission_name='EXECUTE'    -- Uncomment to filter to just the EXECUTEs

This will spit out a bunch of commands (GRANT/DENY) for each of the permissions in the database. From this, you can copy-and-paste them into another query window and execute, to generate the same permissions that were in place on the original. For example:

GRANT EXECUTE ON [Exposed].[EmployeePunchoutReservationRetrieve] TO [CustomerAgentRole]
GRANT EXECUTE ON [Exposed].[EmployeePunchoutReservationStore] TO [CustomerAgentRole]
GRANT EXECUTE ON [Exposed].[EmployeePunchoutSendOrderLogStore] TO [CustomerAgentRole]
GRANT EXECUTE ON [Exposed].[EmployeeReportSubscriptions] TO [CustomerAgentRole]

Note the bottom line, commented out, that's filtering on permission_name. Un-commenting that line will cause the query to only spit out the EXECUTE permissions (i.e., those for stored procedures).

Example about sleep doesn’t release lock and wait does

Here there are two classes :

1. Main : Contains main method and two threads.

2. Singleton : This is singleton class with two static methods getInstance() and getInstance(boolean isWait).

   public class Main {
   
   private static Singleton singletonA = null;
   private static Singleton singletonB = null;
   
   public static void main(String[] args) throws InterruptedException {
   
   Thread threadA = new Thread() {
       @Override
       public void run() {
   
           singletonA = Singleton.getInstance(true);
   
       }
   };
   
   Thread threadB = new Thread() {
       @Override
       public void run() {
           singletonB = Singleton.getInstance();
   
           while (singletonA == null) {
               System.out.println("SingletonA still null");
           }
   
           if (singletonA == singletonB) {
               System.out.println("Both singleton are same");
           } else {
               System.out.println("Both singleton are not same");
           }
   
       }
   };
   
   threadA.start();
   threadB.start();
   
    }
   }
   

and

public class Singleton {

    private static Singleton _instance;

    public static Singleton getInstance() {

    if (_instance == null) {
        synchronized (Singleton.class) {
            if (_instance == null)
                _instance = new Singleton();
        }
    }
    return _instance;

}

public static Singleton getInstance(boolean isWait) {

    if (_instance == null) {
        synchronized (Singleton.class) {
            if (_instance == null) {
                if (isWait) {
                    try {
                        // Singleton.class.wait(500);//Using wait
                        Thread.sleep(500);// Using Sleep
                        System.out.println("_instance :"
                                + String.valueOf(_instance));
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }

                _instance = new Singleton();
            }
        }
    }
    return _instance;

 }
}

Now run this example you will get below output :

_instance :null
Both singleton are same

Here Singleton instances created by threadA and threadB are same. It means threadB is waiting outside until threadA release it’s lock.

Now change the Singleton.java by commenting Thread.sleep(500); method and uncommenting Singleton.class.wait(500); . Here because of Singleton.class.wait(500); method threadA will release all acquire locks and moves into the “Non Runnable” state, threadB will get change to enter in synchronized block.

Now run again :

SingletonA still null
SingletonA still null
SingletonA still null
_instance :com.omt.sleepwait.Singleton@10c042ab
SingletonA still null
SingletonA still null
SingletonA still null
Both singleton are not same

Here Singleton instances created by threadA and threadB are NOT same because of threadB got change to enter in synchronised block and after 500 milliseconds threadA started from it’s last position and created one more Singleton object.

From cmd (Windows):

C\Users\You> `vim foo.txt`

Now in Vim, enter command mode by typing: ":" (i.e. Shift + ;)

:tabedit $HOME/.vimrc

If it's just for display purposes, you can render the text as upper or lower case in pure CSS, without any Javascript using the text-transform property:

.myclass {
    text-transform: lowercase;
}

See https://developer.mozilla.org/en/CSS/text-transform for more info.

However, note that this doesn't actually change the value to lower case; it just displays it that way. This means that if you examine the contents of the element (ie using Javascript), it will still be in its original format.

Just another example to add BigDecimals. Key point is that they are immutable and they can be initialized only in the constructor. Here is the code:

import java.util.*;
import java.math.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc;
        boolean first_right_number = false;
        BigDecimal initBigDecimal = BigDecimal.ZERO;
        BigDecimal add1 = BigDecimal.ZERO;
        BigDecimal add2 = BigDecimal.ZERO;

        while (!first_right_number)
        {
            System.out.print("Enter a first single numeric value: ");
            sc = new Scanner(System.in);
            if (sc.hasNextBigDecimal()) 
            {
                first_right_number = true;
                add1 = sc.nextBigDecimal();
            }
        }

        boolean second_right_number = false;
        while (!second_right_number)
        {
            System.out.print("Enter a second single numeric value: ");
            sc = new Scanner(System.in);
            if (sc.hasNextBigDecimal()) 
            {
                second_right_number = true;
                add2 = sc.nextBigDecimal();
            }
        }
        BigDecimal result = initBigDecimal.add(add1).add(add2);
        System.out.println("Sum of the 2 numbers is: " + result.toString());
    }
}

size_t is a type that can hold any array index.

