Programs & Examples On #Camping

JSONArray jsonArray = new JSONArray(yourJsonString);

for (int i = 0; i < jsonArray.length(); i++) {
     JSONObject obj1 = jsonArray.getJSONObject(i);
     JSONArray results = patient.getJSONArray("results");
     String indexForPhone =  patientProfile.getJSONObject(0).getString("indexForPhone"));
}

Change to JSONArray, then convert to JSONObject.

In your example propertyInfo.GetValue(this, null) should work. Consider altering GetNamesAndTypesAndValues() as follows:

public void GetNamesAndTypesAndValues()
{
  foreach (PropertyInfo propertyInfo in allClassProperties)
  {
    Console.WriteLine("{0} [type = {1}] [value = {2}]",
      propertyInfo.Name,
      propertyInfo.PropertyType,
      propertyInfo.GetValue(this, null));
  }
}

Or you could use the known solution to this problem and use SSL. Self-signed certs are free and its a personal project right?

Yes, you can make a button not submit a form by adding an attribute of type of value button: <button type="button"><button>

hasOwnProperty() is a nice property to validate object keys. Example:

var obj = {a:1, b:2};

obj.hasOwnProperty('a') // true

In build.gradle add wrapper { gradleVersion = '6.0' }

Service references deal with endpoints and bindings, which are completely configurable. They let you point your client proxy to a WCF via any transport protocol (HTTP, TCP, Shared Memory, etc)

They are designed to work with WCF.

If you use a WebProxy, you are pretty much binding yourself to using WCF over HTTP

This is how you get around that in an easy non-complicated way.
Instead of using sheet(x).range use Activesheet.range("range").select

If you want to do something like,User enter url "www.xxxxxx.com/views/root/" & default page is displayed then I guess you have to set the default/home/welcome page attribute in IIS. But if user just enters "www.xxxxxx.com" and you still want to forward to your url, then you have write a line of code in the default page to forward to your desired url. This default page should be in root directory of your application, so www.xxxxx.com will load www.xxxx.com/index.html which will redirect the user to your desired url

I don’t see what worked for me listed out here so I will include it should anybody be in my situation.

My situation, I have a remote repository of maybe 10,000 files and I need to build an RPM file for my Linux system. The build of the RPM includes a git clone of everything. All I need is one file to start the RPM build. I can clone the entire source tree which does what I need but it takes an extra two minutes to download all those files when all I need is one. I tried to use the git archive option discussed and I got “fatal: Operation not supported by protocol.” It seems I have to get some sort of archive option enabled on the server and my server is maintained by bureaucratic thugs that seem to enjoy making it difficult to get things done.

What I finally did was I went into the web interface for bitbucket and viewed the one file I needed. I did a right click on the link to download a raw copy of the file and selected “copy shortcut” from the resulting popup. I could not just download the raw file because I needed to automate things and I don’t have a browser interface on my Linux server.

For the sake of discussion, that resulted in the URL:

https://ourArchive.ourCompany.com/projects/ThisProject/repos/data/raw/foo/bar.spec?at=refs%2Fheads%2FTheBranchOfInterest

I could not directly download this file from the bitbucket repository because I needed to sign in first. After a little digging, I found this worked: On Linux:

echo "myUser:myPass123"| base64
bXlVc2VyOm15UGFzczEyMwo=

curl -H 'Authorization: Basic bXlVc2VyOm15UGFzczEyMwo=' 'https://ourArchive.ourCompany.com/projects/ThisProject/repos/data/raw/foo/bar.spec?at=refs%2Fheads%2FTheBranchOfInterest' > bar.spec

This combination allowed me to download the one file I needed to build everything else.

Christian's answer works well and shows how you can loop through each hash table item using the GetEnumerator method. You can also loop through using the keys property. Here is an example how:

$hash = @{
    a = 1
    b = 2
    c = 3
}
$hash.Keys | % { "key = $_ , value = " + $hash.Item($_) }

Output:

key = c , value = 3
key = a , value = 1
key = b , value = 2

Use the browser/chrome postman plugin to check the CORS/SOP like a website. Use desktop application instead to avoid these controls.

The simple answer is, whenever an operation is impossible (because of either application OR because it would violate business logic). If a method is invoked and it impossible to do what the method was written to do, throw an Exception. A good example is that constructors always throw ArgumentExceptions if an instance cannot be created using the supplied parameters. Another example is InvalidOperationException, which is thrown when an operation cannot be performed because of the state of another member or members of the class.

In your case, if a method like Login(username, password) is invoked, if the username is not valid, it is indeed correct to throw a UserNameNotValidException, or PasswordNotCorrectException if password is incorrect. The user cannot be logged in using the supplied parameter(s) (i.e. it's impossible because it would violate authentication), so throw an Exception. Although I might have your two Exceptions inherit from ArgumentException.

Having said that, if you wish NOT to throw an Exception because a login failure may be very common, one strategy is to instead create a method that returns types that represent different failures. Here's an example:

{ // class
    ...

    public LoginResult Login(string user, string password)
    {
        if (IsInvalidUser(user))
        {
            return new UserInvalidLoginResult(user);
        }
        else if (IsInvalidPassword(user, password))
        {
            return new PasswordInvalidLoginResult(user, password);
        }
        else
        {
            return new SuccessfulLoginResult();
        }
    }

    ...
}

public abstract class LoginResult
{
    public readonly string Message;

    protected LoginResult(string message)
    {
        this.Message = message;
    }
}

public class SuccessfulLoginResult : LoginResult
{
    public SucccessfulLogin(string user)
        : base(string.Format("Login for user '{0}' was successful.", user))
    { }
}

public class UserInvalidLoginResult : LoginResult
{
    public UserInvalidLoginResult(string user)
        : base(string.Format("The username '{0}' is invalid.", user))
    { }
}

public class PasswordInvalidLoginResult : LoginResult
{
    public PasswordInvalidLoginResult(string password, string user)
        : base(string.Format("The password '{0}' for username '{0}' is invalid.", password, user))
    { }
}

Most developers are taught to avoid Exceptions because of the overhead caused by throwing them. It's great to be resource-conscious, but usually not at the expense of your application design. That is probably the reason you were told not to throw your two Exceptions. Whether to use Exceptions or not usually boils down to how frequently the Exception will occur. If it's a fairly common or an fairly expectable result, this is when most developers will avoid Exceptions and instead create another method to indicate failure, because of the supposed consumption of resources.

Here's an example of avoiding using Exceptions in a scenario like just described, using the Try() pattern:

public class ValidatedLogin
{
    public readonly string User;
    public readonly string Password;

    public ValidatedLogin(string user, string password)
    {
        if (IsInvalidUser(user))
        {
            throw new UserInvalidException(user);
        }
        else if (IsInvalidPassword(user, password))
        {
            throw new PasswordInvalidException(password);
        }

        this.User = user;
        this.Password = password;
    }

    public static bool TryCreate(string user, string password, out ValidatedLogin validatedLogin)
    {
        if (IsInvalidUser(user) || 
            IsInvalidPassword(user, password))
        {
            return false;
        }

        validatedLogin = new ValidatedLogin(user, password);

        return true;
    }
}

Firstly, your URL definition does not accept any parameters at all. If you want parameters to be passed from the URL into the view, you need to define them in the urlconf.

Secondly, it's not at all clear what you are expecting to happen to the cleaned_data dictionary. Don't forget you can't redirect to a POST - this is a limitation of HTTP, not Django - so your cleaned_data either needs to be a URL parameter (horrible) or, slightly better, a series of GET parameters - so the URL would be in the form:

/link/mybackend/?field1=value1&field2=value2&field3=value3

and so on. In this case, field1, field2 and field3 are not included in the URLconf definition - they are available in the view via request.GET.