Depending on the implementation, it can be any of:

unsigned char

unsigned short

unsigned int

unsigned long

unsigned long long

Here's how size_t is defined in stddef.h of my machine:

typedef unsigned long size_t;

I won't repost the other answers because they're all correct, but I'll just add that you can't use switch for more "complicated" statements, eg: to test if a value is "greater than 3", "between 4 and 6", etc. If you need to do something like that, stick to using if statements, or if there's a particularly strong need for switch then it's possible to use it back to front:

switch (true) {
    case ($value > 3) :
        // value is greater than 3
    break;
    case ($value >= 4 && $value <= 6) :
        // value is between 4 and 6
    break;
}

but as I said, I'd personally use an if statement there.

You can use a CASE statement:

SELECT count(id), 
    SUM(hour) as totHour, 
    SUM(case when kind = 1 then 1 else 0 end) as countKindOne

The window is the first thing that gets loaded into the browser. This window object has the majority of the properties like length, innerWidth, innerHeight, name, if it has been closed, its parents, and more.

The document object is your html, aspx, php, or other document that will be loaded into the browser. The document actually gets loaded inside the window object and has properties available to it like title, URL, cookie, etc. What does this really mean? That means if you want to access a property for the window it is window.property, if it is document it is window.document.property which is also available in short as document.property.

• See more at: http://eligeske.com/jquery/what-is-the-difference-between-document-and-window-objects-2/#sthash.CVkTMIL7.dpuf

Try using ZoomView for zooming any other view.

http://code.google.com/p/android-zoom-view/ it's easy, free and fun to use!

Another way to do it:

testSpace.Style.Add("display", "none");

or

testSpace.Style["background-image"] = "url(images/foo.png)";

in vb.net you can do it this way:

testSpace.Style.Item("display") = "none"

The problem in your code is xml.LoadXml(filePath);

LoadXml method take parameter as xml data not the xml file path

Try this code

   string xmlFile = File.ReadAllText(@"D:\Work_Time_Calculator\10-07-2013.xml");
                XmlDocument xmldoc = new XmlDocument();
                xmldoc.LoadXml(xmlFile);
                XmlNodeList nodeList = xmldoc.GetElementsByTagName("Short_Fall");
                string Short_Fall=string.Empty;
                foreach (XmlNode node in nodeList)
                {
                    Short_Fall = node.InnerText;
                }

Edit

Seeing the last edit of your question i found the solution,

Just replace the below 2 lines

XmlNode node = xml.SelectSingleNode("/Data[@*]/Short_Fall");
string id = node["Short_Fall"].InnerText; // Exception occurs here ("Object reference not set to an instance of an object.")

with

string id = xml.SelectSingleNode("Data/Short_Fall").InnerText;

It should solve your problem or you can use the solution i provided earlier.

Try using the daemon function:

#include <unistd.h>

int daemon(int nochdir, int noclose);

From the man page:

The daemon() function is for programs wishing to detach themselves from the controlling terminal and run in the background as system daemons.

If nochdir is zero, daemon() changes the calling process's current working directory to the root directory ("/"); otherwise, the current working directory is left unchanged.

If noclose is zero, daemon() redirects standard input, standard output and standard error to /dev/null; otherwise, no changes are made to these file descriptors.

array[0].map((_, colIndex) => array.map(row => row[colIndex]));

map calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values.

callback is invoked with three arguments: the value of the element, the index of the element, and the Array object being traversed. [source]

The only one that worked for me!:

html {
  position: relative;
  min-height: 100%;
  padding-bottom:90px;
}
body {
  margin-bottom: 90px;
}
footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 90px;
}

A MIME type is a label used to identify a type of data. It is used so software can know how to handle the data. It serves the same purpose on the Internet that file extensions do on Microsoft Windows.

So if a server says "This is text/html" the client can go "Ah, this is an HTML document, I can render that internally", while if the server says "This is application/pdf" the client can go "Ah, I need to launch the FoxIt PDF Reader plugin that the user has installed and that has registered itself as the application/pdf handler."