So your urlconf would be:

url(r'^link/(?P<backend>\w+?)/$', my_function)

and the view would look like:

def my_function(request, backend):
   data = request.GET

and the reverse would be (after importing urllib):

return "%s?%s" % (redirect('my_function', args=(backend,)),
                  urllib.urlencode(form.cleaned_data))

Edited after comment

The whole point of using redirect and reverse, as you have been doing, is that you go to the URL - it returns an Http code that causes the browser to redirect to the new URL, and call that.

If you simply want to call the view from within your code, just do it directly - no need to use reverse at all.

That said, if all you want to do is store the data, then just put it in the session:

request.session['temp_data'] = form.cleaned_data

This happened to me because Tomcat was still in the process of downloading (Download and Install). The message disappeared after a few minutes.

The eclipse window should really have some type of progress indicator showing download status.

In addition to anyListOf above, you can always specify generics explicitly using this syntax:

when(mock.process(Matchers.<List<Bar>>any(List.class)));

Java 8 newly allows type inference based on parameters, so if you're using Java 8, this may work as well:

when(mock.process(Matchers.any()));

Remember that neither any() nor anyList() will apply any checks, including type or null checks. In Mockito 2.x, any(Foo.class) was changed to mean "any instanceof Foo", but any() still means "any value including null".

NOTE: The above has switched to ArgumentMatchers in newer versions of Mockito, to avoid a name collision with org.hamcrest.Matchers. Older versions of Mockito will need to keep using org.mockito.Matchers as above.

you need to take out the quotes:

soda = a + b

(You want to refer to the variables a and b, not the strings "a" and "b")

order by -cast([Next_Contact_Date] as bigint) desc

I found the following css in order to style a Bootstrap input for a jquery autocomplete:

https://gist.github.com/daz/2168334#file-style-scss

.ui-autocomplete {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    float: left;
    display: none;
    min-width: 160px;
    _width: 160px;
    padding: 4px 0;
    margin: 2px 0 0 0;
    list-style: none;
    background-color: #ffffff;
    border-color: #ccc;
    border-color: rgba(0, 0, 0, 0.2);
    border-style: solid;
    border-width: 1px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    -webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    -moz-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    -webkit-background-clip: padding-box;
    -moz-background-clip: padding;
    background-clip: padding-box;
    *border-right-width: 2px;
    *border-bottom-width: 2px;
}
.ui-menu-item > a.ui-corner-all {
    display: block;
    padding: 3px 15px;
    clear: both;
    font-weight: normal;
    line-height: 18px;
    color: #555555;
    white-space: nowrap;
}
.ui-state-hover, &.ui-state-active {
      color: #ffffff;
      text-decoration: none;
      background-color: #0088cc;
      border-radius: 0px;
      -webkit-border-radius: 0px;
      -moz-border-radius: 0px;
      background-image: none;
    }

The solutions is in fact

p{
    white-space:normal;
}

You can change the break behaviors by modifying, word-break property

p{
    word-break: break-all; // will break at end of line 
}

break-all: Will break the string at the very end, breaking at the last word word-break: is more of pretty brake, will break nicely for example at ? point normal: same as word-break

In Spring MVC you get the HtppServletResponce object by default .

   @RequestMapping("/myPath.htm")
    public ModelAndView add(HttpServletRequest request,
         HttpServletResponse response) throws Exception{
            //Do service call passing the response
    return new ModelAndView("CustomerAddView");
    }

//Service code
Cookie myCookie =
  new Cookie("name", "val");
  response.addCookie(myCookie);

Try this.

public string Post(FormDataCollection form) {
    string par1 = form.Get("par1");

    // ...
}

It works for me with webapi 2

I like the answer from 30thh using Iterators from Guava. However, from some frameworks I get null instead of an empty array, and Iterators.forArray(array) does not handle that well. So I came up with this helper method, which you can call with Iterator<String> it = emptyIfNull(array);

public static <F> UnmodifiableIterator<F> emptyIfNull(F[] array) {
    if (array != null) {
        return Iterators.forArray(array);
    }
    return new UnmodifiableIterator<F>() {
        public boolean hasNext() {
            return false;
        }

        public F next() {
            return null;
        }
    };
}

Show / hide by mouse click:

<script language="javascript">

    function toggle() {

        var ele = document.getElementById("toggleText");
        var text = document.getElementById("displayText");

        if (ele.style.display == "block") {

            ele.style.display = "none";
            text.innerHTML = "show";
        }
        else {

            ele.style.display = "block";
            text.innerHTML = "hide";
        }
    }
</script>

<a id="displayText" href="javascript:toggle();">show</a> <== click Here

<div id="toggleText" style="display: none"><h1>peek-a-boo</h1></div>

Source: Here

You can call bringToFront() on the view you want to get in the front

This is an example:

    yourView.bringToFront();

only adding android:padding="0dp" work for me

<android.support.v7.widget.Toolbar
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="60dp"
    android:padding="0dp"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

if you what to obtain "ONE" by giving in 100 then

initialize hash map by

hashmap = new HashMap<Object,String>();

haspmap.put(100,"one");

and retrieve value by hashMap.get(100)

hope that helps.

Also remember to give NETWORK SERVICE permission to the folder:

1. Right-click Data folder
2. Select Properties
3. Select Security tab
4. Click Advanced
5. Click Change Permissions...
6. Click Add...
7. Type NETWORK SERVICE
8. Click Check Names
9. Click OK
10. Select Full Control
11. Click OK – four times
12. Start MySQL service

System.out.print(a + "" + b + "" + c);

Here is a better way for doing it. Hope this helps

protected void onPostExecute(String result) {
                Log.v(TAG + " result);


                if (!result.equals("")) {

                    // Set up variables for API Call
                    ArrayList<String> list = new ArrayList<String>();

                    try {
                        JSONArray jsonArray = new JSONArray(result);

                        for (int i = 0; i < jsonArray.length(); i++) {

                            list.add(jsonArray.get(i).toString());

                        }//end for
                    } catch (JSONException e) {
                        Log.e(TAG, "onPostExecute > Try > JSONException => " + e);
                        e.printStackTrace();
                    }


                    adapter = new ArrayAdapter<String>(ListViewData.this, android.R.layout.simple_list_item_1, android.R.id.text1, list);
                    listView.setAdapter(adapter);
                    listView.setOnItemClickListener(new OnItemClickListener() {
                        @Override
                        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                            // ListView Clicked item index
                            int itemPosition = position;

                            // ListView Clicked item value
                            String itemValue = (String) listView.getItemAtPosition(position);

                            // Show Alert
                            Toast.makeText( ListViewData.this, "Position :" + itemPosition + "  ListItem : " + itemValue, Toast.LENGTH_LONG).show();
                        }
                    });

                    adapter.notifyDataSetChanged();
...

You don't have the right to execute it, although you have enough permissions to create it.

For more information, see GRANT Object Permissions (Transact-SQL)

Using List.tabulate, like this,

List.tabulate(3)( x => 2*x )
res: List(0, 2, 4)

List.tabulate(3)( _ => Math.random )
res: List(0.935455779102479, 0.6004888906328091, 0.3425278797788426)

List.tabulate(3)( _ => (Math.random*10).toInt )
res: List(8, 0, 7)

In Access, click Create > Module and paste in the following code

Public Function ConvertMyStringToDateTime(strIn As String) As Date
ConvertMyStringToDateTime = CDate( _
        Mid(strIn, 1, 4) & "-" & Mid(strIn, 5, 2) & "-" & Mid(strIn, 7, 2) & " " & _
        Mid(strIn, 9, 2) & ":" & Mid(strIn, 11, 2) & ":" & Mid(strIn, 13, 2))
End Function

Hit Ctrl+S and save the module as modDateConversion.