You'll most commonly find them in the headers of HTTP messages (to describe the content that an HTTP server is responding with or the formatting of the data that is being POSTed in a request) and in email headers (to describe the message format and attachments).

It's in fact almost the same in Python.. :-)

import datetime
year = datetime.date.today().year

Of course, date doesn't have a time associated, so if you care about that too, you can do the same with a complete datetime object:

import datetime
year = datetime.datetime.today().year

(Obviously no different, but you can store datetime.datetime.today() in a variable before you grab the year, of course).

One key thing to note is that the time components can differ between 32-bit and 64-bit pythons in some python versions (2.5.x tree I think). So you will find things like hour/min/sec on some 64-bit platforms, while you get hour/minute/second on 32-bit.

In my case (admittedly very arcane and not likely to be reproduced often), this was causing the problem (this code is related to PDF generation using iTextSharp):

PdfPTable tblDuckbilledPlatypi = new PdfPTable(3);
float[] DuckbilledPlatypiRowWidths = new float[] { 42f, 76f };
tblDuckbilledPlatypi.SetWidths(DuckbilledPlatypiRowWidths);

The declaration of a 3-celled/columned table, and then setting only two vals for the width was what caused the problem, apparently. Once I changed "PdfPTable(3)" to "PdfPTable(2)" the problem went the way of the convection oven.

Use the -I flag to gcc properly.

gcc -I/path/to/openssl/ -o Opentest -lcrypto Opentest.c

The -I should point to the directory containing the openssl folder.

This will find the first parent with class box then find the first child class with regex matching something and get the id.

$(".mylink").closest(".box").find('[class*="something"]').first().attr("id")

You cannot store arrays in a vector or any other container. The type of the elements to be stored in a container (called the container's value type) must be both copy constructible and assignable. Arrays are neither.

You can, however, use an array class template, like the one provided by Boost, TR1, and C++0x:

std::vector<std::array<double, 4> >

(You'll want to replace std::array with std::tr1::array to use the template included in C++ TR1, or boost::array to use the template from the Boost libraries. Alternatively, you can write your own; it's quite straightforward.)

Firstly, you should use randrange(0,1000) or randint(0,999), not randint(0,1000). The upper limit of randint is inclusive.

For efficiently, randint is simply a wrapper of randrange which calls random, so you should just use random. Also, use xrange as the argument to sample, not range.

You could use

[a for a in sample(xrange(1000),1000) for _ in range(10000/1000)]

to generate 10,000 numbers in the range using sample 10 times.

(Of course this won't beat NumPy.)

$ python2.7 -m timeit -s 'from random import randrange' '[randrange(1000) for _ in xrange(10000)]'
10 loops, best of 3: 26.1 msec per loop

$ python2.7 -m timeit -s 'from random import sample' '[a%1000 for a in sample(xrange(10000),10000)]'
100 loops, best of 3: 18.4 msec per loop

$ python2.7 -m timeit -s 'from random import random' '[int(1000*random()) for _ in xrange(10000)]' 
100 loops, best of 3: 9.24 msec per loop

$ python2.7 -m timeit -s 'from random import sample' '[a for a in sample(xrange(1000),1000) for _ in range(10000/1000)]'
100 loops, best of 3: 3.79 msec per loop

$ python2.7 -m timeit -s 'from random import shuffle
> def samplefull(x):
>   a = range(x)
>   shuffle(a)
>   return a' '[a for a in samplefull(1000) for _ in xrange(10000/1000)]'
100 loops, best of 3: 3.16 msec per loop

$ python2.7 -m timeit -s 'from numpy.random import randint' 'randint(1000, size=10000)'
1000 loops, best of 3: 363 usec per loop

But since you don't care about the distribution of numbers, why not just use:

range(1000)*(10000/1000)

?

You should checkout Junit-ext project. They have RunIf annotation that performs conditional tests, like:

@Test
@RunIf(DatabaseIsConnected.class)
public void calculateTotalSalary() {
    //your code there
}

class DatabaseIsConnected implements Checker {
   public boolean satisify() {
        return Database.connect() != null;
   }
}

[Code sample taken from their tutorial]

You can't: DataFrame columns are Series, by definition. That said, if you make the dtype (the type of all the elements) datetime-like, then you can access the quantities you want via the .dt accessor (docs):

>>> df["TimeReviewed"] = pd.to_datetime(df["TimeReviewed"])
>>> df["TimeReviewed"]
205  76032930   2015-01-24 00:05:27.513000
232  76032930   2015-01-24 00:06:46.703000
233  76032930   2015-01-24 00:06:56.707000
413  76032930   2015-01-24 00:14:24.957000
565  76032930   2015-01-24 00:23:07.220000
Name: TimeReviewed, dtype: datetime64[ns]
>>> df["TimeReviewed"].dt
<pandas.tseries.common.DatetimeProperties object at 0xb10da60c>
>>> df["TimeReviewed"].dt.year
205  76032930    2015
232  76032930    2015
233  76032930    2015
413  76032930    2015
565  76032930    2015
dtype: int64
>>> df["TimeReviewed"].dt.month
205  76032930    1
232  76032930    1
233  76032930    1
413  76032930    1
565  76032930    1
dtype: int64
>>> df["TimeReviewed"].dt.minute
205  76032930     5
232  76032930     6
233  76032930     6
413  76032930    14
565  76032930    23
dtype: int64

If you're stuck using an older version of pandas, you can always access the various elements manually (again, after converting it to a datetime-dtyped Series). It'll be slower, but sometimes that isn't an issue:

>>> df["TimeReviewed"].apply(lambda x: x.year)
205  76032930    2015
232  76032930    2015
233  76032930    2015
413  76032930    2015
565  76032930    2015
Name: TimeReviewed, dtype: int64

after cloning a fork you have to explicitly add a remote upstream, with git add remote "the original repo you forked from". This becomes your upstream, you mostly fetch and merge from your upstream. Any other business such as pushing from your local to upstream should be done using pull request.

ArrayList values = ... // your values
Set uniqueValues = new HashSet(values); //now unique

That is not HTML, but PHP. It is called the HEREDOC string method, and is an alternative to using quotes for writing multiline strings.

The HTML in your example will be:

    <tr>
      <td>TEST</td>
    </tr>

Read the PHP documentation that explains it.

River of News for the iPad took about 400 hours of development to get to version 1.0 and I don't know how many hours my designer spent (20-50?). At US labor rates that's at least $40,000. But that sort of tight development was only possible because it was a one man operation. There is an enormous amount of overhead added when you separate the person writing the code from the person deciding what the product is going to do.

If you are going to send it offshore you'd better know exactly what you want. With the language and time difference it's very hard to do iterative design where you are exploring what is possible.

The Access denied is because Windows doesn't give the default write and modify permission to the files in its install drive viz. c: To resolve this issue I usually use a separate drive or in your case, you need to set the access rights to the specific folder in the options right click -> options > security -> edit

If you find yourself doing things like this regularly it may be worth investigating the object-oriented interface to matplotlib. In your case:

import matplotlib.pyplot as plt
import numpy as np

x = np.arange(5)
y = np.exp(x)
fig1, ax1 = plt.subplots()
ax1.plot(x, y)
ax1.set_title("Axis 1 title")
ax1.set_xlabel("X-label for axis 1")

z = np.sin(x)
fig2, (ax2, ax3) = plt.subplots(nrows=2, ncols=1) # two axes on figure
ax2.plot(x, z)
ax3.plot(x, -z)

w = np.cos(x)
ax1.plot(x, w) # can continue plotting on the first axis

It is a little more verbose but it's much clearer and easier to keep track of, especially with several figures each with multiple subplots.

Python has several XML modules built in. The simplest one for the case that you already have a string with the full HTML is xml.etree, which works (somewhat) similarly to the lxml example you mention:

def remove_tags(text):
    return ''.join(xml.etree.ElementTree.fromstring(text).itertext())

Should it not be foreach instead of for!?

//call SQL helper class to get initial data  
DataTable dt = sql.ExecuteDataTable("sp_MyProc"); 

dt.Columns.Add("MyRow", **typeof**(System.Int32)); 

foreach(DataRow dr in dt.Rows) 
{ 
    //need to set value to MyRow column 
    dr["MyRow"] = 0;   // or set it to some other value 
} 

You can use the beforeSend callback to set additional parameters (The XMLHTTPRequest object is passed to it as its only parameter).

Just so you know, this type of cross-domain request will not work in a normal site scenario and not with any other browser. I don't even know what security limitations FF 3.5 imposes as well, just so you don't beat your head against the wall for nothing:

$.ajax({
    url: 'http://bar.other',
    data: { whatever:'cool' },
    type: 'GET',
    beforeSend: function(xhr){
       xhr.withCredentials = true;
    }
});

One more thing to beware of, is that jQuery is setup to normalize browser differences. You may find that further limitations are imposed by the jQuery library that prohibit this type of functionality.