Now try using a query like

Select * from Events
Where Events.[Date] > ConvertMyStringToDateTime("20130423014854")

--- Edit ---

Alternative solution avoiding user-defined VBA function:

SELECT * FROM Events
WHERE Format(Events.[Date],'yyyyMMddHhNnSs') > '20130423014854'

Just use /\s+/ against '' as a splitter. In this case all "extra" blanks were removed. Usually this particular behaviour is required. So, in you case it will be:

my $line = "file1.gz file1.gz file3.gz";
my @abc = split(/\s+/, $line);

Most of it is explained in the GC Tuning Guide (which you would do well to read anyway).

The command line option -verbose:gc causes information about the heap and garbage collection to be printed at each collection. For example, here is output from a large server application:

[GC 325407K->83000K(776768K), 0.2300771 secs]
[GC 325816K->83372K(776768K), 0.2454258 secs]
[Full GC 267628K->83769K(776768K), 1.8479984 secs]

Here we see two minor collections followed by one major collection. The numbers before and after the arrow (e.g., 325407K->83000K from the first line) indicate the combined size of live objects before and after garbage collection, respectively. After minor collections the size includes some objects that are garbage (no longer alive) but that cannot be reclaimed. These objects are either contained in the tenured generation, or referenced from the tenured or permanent generations.

The next number in parentheses (e.g., (776768K) again from the first line) is the committed size of the heap: the amount of space usable for java objects without requesting more memory from the operating system. Note that this number does not include one of the survivor spaces, since only one can be used at any given time, and also does not include the permanent generation, which holds metadata used by the virtual machine.

The last item on the line (e.g., 0.2300771 secs) indicates the time taken to perform the collection; in this case approximately a quarter of a second.

The format for the major collection in the third line is similar.

The format of the output produced by -verbose:gc is subject to change in future releases.

I'm not certain why there's a PSYoungGen in yours; did you change the garbage collector?

1. Select the <html> tag in Elements.
2. Do CTRL-C.
3. Check if there is only lefting <!DOCTYPE html> before the <html>.

Here's a cross-browser CSS-only solution. Hope it helps!

DEMO

.progress .progress-bar {_x000D_
    -moz-animation-name: animateBar;_x000D_
    -moz-animation-iteration-count: 1;_x000D_
    -moz-animation-timing-function: ease-in;_x000D_
    -moz-animation-duration: .4s;_x000D_
_x000D_
    -webkit-animation-name: animateBar;_x000D_
    -webkit-animation-iteration-count: 1;_x000D_
    -webkit-animation-timing-function: ease-in;_x000D_
    -webkit-animation-duration: .4s;_x000D_
_x000D_
    animation-name: animateBar;_x000D_
    animation-iteration-count: 1;_x000D_
    animation-timing-function: ease-in;_x000D_
    animation-duration: .4s;_x000D_
}_x000D_
_x000D_
@-moz-keyframes animateBar {_x000D_
    0% {-moz-transform: translateX(-100%);}_x000D_
    100% {-moz-transform: translateX(0);}_x000D_
}_x000D_
@-webkit-keyframes animateBar {_x000D_
    0% {-webkit-transform: translateX(-100%);}_x000D_
    100% {-webkit-transform: translateX(0);}_x000D_
}_x000D_
@keyframes animateBar {_x000D_
    0% {transform: translateX(-100%);}_x000D_
    100% {transform: translateX(0);}_x000D_
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
<div class="container">_x000D_
  _x000D_
  <h3>Progress bar animation on load</h3>_x000D_
  _x000D_
  <div class="progress">_x000D_
    <div class="progress-bar progress-bar-success" style="width: 75%;"></div>_x000D_
  </div>_x000D_
</div>

I thought I'd try code this up for fun:

graph = {
        '1': ['2', '3', '4'],
        '2': ['5', '6'],
        '5': ['9', '10'],
        '4': ['7', '8'],
        '7': ['11', '12']
        }

def bfs(graph, forefront, end):
    # assumes no cycles

    next_forefront = [(node, path + ',' + node) for i, path in forefront if i in graph for node in graph[i]]

    for node,path in next_forefront:
        if node==end:
            return path
    else:
        return bfs(graph,next_forefront,end)

print bfs(graph,[('1','1')],'11')

# >>>
# 1, 4, 7, 11

If you want cycles you could add this:

for i, j in for_front: # allow cycles, add this code
    if i in graph:
        del graph[i]

Like this:

for pet in pets :
  print(pet)

In fact, Python only has foreach style for loops.

When creating a generator from a mutable object (like a list) be aware that the generator will get evaluated on the state of the list at time of using the generator, not at time of the creation of the generator:

>>> mylist = ["a", "b", "c"]
>>> gen = (elem + "1" for elem in mylist)
>>> mylist.clear()
>>> for x in gen: print (x)
# nothing

If there is any chance of your list getting modified (or a mutable object inside that list) but you need the state at creation of the generator you need to use a list comprehension instead.

If I understand your question correctly you want records from the settings database if they don't have a join accross to the character_settings table or if that joined record has character_id = 1.

You should therefore do

SELECT `settings`.*, `character_settings`.`value`
FROM (`settings`)
LEFT OUTER JOIN `character_settings` 
ON `character_settings`.`setting_id` = `settings`.`id`
WHERE `character_settings`.`character_id` = '1' OR
`character_settings`.character_id is NULL

A simple check like this will let you know if it exists/defined:

if (this.onsubmit)
{
  // do stuff;
}

If you luckily had the same files opened on another editor (eg. Sublime Text) try a ctrl-z on those. It just saved me..

The latest Netbeans IDE (6.1) has a pretty solid Ruby support.

You can check it out here.

Using Powershell on Windows10 in 2018, what worked for me was simply to replace double quotes " by simple quotes '. Adding the backtick before the space, as suggested in an answer, broke the path.

What about this:

int[] a = {1,2,3}; Integer[] b = ArrayUtils.toObject(a); List<Integer> c = Arrays.asList(b);

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd">

     <proxies>
       <proxy>
          <active>true</active>
          <protocol>http</protocol>
          <host>proxy.somewhere.com</host>
          <port>8080</port>
          <username>proxyuser</username>
          <password>somepassword</password>
          <nonProxyHosts>www.google.com|*.somewhere.com</nonProxyHosts>
        </proxy>
      </proxies>

    </settings>

Window > Preferences > Maven > User Settings

To increase the phpMyAdmin Session Timeout, open config.inc.php in the root phpMyAdmin directory and add this setting (anywhere).

$cfg['LoginCookieValidity'] = <your_new_timeout>;

Where <your_new_timeout> is some number larger than 1800.

Note:

Always keep on mind that a short cookie lifetime is all well and good for the development server. So do not do this on your production server.

For more modularity and in case you have many background images that you want to incorporate wherever you want you can for each image create a class :

.background-image1  
{
background: url(image1.jpg);
 }
.background-image2  
{
background: url(image2.jpg);
 }

and then insert the image wherever you want by adding a div

<div class='background-image1'>
    <div class="page-header text-center", style='margin: 20px 0 0px;'>
         <h1>blabaaboabaon</h1>
    </div>
</div>

Try this, it works for me if you also need to support ios7, it is based on the transparency of UItoolBar:

[self.navigationController.navigationBar setBackgroundImage:[UIImage new]
                                                  forBarMetrics:UIBarMetricsDefault];
    self.navigationController.navigationBar.shadowImage = [UIImage new];
    self.navigationController.navigationBar.translucent = YES;
    self.navigationController.view.backgroundColor = [UIColor clearColor];
    UIToolbar* blurredView = [[UIToolbar alloc] initWithFrame:self.navigationController.navigationBar.bounds];
    [blurredView setBarStyle:UIBarStyleBlack];
    [blurredView setBarTintColor:[UIColor redColor]];
    [self.navigationController.navigationBar insertSubview:blurredView atIndex:0];

There are a couple issues here. First, you need to make sure to bind your JSON object back to the model in the controller. This is done by changing

data: JSON.stringify(usersRoles),

to

data: { model: JSON.stringify(usersRoles) },

Secondly, you aren't binding types correctly with your jquery call. If you remove

contentType: "application/json; charset=utf-8",

it will inherently bind back to a string.

All together, use the first ActionResult method and the following jquery ajax call:

    jQuery.ajax({
        type: "POST",
        url: "@Url.Action("AddUser")",
        dataType: "json",
        data: { model: JSON.stringify(usersRoles) },
        success: function (data) { alert(data); },
        failure: function (errMsg) {
        alert(errMsg);
        }
   });

Although this question is old and answered, I've stumbled across a problem with some of the solutions and decided to add my suggestion into the mix.

The problem with some of the solutions is that they build a single command string. This creates issues when some parameters contain spaces, especially java.home.

For example, on windows, the line

final String javaBin = System.getProperty("java.home") + File.separator + "bin" + File.separator + "java";

Might return something like this:C:\Program Files\Java\jre7\bin\java

This string has to be wrapped in quotes or escaped due to the space in Program Files. Not a huge problem, but somewhat annoying and error prone, especially in cross platform applications.

Therefore my solution builds the command as an array of commands:

public static void restart(String[] args) {

        ArrayList<String> commands = new ArrayList<String>(4 + jvmArgs.size() + args.length);
        List<String> jvmArgs = ManagementFactory.getRuntimeMXBean().getInputArguments();

        // Java
        commands.add(System.getProperty("java.home") + File.separator + "bin" + File.separator + "java");

        // Jvm arguments
        for (String jvmArg : jvmArgs) {
            commands.add(jvmArg);
        }

        // Classpath
        commands.add("-cp");
        commands.add(ManagementFactory.getRuntimeMXBean().getClassPath());

        // Class to be executed
        commands.add(BGAgent.class.getName());

        // Command line arguments
        for (String arg : args) {
            commands.add(arg);
        }

        File workingDir = null; // Null working dir means that the child uses the same working directory

        String[] env = null; // Null env means that the child uses the same environment

        String[] commandArray = new String[commands.size()];
        commandArray = commands.toArray(commandArray);

        try {
            Runtime.getRuntime().exec(commandArray, env, workingDir);
            System.exit(0);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

i know this is way too late. but i had the same requirement. i solved like this

<android.support.v7.widget.CardView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:cardUseCompatPadding="true"
app:cardElevation="4dp"
app:cardCornerRadius="3dp" >

<!-- put whatever you want -->

</android.support.v7.widget.CardView>

you need to add dependency:

compile 'com.android.support:cardview-v7:25.0.1'

For the official CLI client "psql" see here. And "pgAdmin3" 1.10 (still in beta) has "pgScript".

Check to make sure that both score and array[x] are numerical types. You might be comparing an integer to a string...which is heartbreakingly possible in Python 2.x.

>>> 2 < "2"
True
>>> 2 > "2"
False
>>> 2 == "2"
False

Edit

Further explanation: How does Python compare string and int?

This is how I made it without extra css or jquery:

<div class="form-group">
    <div class="input-group">
        <label class="sr-only" for="extra3">Extra name 3</label>
        <input type="text" id="extra3" class="form-control" placeholder="Extra name">
        <span class="input-group-addon">
            <label class="checkbox-inline">
               Mandatory? <input type="checkbox" id="inlineCheckbox5" value="option1">
            </label>
        </span>
        <span class="input-group-addon">
             <label class="checkbox-inline">
               Per person? <input type="checkbox" id="inlineCheckbox6" value="option2">
             </label>
        </span>
        <span class="input-group-addon">
            To be paid? 
            <select>
                <option value="online">Online</option>
                <option value="on spot">On Spot</option>
            </select>
        </span>
    </div>
</div>

this would help.. from google apis demos

private List<Marker> markerList = new ArrayList<>();
Marker marker = mGoogleMap.addMarker(new MarkerOptions().position(geoLatLng)
                .title(title));
markerList.add(marker);
    // Pan to see all markers in view.
    // Cannot zoom to bounds until the map has a size.
    final View mapView = getSupportFragmentManager().findFragmentById(R.id.map).getView();
    if (mapView!=null) {
        if (mapView.getViewTreeObserver().isAlive()) {
            mapView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                @SuppressWarnings("deprecation") // We use the new method when supported
                @SuppressLint("NewApi") // We check which build version we are using.
                @Override
                public void onGlobalLayout() {
                    //Calculate the markers to get their position
                    LatLngBounds.Builder b = new LatLngBounds.Builder();
                    for (Marker m : markerList) {
                        b.include(m.getPosition());
                    }
                    // also include current location to include in the view
                    b.include(new LatLng(mLocation.getLatitude(),mLocation.getLongitude()));

                    LatLngBounds bounds = b.build();
                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                        mapView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    } else {
                        mapView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    }
                    mGoogleMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, 50));
                }
            });
        }
    }

for clear info look at this url. https://github.com/googlemaps/android-samples/blob/master/ApiDemos/app/src/main/java/com/example/mapdemo/MarkerDemoActivity.java

I don't use nested classes much, but I do use them now and then. Especially when I define some kind of data type, and I then want to define a STL functor designed for that data type.

For example, consider a generic Field class that has an ID number, a type code and a field name. If I want to search a vector of these Fields by either ID number or name, I might construct a functor to do so:

class Field
{
public:
  unsigned id_;
  string name_;
  unsigned type_;

  class match : public std::unary_function<bool, Field>
  {
  public:
    match(const string& name) : name_(name), has_name_(true) {};
    match(unsigned id) : id_(id), has_id_(true) {};
    bool operator()(const Field& rhs) const
    {
      bool ret = true;
      if( ret && has_id_ ) ret = id_ == rhs.id_;
      if( ret && has_name_ ) ret = name_ == rhs.name_;
      return ret;
    };
    private:
      unsigned id_;
      bool has_id_;
      string name_;
      bool has_name_;
  };
};

Then code that needs to search for these Fields can use the match scoped within the Field class itself:

vector<Field>::const_iterator it = find_if(fields.begin(), fields.end(), Field::match("FieldName"));

It sounds like some of your styles are being reset.

By default in most browsers, uls and ols have margin and padding added to them.

You can override this (and many do) by adding a line to your css like so

ul, ol {  //THERE MAY BE OTHER ELEMENTS IN THE LIST
    margin:0;
    padding:0;
}

In this case, you would remove the element from this list or add a margin/padding back, like so

ul{
    margin:1em;
}

Example: http://jsfiddle.net/jasongennaro/vbMbQ/1/

You may want to use the Continue statement to continue with the innermost loop.

Excerpt from PowerShell help file:

In a script, the continue statement causes program flow to move immediately to the top of the innermost loop controlled by any of these statements:

• for
• foreach
• while

It is impossible for any program, in any language, to handle a SIGKILL. This is so it is always possible to terminate a program, even if the program is buggy or malicious. But SIGKILL is not the only means for terminating a program. The other is to use a SIGTERM. Programs can handle that signal. The program should handle the signal by doing a controlled, but rapid, shutdown. When a computer shuts down, the final stage of the shutdown process sends every remaining process a SIGTERM, gives those processes a few seconds grace, then sends them a SIGKILL.

The way to handle this for anything other than kill -9 would be to register a shutdown hook. If you can use (SIGTERM) kill -15 the shutdown hook will work. (SIGINT) kill -2 DOES cause the program to gracefully exit and run the shutdown hooks.