The solution is:

pylab.savefig('foo.png')

I'll suggest that you use this as it will check for both single and multiple occurrence of white space (as suggested by Lucas Green).

$journalName = preg_replace('/\s+/', '_', $journalName);

instead of:

$journalName = str_replace(' ', '_', $journalName);

You probably need to set the FIELDS TERMINATED BY ',' or whatever the delimiter happens to be.

For a CSV file, your statement should look like this:

LOAD DATA INFILE 'data.csv' INTO TABLE tbl_name
FIELDS TERMINATED BY ',' ENCLOSED BY '"'
LINES TERMINATED BY '\r\n'
IGNORE 1 LINES;

REAL is what you are looking for. Documentation of SQLite datatypes

Include this dependencies in your POM.xml and run Maven -> Update

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-json</artifactId>
    <version>1.18.1</version>
</dependency>
<dependency>
   <groupId>com.owlike</groupId>
   <artifactId>genson</artifactId>
   <version>0.99</version>
</dependency>

By default CM10 only allows root access from Apps not ADB. Go to Settings -> Developer options -> Root access, and change option to "Apps and ADB".

Use split on string:

var array = coolVar.split(/-/);

409 Conflict could be an acceptable solution.

According to: https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html

The request could not be completed due to a conflict with the current state of the resource. This code is only allowed in situations where it is expected that the user might be able to resolve the conflict and resubmit the request. The response body SHOULD include enough information for the user to recognize the source of the conflict. Ideally, the response entity would include enough information for the user or user agent to fix the problem; however, that might not be possible and is not required.

The doc continues with an example:

Conflicts are most likely to occur in response to a PUT request. For example, if versioning were being used and the entity being PUT included changes to a resource which conflict with those made by an earlier (third-party) request, the server might use the 409 response to indicate that it can't complete the request. In this case, the response entity would likely contain a list of the differences between the two versions in a format defined by the response Content-Type.

In my case, I would like to PUT a string, that must be unique, to a database via an API. Before adding it to the database, I am checking that it is not already in the database.

If it is, I will return "Error: The string is already in the database", 409.

I believe this is what the OP wanted: an error code suitable for when the data does not pass the server's criteria.

A li doesn't have a value. Only form-related elements such as input, textarea and select have values.

I've translated some of the above Objective-C answers into Swift code. Each translation is proceeded with a reference to the original answer.

Main Answer

let screen = UIScreen.main.bounds
let screenWidth = screen.size.width
let screenHeight = screen.size.height

##Simple Function Answer

func windowHeight() -> CGFloat {
    return UIScreen.main.bounds.size.height
}

func windowWidth() -> CGFloat {
    return UIScreen.main.bounds.size.width
}

##Device Orientation Answer

let screenHeight: CGFloat
let statusBarOrientation = UIApplication.shared.statusBarOrientation
// it is important to do this after presentModalViewController:animated:
if (statusBarOrientation != .portrait
    && statusBarOrientation != .portraitUpsideDown) {
    screenHeight = UIScreen.main.bounds.size.width
} else {
    screenHeight = UIScreen.main.bounds.size.height
}

##Log Answer

let screenWidth = UIScreen.main.bounds.size.width
let screenHeight = UIScreen.main.bounds.size.height
println("width: \(screenWidth)")
println("height: \(screenHeight)")

I have updated the controller to:

.controller('BusinessCtrl',
    function ($scope, $http, $location, Business, BusinessService, UserService, Photo) {
        $scope.$watch('createBusinessForm.$valid', function(newVal) {
            //$scope.valid = newVal;
            $scope.informationStatus = true;
        });
        ...

What I do is give each one of my reusable component a unique custom element name and then create a CSS file for that component, specifically, with all styling options for that component (and only for that component).

var MyDiv = React.createClass({
  render: function() {
    return <custom-component style={style}> Have a good and productive day! </custom-component>;
  }
});

And in file 'custom-component.css', every entry will start with the custom-component tag:

custom-component { 
   display: block; /* have it work as a div */
   color: 'white'; 
   fontSize: 200; 
} 
custom-component h1 { 
  font-size: 1.4em; 
}

That means you don't lose the critical notion of separating of concern. View vs style. If you share your component, it is easier for others to theme it to match the rest of their web page.