Registers a new virtual-machine shutdown hook.

The Java virtual machine shuts down in response to two kinds of events:

• The program exits normally, when the last non-daemon thread exits or when the exit (equivalently, System.exit) method is invoked, or
• The virtual machine is terminated in response to a user interrupt, such as typing ^C, or a system-wide event, such as user logoff or system shutdown.

I tried the following test program on OSX 10.6.3 and on kill -9 it did NOT run the shutdown hook, as expected. On a kill -15 it DOES run the shutdown hook every time.

public class TestShutdownHook
{
    public static void main(String[] args) throws InterruptedException
    {
        Runtime.getRuntime().addShutdownHook(new Thread()
        {
            @Override
            public void run()
            {
                System.out.println("Shutdown hook ran!");
            }
        });

        while (true)
        {
            Thread.sleep(1000);
        }
    }
}

There isn't any way to really gracefully handle a kill -9 in any program.

In rare circumstances the virtual machine may abort, that is, stop running without shutting down cleanly. This occurs when the virtual machine is terminated externally, for example with the SIGKILL signal on Unix or the TerminateProcess call on Microsoft Windows.

The only real option to handle a kill -9 is to have another watcher program watch for your main program to go away or use a wrapper script. You could do with this with a shell script that polled the ps command looking for your program in the list and act accordingly when it disappeared.

#!/usr/bin/env bash

java TestShutdownHook
wait
# notify your other app that you quit
echo "TestShutdownHook quit"

According to the w3c, cols and rows are both required attributes for textareas. Rows and Cols are the number of characters that are going to fit in the textarea rather than pixels or some other potentially arbitrary value. Go with the rows/cols.

To find the maximum y value of the objects in array:

Math.max.apply(Math, array.map(function(o) { return o.y; }))

The parseInt function allows you to specify a radix for the input string and is limited to integer values.

parseInt('Z', 36) === 35

The Number constructor called as a function will parse the string with a grammar and is limited to base 10 and base 16.

StringNumericLiteral :::
    StrWhiteSpaceopt 
    StrWhiteSpaceopt StrNumericLiteral StrWhiteSpaceopt

StrWhiteSpace :::
    StrWhiteSpaceChar StrWhiteSpaceopt

StrWhiteSpaceChar :::
    WhiteSpace 
    LineTerminator

StrNumericLiteral :::
    StrDecimalLiteral 
    HexIntegerLiteral

StrDecimalLiteral :::
    StrUnsignedDecimalLiteral 
    + StrUnsignedDecimalLiteral 
    - StrUnsignedDecimalLiteral

StrUnsignedDecimalLiteral :::
    Infinity 
    DecimalDigits . DecimalDigitsopt ExponentPartopt 
    . DecimalDigits ExponentPartopt     
    DecimalDigits ExponentPartopt

DecimalDigits :::
    DecimalDigit 
    DecimalDigits DecimalDigit

DecimalDigit ::: one of
    0 1 2 3 4 5 6 7 8 9

ExponentPart :::
    ExponentIndicator SignedInteger

ExponentIndicator ::: one of
    e E

SignedInteger :::
    DecimalDigits 
    + DecimalDigits 
    - DecimalDigits

HexIntegerLiteral :::
    0x HexDigit 
    0X HexDigit 
    HexIntegerLiteral HexDigit

HexDigit ::: one of
    0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F

Locate site.py and add its path in PYTHONPATH. This will solve your problem.

When running a command with lots of output (like a big "make") I want to not only save the output, but also see it:

make install 2>&1 | tee E.make

I reverted back a few commits by running 'git revert commit id' such as:

git revert b2cb7c248d416409f8eb42b561cbff91b0601712

Then i was prompted to commit the revert (just as you would when running 'git commit'). My default terminal program is Vim so i ran:

:wq 

Finally i pushed the change to the repository with:

git push

Another way is to handle the Runnable itself:

Runnable r = new Runnable {
    public void run() {
        if (booleanCancelMember != false) {
            //do what you need
        }
    }
}

Did find the answer on my own. My problem was, that i use two temporary tables for a join and create the second one out of the first one. But the Index was not copied during creation...

CREATE TEMPORARY TABLE tmpLivecheck (tmpid INTEGER NOT NULL AUTO_INCREMENT, PRIMARY    
KEY(tmpid), INDEX(tmpid))
SELECT * FROM tblLivecheck_copy WHERE tblLivecheck_copy.devId = did;

CREATE TEMPORARY TABLE tmpLiveCheck2 (tmpid INTEGER NOT NULL, PRIMARY KEY(tmpid), 
INDEX(tmpid))  
SELECT * FROM tmpLivecheck;

... solved my problem.

Greetings...

If you are using MS Excel 2003 then go to view->Tool bar->Pivot Table From this tool bar we can do refresh by clicking ! this symbol.

I had the same problem after reinstalled my android studio. Here's what I did to make my adb work again:

-path to C:\Users\User\AppData\Local\Android\sdk\platform-tools
-Shift+r.click and start command from here instead.

Apache commons to the rescue again.

assertTrue(CollectionUtils.isEqualCollection(coll1, coll2));

Works like a charm. I don't know why but I found that with collections the following assertEquals(coll1, coll2) doesn't always work. In the case where it failed for me I had two collections backed by Sets. Neither hamcrest nor junit would say the collections were equal even though I knew for sure that they were. Using CollectionUtils it works perfectly.

git rebase -i HEAD^^^

Now mark the ones you want to amend with edit or e (replace pick). Now save and exit.

Now make your changes, then

git add .
git rebase --continue

If you want to add an extra delete remove the options from the commit command. If you want to adjust the message, omit just the --no-edit option.

I had this problem when installing Heroku Toolbelt

This is how I solved the problem

$ ls -l /bin/sh
lrwxrwxrwx 1 root root 4 ago 15  2012 /bin/sh -> dash

As you can see, /bin/sh is a link to "dash" (not bash), and [[ is bash syntactic sugarness. So I just replaced the link to /bin/bash. Careful using rm like this in your system!

$ sudo rm /bin/sh
$ sudo ln -s /bin/bash /bin/sh

You have to find where the Git executable is and then add the folder to the PATH environment variable in file .bash_profile.

Using terminal:

1. Search for Git:

    sudo find / -name git
   

2. Edit the .bash_profile file. Add:

    PATH="<Directory of Git>:$PATH"
   

Git is back :-)

Anyway, I suggest you to install Git using MacPorts. In this way you can easily upgrade your Git instance to the newest release.

If you want a formula to do it then:

=IF(ISNUMBER(SEARCH("*texts are *",A1)),LEFT(A1,FIND("texts are ",A1) + 9) & "WORD",A1)

This will do it. Change `"WORD" To the word you want.

I needed to find the position of an element inside a ListView and used this snippet that works kind of like .offset:

const UIManager = require('NativeModules').UIManager;
const handle = React.findNodeHandle(this.refs.myElement);
UIManager.measureLayoutRelativeToParent(
  handle, 
  (e) => {console.error(e)}, 
  (x, y, w, h) => {
    console.log('offset', x, y, w, h);
  });

This assumes I had a ref='myElement' on my component.

if(mytime.after(fromtime) && mytime.before(totime))
  //mytime is in between

In MySQL DB decimal(4,2) allows entering only a total of 4 digits. As you see in decimal(4,2), it means you can enter a total of 4 digits out of which two digits are meant for keeping after the decimal point.

So, if you enter 100.0 in MySQL database, it will show an error like "Out of Range Value for column".

So, you can enter in this range only: from 00.00 to 99.99.

As @ J_F answered in the comments, using {r echo = T, results = 'hide'}.

I wanted to expand on their answer - there are great resources you can access to determine all possible options for your chunk and output display - I keep a printed copy at my desk!

You can find them either on the RStudio Website under Cheatsheets (look for the R Markdown cheatsheet and R Markdown Reference Guide) or, in RStudio, navigate to the "Help" tab, choose "Cheatsheets", and look for the same documents there.

Finally to set default chunk options, you can run (in your first chunk) something like the following code if you want most chunks to have the same behavior:

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = T,
                      results = "hide")
```

Later, you can modify the behavior of individual chunks like this, which will replace the default value for just the results option.

```{r analysis, results="markup"}
# code here
```

You can do this using Es 6 new feature :

var json1 = [{id:1, name: 'xxx' , ocupation : 'Doctor' }];

var json2 = [{id:2, name: 'xyz' ,ocupation : 'SE'}];

var combineJsonArray = [...json1 , ...json2];

//output should like this [ { id: 1, name: 'xxx', ocupation: 'Doctor' },
  { id: 2, name: 'xyz', ocupation: 'SE' } ]

Or You can put extra string or anything between two json array :

var json3 = [...json1 ,"test", ...json2];

// output should like this : [ { id: 1, name: 'xxx', ocupation: 'Doctor' },
  'test',
  { id: 2, name: 'xyz', ocupation: 'SE' } ]

@Grantland This "pretty clean solution" looks similar to my own improvement over iPhoneDeveloperTips solution.

You can see my step here: https://gist.github.com/1409855/

/* Original source code courtesy John from iOSDeveloperTips.com */

#include <sys/socket.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_dl.h>

+ (NSString *)getMacAddress
{
    int                 mgmtInfoBase[6];
    char                *msgBuffer = NULL;
    NSString            *errorFlag = NULL;
    size_t              length;

    // Setup the management Information Base (mib)
    mgmtInfoBase[0] = CTL_NET;        // Request network subsystem
    mgmtInfoBase[1] = AF_ROUTE;       // Routing table info
    mgmtInfoBase[2] = 0;              
    mgmtInfoBase[3] = AF_LINK;        // Request link layer information
    mgmtInfoBase[4] = NET_RT_IFLIST;  // Request all configured interfaces

    // With all configured interfaces requested, get handle index
    if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0) 
        errorFlag = @"if_nametoindex failure";
    // Get the size of the data available (store in len)
    else if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0) 
        errorFlag = @"sysctl mgmtInfoBase failure";
    // Alloc memory based on above call
    else if ((msgBuffer = malloc(length)) == NULL)
        errorFlag = @"buffer allocation failure";
    // Get system information, store in buffer
    else if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0)
    {
        free(msgBuffer);
        errorFlag = @"sysctl msgBuffer failure";
    }
    else
    {
        // Map msgbuffer to interface message structure
        struct if_msghdr *interfaceMsgStruct = (struct if_msghdr *) msgBuffer;

        // Map to link-level socket structure
        struct sockaddr_dl *socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1);

        // Copy link layer address data in socket structure to an array
        unsigned char macAddress[6];
        memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6);

        // Read from char array into a string object, into traditional Mac address format
        NSString *macAddressString = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X",
                                      macAddress[0], macAddress[1], macAddress[2], macAddress[3], macAddress[4], macAddress[5]];
        NSLog(@"Mac Address: %@", macAddressString);

        // Release the buffer memory
        free(msgBuffer);

        return macAddressString;
    }

    // Error...
    NSLog(@"Error: %@", errorFlag);

    return nil;
}

The first one is invalid syntax. You cannot have object properties inside a plain array. The second one is right although it is not strict JSON. It's a relaxed form of JSON wherein quotes in string keys are omitted.

This tutorial by Patrick Hunlock, may help to learn about JSON and this site may help to validate JSON.

Quick review,

• DB - Define Byte. 8 bits
• DW - Define Word. Generally 2 bytes on a typical x86 32-bit system
• DD - Define double word. Generally 4 bytes on a typical x86 32-bit system

From x86 assembly tutorial,

The pop instruction removes the 4-byte data element from the top of the hardware-supported stack into the specified operand (i.e. register or memory location). It first moves the 4 bytes located at memory location [SP] into the specified register or memory location, and then increments SP by 4.

Your num is 1 byte. Try declaring it with DD so that it becomes 4 bytes and matches with pop semantics.

The command

xcode-select --install

proposes 3 options: Get Xcode; Not Now; Install.

When I choose to get full Xcode the command finished successfully. It took a while, but this way I was able to complete all macports migration instructions.

Plenty of workable solutions here, but as I like saying, "if it's worth doing once, it's worth doing again." I did upvote the sugestion to use (tab)(tab), but as some have noted, you may not have completion support, or, if you have many include files, you may want an easier way to know where a target is defined.

I have not tested the below with sub-makes...I think it wouldn't work. As we know, recursive makes considered harmful.

.PHONY: list ls
ls list :
    @# search all include files for targets.
    @# ... excluding special targets, and output dynamic rule definitions unresolved.
    @for inc in $(MAKEFILE_LIST); do \
    echo ' =' $$inc '= '; \
    grep -Eo '^[^\.#[:blank:]]+.*:.*' $$inc | grep -v ':=' | \
    cut -f 1 | sort | sed 's/.*/  &/' | sed -n 's/:.*$$//p' | \
    tr $$ \\\ | tr $(open_paren) % | tr $(close_paren) % \
; done

# to get around escaping limitations:
open_paren := \(
close_paren := \)

Which I like because:

• list targets by include file.
• output raw dynamic target definitions (replaces variable delimiters with modulo)
• output each target on a new line
• seems clearer (subjective opinion)

Explanation:

• foreach file in the MAKEFILE_LIST
• output the name of the file
• grep lines containing a colon, that are not indented, not comments, and don't start with a period
• exclude immediate assignment expressions (:=)
• cut, sort, indent, and chop rule-dependencies (after colon)
• munge variable delimiters to prevent expansion

Sample Output:

 = Makefile = 
  includes
  ls list
 = util/kiss/snapshots.mk = 
  rotate-db-snapshots
  rotate-file-snapshots
  snap-db
  snap-files
  snapshot
 = util/kiss/main.mk = 
  dirs
  install
   %MK_DIR_PREFIX%env-config.php
   %MK_DIR_PREFIX%../srdb

You could simply do :

double d = (double)15552451L;

Or you could get double from Long object as :

Long l = new Long(15552451L);
double d = l.doubleValue();

the install directory can't have space. reinstall the software will correct it

If you are using Reactive Forms you can use this:

<button [disabled]="!contactForm.valid" type="submit" class="btn btn-lg btn primary" (click)="printSomething()">Submit</button>

Took me a while to read through the above. This was the answer for me:

import seaborn as sns
import matplotlib.pyplot as plt
tips = sns.load_dataset("tips")

g = sns.lmplot(
    x="total_bill", 
    y="tip", 
    hue="smoker", 
    data=tips,  
    legend=False
)

plt.legend(title='Smoker', loc='upper left', labels=['Hell Yeh', 'Nah Bruh'])
plt.show(g)

Reference this for more arguments: matplotlib.pyplot.legend

1. Static means..You can use it without instantiate of the class or using any object.

2. final..It is a keyword which is used for make the string constant. You can not change the value of that string. Look at the example below:

     public class StringTest { 
              static final String str = "Hello"; 
     public static void main(String args[]) { 
              // str = "world"; // gives error 
              System.out.println(str); // called without the help of an object                       
              System.out.println(StringTest.str);// called with class name  
                } 
            } 
   

Thanks

I'm writing this answer w.r.t. to python 3, as I've initially got the same problem.

I was supposed to get data from arduino using PySerial, and write them in a .csv file. Each reading in my case ended with '\r\n', so newline was always separating each line.

In my case, newline='' option didn't work. Because it showed some error like :

with open('op.csv', 'a',newline=' ') as csv_file:

ValueError: illegal newline value: ''

So it seemed that they don't accept omission of newline here.

Seeing one of the answers here only, I mentioned line terminator in the writer object, like,

writer = csv.writer(csv_file, delimiter=' ',lineterminator='\r')