Here's a method I wrote to check if an URL exists or not. I had a requirement to add a request header. It's Groovy but should be fairly simple to adapt to Java. Essentially I'm using the org.springframework.web.client.RestTemplate#execute(java.lang.String, org.springframework.http.HttpMethod, org.springframework.web.client.RequestCallback, org.springframework.web.client.ResponseExtractor<T>, java.lang.Object...) API method. I guess the solution you arrive at depends at least in part on the HTTP method you want to execute. The key take away from example below is that I'm passing a Groovy closure (The third parameter to method restTemplate.execute(), which is more or less, loosely speaking a Lambda in Java world) that is executed by the Spring API as a callback to be able to manipulate the request object before Spring executes the command,

boolean isUrlExists(String url) {
    try {
      return (restTemplate.execute(url, HttpMethod.HEAD,
              { ClientHttpRequest request -> request.headers.add('header-name', 'header-value') },
              { ClientHttpResponse response -> response.headers }) as HttpHeaders)?.get('some-response-header-name')?.contains('some-response-header-value')
    } catch (Exception e) {
      log.warn("Problem checking if $url exists", e)
    }
    false
  }

change

compile 'com.android.support:appcompat-v7:26.0'

to

`compile 'com.android.support:appcompat-v7:26.+'`

worked for me fine.

Truth values can be described using a Boolean algebra. The article also contains tables for and and or. This should help you to get started or to get even more confused.

Here you are a working stack:

Some previous notes:

• If you run selenium in a non graphical enviromnent, xvfb is required.

• You will need selenium-server-standalone-2.53.1.jar (working version). You can download selenium versions here: http://selenium-release.storage.googleapis.com/index.html

• You will also need chromedriver v 2.27. Download link: https://chromedriver.storage.googleapis.com/index.html

1) Run sudo Xvfb :10 -ac &

2) Run export DISPLAY=:10

3) Run java -jar "YOUR_PATH_TO/selenium-server-standalone-2.53.1.jar" -Dwebdriver.chrome.driver="YOUR_PATH_TO/chromedriver.2.27" -Dwebdriver.chrome.whitelistedIps="localhost"

In linux shell, many commands accept multiple parameters and therefore could be used with wild cards. So, for example if you want to move all files from folder A to folder B, you write:

mv A/* B

If you want to move all files with a certain "look" to it, you could do like this:

mv A/*.txt B

Which copies all files that are blablabla.txt to folder B

Star (*) can substitute any number of characters or letters while ? can substitute one. For example if you have many files in the shape file_number.ext and you want to move only the ones that have two digit numbers, you could use a command like this:

mv A/file_??.ext B

Or more complicated examples:

mv A/fi*_??.e* B

For files that look like fi<-something->_<-two characters->.e<-something->

Unlike many commands in shell that require -R to (for example) copy or remove subfolders, mv does that itself.

Remember that mv overwrites without asking (unless the files being overwritten are read only or you don't have permission) so make sure you don't lose anything in the process.

For your future information, if you have subfolders that you want to copy, you could use the -R option, saying you want to do the command recursively. So it would look something like this:

cp A/* B -R

By the way, all I said works with rm (remove, delete) and cp (copy) too and beware, because once you delete, there is no turning back! Avoid commands like rm * -R unless you are sure what you are doing.

Use the after method on the Tk object:

from tkinter import *

root = Tk()

def task():
    print("hello")
    root.after(2000, task)  # reschedule event in 2 seconds

root.after(2000, task)
root.mainloop()

Here's the declaration and documentation for the after method:

def after(self, ms, func=None, *args):
    """Call function once after given time.

    MS specifies the time in milliseconds. FUNC gives the
    function which shall be called. Additional parameters
    are given as parameters to the function call.  Return
    identifier to cancel scheduling with after_cancel."""

The _id field is always present unless you explicitly exclude it. Do so using the - syntax:

exports.someValue = function(req, res, next) {
    //query with mongoose
    var query = dbSchemas.SomeValue.find({}).select('name -_id');

    query.exec(function (err, someValue) {
        if (err) return next(err);
        res.send(someValue);
    });
};

Or explicitly via an object:

exports.someValue = function(req, res, next) {
    //query with mongoose
    var query = dbSchemas.SomeValue.find({}).select({ "name": 1, "_id": 0});

    query.exec(function (err, someValue) {
        if (err) return next(err);
        res.send(someValue);
    });
};

.android  

check this folder in

C:\Users\user

its have an issue and fix it then restart android studio.

1. Check File Permissions
2. Check File size.

Sometimes an inaccessible or corrupted file would be the problem, as was in my case

In my case we are running VMWare Server 2.02 on Windows Server 2003 R2 Standard. The Host is also Windows Server 2003 R2 Standard. I had the VMware Tools installed and set to sync the time. I did everything imaginable that I found on various internet sites. We still had horrendous drift, although it had shrunk from 15 minutes or more down to the 3 or 4 minute range.

Finally in the vmware.log I found this entry (resides in the folder as the .vmx file): "Your host system does not guarantee synchronized TSCs across different CPUs, so please set the /usepmtimer option in your Windows Boot.ini file to ensure that timekeeping is reliable. See Microsoft KB http://support.microsoft.com/kb... for details and Microsoft KB http://support.microsoft.com/kb... for additional information."

Cause: This problem occurs when the computer has the AMD Cool'n'Quiet technology (AMD dual cores) enabled in the BIOS or some Intel multi core processors. Multi core or multiprocessor systems may encounter Time Stamp Counter (TSC) drift when the time between different cores is not synchronized. The operating systems which use TSC as a timekeeping resource may experience the issue. Newer operating systems typically do not use the TSC by default if other timers are available in the system which can be used as a timekeeping source. Other available timers include the PM_Timer and the High Precision Event Timer (HPET). Resolution: To resolve this problem check with the hardware vendor to see if a new driver/firmware update is available to fix the issue.

Note The driver installation may add the /usepmtimer switch in the Boot.ini file.

Once this (/usepmtimer switch) was done the clock was dead on time.

<c:if test="${fn:contains(task.subscribers, customer)}">

This works fine for me.

I hope this clarifies those two:

x | 2

0001 //x
0010 //2

0011 //result = 3

x & 1

0001 //x
0001 //1

0001 //result = 1

type java -version in command prompt, it will give you the installed version of java on your system.

Attach a String() string method to any named type and enjoy any custom "ToString" functionality:

package main

import "fmt"

type bin int

func (b bin) String() string {
        return fmt.Sprintf("%b", b)
}

func main() {
        fmt.Println(bin(42))
}

Playground: http://play.golang.org/p/Azql7_pDAA

Output

101010

It was now the third time I googled myself to this SO post as I always forget how to mock an @Value field. Though the accepted answer is correct, I always need some time to get the "setField" call right, so at least for myself I paste an example snippet here:

Production class:

@Value("#{myProps[‘some.default.url']}")
private String defaultUrl;

Test class:

import org.springframework.test.util.ReflectionTestUtils;

ReflectionTestUtils.setField(instanceUnderTest, "defaultUrl", "http://foo");
// Note: Don't use MyClassUnderTest.class, use the instance you are testing itself
// Note: Don't use the referenced string "#{myProps[‘some.default.url']}", 
//       but simply the FIELDs name ("defaultUrl")

Use this in your code:

String.valueOf(x);

In short: If you'are absolutely sure all new objects fail somecond() check, then your code works fine, it just wastes some time iterating the newly added objects.

Before giving a proper answer, you have to understand why it considers a bad idea to change list/dict while iterating. When using for statement, Python tries to be clever, and returns a dynamically calculated item each time. Take list as example, python remembers a index, and each time it returns l[index] to you. If you are changing l, the result l[index] can be messy.

NOTE: Here is a stackoverflow question to demonstrate this.

The worst case for adding element while iterating is infinite loop, try(or not if you can read a bug) the following in a python REPL:

import random

l = [0]
for item in l:
    l.append(random.randint(1, 1000))
    print item

It will print numbers non-stop until memory is used up, or killed by system/user.

Understand the internal reason, let's discuss the solutions. Here are a few:

1. make a copy of origin list

Iterating the origin list, and modify the copied one.

result = l[:]
for item in l:
    if somecond(item):
        result.append(Obj())

2. control when the loop ends

Instead of handling control to python, you decides how to iterate the list:

length = len(l)
for index in range(length):
    if somecond(l[index]):
        l.append(Obj())

Before iterating, calculate the list length, and only loop length times.

3. store added objects in a new list

Instead of modifying the origin list, store new object in a new list and concatenate them afterward.

added = [Obj() for item in l if somecond(item)]
l.extend(added)

This might be more desirable, that is use float instead

SELECT fullName, CAST(totalBal as float) totalBal FROM client_info ORDER BY totalBal DESC

You can use the function revalue from the package plyr to replace values in a factor vector.