and that worked for me for skipping the extra newlines.

The exec built-in command mirrors functions in the kernel, there are a family of them based on execve, which is usually called from C.

exec replaces the current program in the current process, without forking a new process. It is not something you would use in every script you write, but it comes in handy on occasion. Here are some scenarios I have used it;

1. We want the user to run a specific application program without access to the shell. We could change the sign-in program in /etc/passwd, but maybe we want environment setting to be used from start-up files. So, in (say) .profile, the last statement says something like:

    exec appln-program
   

   so now there is no shell to go back to. Even if appln-program crashes, the end-user cannot get to a shell, because it is not there - the exec replaced it.

2. We want to use a different shell to the one in /etc/passwd. Stupid as it may seem, some sites do not allow users to alter their sign-in shell. One site I know had everyone start with csh, and everyone just put into their .login (csh start-up file) a call to ksh. While that worked, it left a stray csh process running, and the logout was two stage which could get confusing. So we changed it to exec ksh which just replaced the c-shell program with the korn shell, and made everything simpler (there are other issues with this, such as the fact that the ksh is not a login-shell).

3. Just to save processes. If we call prog1 -> prog2 -> prog3 -> prog4 etc. and never go back, then make each call an exec. It saves resources (not much, admittedly, unless repeated) and makes shutdown simplier.

You have obviously seen exec used somewhere, perhaps if you showed the code that's bugging you we could justify its use.

Edit: I realised that my answer above is incomplete. There are two uses of exec in shells like ksh and bash - used for opening file descriptors. Here are some examples:

exec 3< thisfile          # open "thisfile" for reading on file descriptor 3
exec 4> thatfile          # open "thatfile" for writing on file descriptor 4
exec 8<> tother           # open "tother" for reading and writing on fd 8
exec 6>> other            # open "other" for appending on file descriptor 6
exec 5<&0                 # copy read file descriptor 0 onto file descriptor 5
exec 7>&4                 # copy write file descriptor 4 onto 7
exec 3<&-                 # close the read file descriptor 3
exec 6>&-                 # close the write file descriptor 6

Note that spacing is very important here. If you place a space between the fd number and the redirection symbol then exec reverts to the original meaning:

  exec 3 < thisfile       # oops, overwrite the current program with command "3"

There are several ways you can use these, on ksh use read -u or print -u, on bash, for example:

read <&3
echo stuff >&4

You can wrap them in a div and give the div a set width (the width of the widest image + margin maybe?) and then float the divs. Then, set the images to the center of their containing divs. Your margins between images won't be consistent for the differently sized images but it'll lay out much more nicely on the page.

In your case, breaking the hash algorithm is equivalent to finding a collision in the hash algorithm. That means you don't need to find the password itself (which would be a preimage attack), you just need to find an output of the hash function that is equal to the hash of a valid password (thus "collision"). Finding a collision using a birthday attack takes O(2^(n/2)) time, where n is the output length of the hash function in bits.

SHA-2 has an output size of 512 bits, so finding a collision would take O(2^256) time. Given there are no clever attacks on the algorithm itself (currently none are known for the SHA-2 hash family) this is what it takes to break the algorithm.

To get a feeling for what 2^256 actually means: currently it is believed that the number of atoms in the (entire!!!) universe is roughly 10^80 which is roughly 2^266. Assuming 32 byte input (which is reasonable for your case - 20 bytes salt + 12 bytes password) my machine takes ~0,22s (~2^-2s) for 65536 (=2^16) computations. So 2^256 computations would be done in 2^240 * 2^16 computations which would take

2^240 * 2^-2 = 2^238 ~ 10^72s ~ 3,17 * 10^64 years

Even calling this millions of years is ridiculous. And it doesn't get much better with the fastest hardware on the planet computing thousands of hashes in parallel. No human technology will be able to crunch this number into something acceptable.

So forget brute-forcing SHA-256 here. Your next question was about dictionary words. To retrieve such weak passwords rainbow tables were used traditionally. A rainbow table is generally just a table of precomputed hash values, the idea is if you were able to precompute and store every possible hash along with its input, then it would take you O(1) to look up a given hash and retrieve a valid preimage for it. Of course this is not possible in practice since there's no storage device that could store such enormous amounts of data. This dilemma is known as memory-time tradeoff. As you are only able to store so many values typical rainbow tables include some form of hash chaining with intermediary reduction functions (this is explained in detail in the Wikipedia article) to save on space by giving up a bit of savings in time.

Salts were a countermeasure to make such rainbow tables infeasible. To discourage attackers from precomputing a table for a specific salt it is recommended to apply per-user salt values. However, since users do not use secure, completely random passwords, it is still surprising how successful you can get if the salt is known and you just iterate over a large dictionary of common passwords in a simple trial and error scheme. The relationship between natural language and randomness is expressed as entropy. Typical password choices are generally of low entropy, whereas completely random values would contain a maximum of entropy.

The low entropy of typical passwords makes it possible that there is a relatively high chance of one of your users using a password from a relatively small database of common passwords. If you google for them, you will end up finding torrent links for such password databases, often in the gigabyte size category. Being successful with such a tool is usually in the range of minutes to days if the attacker is not restricted in any way.

That's why generally hashing and salting alone is not enough, you need to install other safety mechanisms as well. You should use an artificially slowed down entropy-enducing method such as PBKDF2 described in PKCS#5 and you should enforce a waiting period for a given user before they may retry entering their password. A good scheme is to start with 0.5s and then doubling that time for each failed attempt. In most cases users don't notice this and don't fail much more often than three times on average. But it will significantly slow down any malicious outsider trying to attack your application.

If you want to check if the string contains several specifics words, you can do:

$badWords = array("dette", "capitale", "rembourser", "ivoire", "mandat");

$string = "a string with the word ivoire";

$matchFound = preg_match_all("/\b(" . implode($badWords,"|") . ")\b/i", $string, $matches);

if ($matchFound) {
    echo "a bad word has been found";
}
else {
    echo "your string is okay";
}

This is useful to avoid spam when sending emails for example.

Here is the perfect example of downloading a file using javaScript.

Usage: download_file(fileURL, fileName);

I found the reason. If you remove update panels it woks fine!

Your concatenation syntax is correct.

Most likely the callback function isn't even being called. You can test that by putting an alert(), console.log() or debugger line in that function.

If it isn't being called, most likely there's an AJAX error. Look at chaining a .fail() handler after $.post() to find out what the error is, e.g.:

$.post('ajaxskeleton.php', {
    red: text       
}, function(){
    $('#part' + number).html(text);
}).fail(function(jqXHR, textStatus, errorThrown) {
    console.log(arguments);
});

I like Chad's answer, especially when the query results will be passed on to javascript in a browser. Javascript deals cleanly with numeric like entities as numbers but requires extra work to deal with numeric like entities as strings. i.e. must use parseInt or parseFloat on them.

Building on Chad's solution I use this and it is often exactly what I need and creates structures that can be JSON encoded for easy dealing with in javascript.

while ($row = $result->fetch_assoc()) {
    // convert numeric looking things to numbers for javascript
    foreach ($row as &$val) {