In your example to replace the factor virginica by setosa:

 data(iris)
 library(plyr)
 revalue(iris$Species, c("virginica" = "setosa")) -> iris$Species

Here is a little code. It works (for me) at any subsequent html code change of the WebBrowser control. You may adapt it to your specific needs.

    static public void SetWebBrowserHtml(WebBrowser Browser, string HtmlText)
    {
        if (Browser != null)
        {
            if (string.IsNullOrWhiteSpace(HtmlText))
            {
                // Putting a div inside body forces control to use div instead of P (paragraph)
                // when the user presses the enter button
                HtmlText = 
                        @"<html>
                    <head>
                    <meta http-equiv=""Content-Type"" content=""text/html; charset=UTF-8"" />
                    </head>
                      <div></div>
                    <body>
                    </body>
                    </html>";
            }

            if (Browser.Document == null)
            {
                Browser.Navigate("about:blank");

                //Wait for document to finish loading
                while (Browser.ReadyState != WebBrowserReadyState.Complete)
                {
                    Application.DoEvents();
                    System.Threading.Thread.Sleep(5);
                }
            }

            // Write html code
            dynamic Doc = Browser.Document.DomDocument;
            Doc.open();
            Doc.write(HtmlText);
            Doc.close();


            // Add scripts here 
            /*  
            dynamic Doc = Document.DomDocument;
            dynamic Script = Doc.getElementById("MyScriptFunctions");
            if (Script == null)
            {
                Script = Doc.createElement("script");
                Script.id = "MyScriptFunctions";
                Script.text = JavascriptFunctionsSourcecode;
                Doc.appendChild(Script);
            }                 
            */



            // Enable contentEditable   
            /*  
            if (Browser.Document.Body != null)
            {
                if (Browser.Version.Major >= 9)
                    Browser.Document.Body.SetAttribute("contentEditable", "true");
            }             
             */

            // Attach event handlers
            // Browser.Document.AttachEventHandler("onkeyup", BrowserKeyUp);
            // Browser.Document.AttachEventHandler("onkeypress", BrowserKeyPress);
            // etc...
        }
    }        

tl;dr: It's nowadays implemented into Laravel, see "edit 3" below.

Sadly, as of today there are some caveats with the ->orderBy(DB::raw('RAND()')) proposed solution:

• It isn't DB-agnostic. e.g. SQLite and PostgreSQL use RANDOM()

• Even worse, this solution isn't applicable anymore since this change:

  $direction = strtolower($direction) == 'asc' ? 'asc' : 'desc';

edit: Now you can use the orderByRaw() method: ->orderByRaw('RAND()'). However this is still not DB-agnostic.

FWIW, CodeIgniter implements a special RANDOM sorting direction, which is replaced with the correct grammar when building query. Also it seems to be fairly easy to implement. Looks like we have a candidate for improving Laravel :)

update: here is the issue about this on GitHub, and my pending pull request.

edit 2: Let's cut the chase. Since Laravel 5.1.18 you can add macros to the query builder:

use Illuminate\Database\Query\Builder;

Builder::macro('orderByRandom', function () {

    $randomFunctions = [
        'mysql'  => 'RAND()',
        'pgsql'  => 'RANDOM()',
        'sqlite' => 'RANDOM()',
        'sqlsrv' => 'NEWID()',
    ];

    $driver = $this->getConnection()->getDriverName();

    return $this->orderByRaw($randomFunctions[$driver]);
});

Usage:

User::where('active', 1)->orderByRandom()->limit(10)->get();

DB::table('users')->where('active', 1)->orderByRandom()->limit(10)->get();

edit 3: Finally! Since Laravel 5.2.33 (changelog, PR #13642) you can use the native method inRandomOrder():

User::where('active', 1)->inRandomOrder()->limit(10)->get();

DB::table('users')->where('active', 1)->inRandomOrder()->limit(10)->get();

Regarding tables names, case, etc, the prevalent convention is:

• SQL keywords: UPPER CASE
• names (identifiers): lower_case_with_underscores

For example:

UPDATE my_table SET name = 5;

This is not written in stone, but the bit about identifiers in lower case is highly recommended, IMO. Postgresql treats identifiers case insensitively when not quoted (it actually folds them to lowercase internally), and case sensitively when quoted; many people are not aware of this idiosyncrasy. Using always lowercase you are safe. Anyway, it's acceptable to use camelCase or PascalCase (or UPPER_CASE), as long as you are consistent: either quote identifiers always or never (and this includes the schema creation!).

I am not aware of many more conventions or style guides. Surrogate keys are normally made from a sequence (usually with the serial macro), it would be convenient to stick to that naming for those sequences if you create them by hand (tablename_colname_seq).

See also some discussion here, here and (for general SQL) here, all with several related links.

Note: Postgresql 10 introduced identity columns as an SQL-compliant replacement for serial.

I had to restart the browser after changing the ip address (laptop wireless DHCP) which was my "cross-host" I was referring to in my web app, which resolved the issue.

Also make sure all the cors headers being added by your browser/host are accepted/allowed by including then in the cors.allowed.headers