        if (is_numeric($val))
            $val = $val + 0;
    }
}

Adding a numeric string to 0 produces a numeric type in PHP and correctly identifies the type so floating point numbers will not be truncated into integers.

kramdown—the Ruby-based markdown engine that is the default for Jekyll and thus GitHub Pages—has built-in comment support through its extension syntax:

{::comment}
This text is completely ignored by kramdown - a comment in the text.
{:/comment}

Do you see {::comment}this text{:/comment}?
{::comment}some other comment{:/}

This has the benefit of allowing in-line comments, but the downside of not being portable to other Markdown engines.

Use the command

npm config set strict-ssl false

Just in case anybody finds this, there's a nicer alternative that's not documented (I tripped over it after searching for hours, and finally found it in the bug list for the Android SDK itself). You CAN include raw HTML in strings.xml, as long as you wrap it in

<![CDATA[ ...raw html... ]]>

Example:

<string name="nice_html">
<![CDATA[
<p>This is a html-formatted string with <b>bold</b> and <i>italic</i> text</p>
<p>This is another paragraph of the same string.</p>
]]>
</string>

Then, in your code:

TextView foo = (TextView)findViewById(R.id.foo);
foo.setText(Html.fromHtml(getString(R.string.nice_html)));

IMHO, this is several orders of magnitude nicer to work with :-)

Easiest solution

$('.offer').click(function(){
    var cc = $(this).attr('checked') == undefined  ? false : true;
    $(this).find(':checkbox').attr('checked',cc);
});

In Laravel:

Add set_time_limit(0) line on top of query.

set_time_limit(0);

$users = App\User::all();

It helps you in different large queries but you should need to improve query optimise.

This is really old issue, but I just had similar problem. I was doing something like this :

// entity
$entityOne = $this->em->find(Parent::class, 1);

// do something on other entites (SomeEntityClass)
$this->em->persist($entity);
$this->em->flush();
$this->em->clear();

// and at end I was trying to save changes to first one by
$this->em->persist($entityOne);
$this->em->flush();
$this->em->clear();

Problem was that clear detach all entities including the first one and throw error The EntityManager is closed.

In my case solution was to just do clear on distinct type of Entity and leave $entityOne still under EM:

$this->em->clear(SomeEntityClass::class);

Try this:

<?php 
/*
Template Name: [contact us]

*/
get_header();
echo do_shortcode('[CONTACT-US-FORM]'); 
?>

As far as I can see in the manual, it is not possible to call functions inside HEREDOC strings. A cumbersome way would be to prepare the words beforehand:

<?php

    $world = _("World");

    $str = <<<EOF
    <p>Hello</p>
    <p>$world</p>
EOF;
    echo $str;
?>

a workaround idea that comes to mind is building a class with a magic getter method.

You would declare a class like this:

class Translator
{
 public function __get($name) {
  return _($name); // Does the gettext lookup
  }
 }

Initialize an object of the class at some point:

  $translate = new Translator();

You can then use the following syntax to do a gettext lookup inside a HEREDOC block:

    $str = <<<EOF
    <p>Hello</p>
    <p>{$translate->World}</p>
EOF;
    echo $str;
?>

$translate->World will automatically be translated to the gettext lookup thanks to the magic getter method.

To use this method for words with spaces or special characters (e.g. a gettext entry named Hello World!!!!!!, you will have to use the following notation:

 $translate->{"Hello World!!!!!!"}

This is all untested but should work.

Update: As @mario found out, it is possible to call functions from HEREDOC strings after all. I think using getters like this is a sleek solution, but using a direct function call may be easier. See the comments on how to do this.

var mousewheelevt = (/Firefox/i.test(navigator.userAgent)) ? "DOMMouseScroll" : "mousewheel" //FF doesn't recognize mousewheel as of FF3.x
$(document).bind(mousewheelevt, 
function(e)
    {
        var evt = window.event || e //equalize event object     
        evt = evt.originalEvent ? evt.originalEvent : evt; //convert to originalEvent if possible               
        var delta = evt.detail ? evt.detail*(-40) : evt.wheelDelta //check for detail first, because it is used by Opera and FF
        if(delta > 0) 
            {
            scrollup();
            }
        else
            {
            scrolldown();
            }   
    }
);

Following are the ways

1. From the code (the way you have mentioned) ->

   displayBox.Text += sent + "\r\n";
   

   or

   displayBox.Text += sent + Environment.NewLine;
   

2. From the UI
   a) WPF

   Set TextWrapping="Wrap" and AcceptsReturn="True"   
   

   Press Enter key to the textbox and new line will be created

   b) Winform text box

   Set TextBox.MultiLine and TextBox.AcceptsReturn to true
   

To add to the above answers, there's a good article: Useful JVM Flags – Part 8 (GC Logging) by Patrick Peschlow.

A brief excerpt:

The flag -XX:+PrintGC (or the alias -verbose:gc) activates the “simple” GC logging mode

By default the GC log is written to stdout. With -Xloggc:<file> we may instead specify an output file. Note that this flag implicitly sets -XX:+PrintGC and -XX:+PrintGCTimeStamps as well.

If we use -XX:+PrintGCDetails instead of -XX:+PrintGC, we activate the “detailed” GC logging mode which differs depending on the GC algorithm used.

With -XX:+PrintGCTimeStamps a timestamp reflecting the real time passed in seconds since JVM start is added to every line.

If we specify -XX:+PrintGCDateStamps each line starts with the absolute date and time.

To answer the original question,
For installing packages, PIP and Conda are different ways to accomplish the same thing. Both are standard applications to install packages. The main difference is the source of the package files.

• PIP/PyPI will have more "experimental" packages, or newer, less common, versions of packages
• Conda will typically have more well established packages or versions

An important cautionary side note: If you use both sources (pip and conda) to install packages in the same environment, this may cause issues later.

• Recreate the environment will be more difficult
• Fix package incompatibilities becomes more complicated

Best practice is to select one application, PIP or Conda, to install packages, and use that application to install any packages you need. However, there are many exceptions or reasons to still use pip from within a conda environment, and vice versa. For example:

• When there are packages you need that only exist on one, and the other doesn't have them.
• You need a certain version that is only available in one environment

Pass using JSON

  <a routerLink = "/link"
   [queryParams] = "{parameterName: objectToPass| json }">
         sample Link                   
  </a>

in undergrad, we used NERO (a combination of neural network and genetic algorithm) to teach in-game robots to make intelligent decisions. It was pretty cool.

On the server, try:

netstat -an 

and look to see if tcp port 22 is opened (use findstr in Windows or grep in Unix).

I figured it out. The below works in converting it to a 24 hr date format.

select date_parse('7/22/2016 6:05:04 PM','%m/%d/%Y %h:%i:%s %p')

See date_parse documentation in Presto.

You can execute shell script in two ways,either by using cron job or by writing a shell script

Lets assume your script name is "yourscript.sh"

First check the user permission of the script. use below command to check user permission of the script

ll script.sh

If the script is in root,then use below command

sudo crontab -e

Second if the script holds the user "ubuntu", then use below command

crontab -e

Add the following line in your crontab:-

55 23 * * * /path/to/yourscript.sh

Another way of doing this is to write a script and run it in the backgroud

Here is the script where you have to put your script name(eg:- youscript.sh) which is going to run at 23:55pm everyday

#!/bin/bash while true do /home/modassir/yourscript.sh sleep 1d done

save it in a file (lets name it "every-day.sh")

sleep 1d - means it waits for one day and then it runs again.

now give the permission to your script.use below command:-

chmod +x every-day.sh

now, execute this shell script in the background by using "nohup". This will keep executing the script even after you logout from your session.

use below command to execute the script.

nohup ./every-day.sh &

Note:- to run "yourscript.sh" at 23:55pm everyday,you have to execute "every-day.sh" script at exactly 23:55pm.

1. Connect Android device to PC via USB cable and turn on USB storage.
2. Copy .apk file to attached device's storage.
3. Turn off USB storage and disconnect it from PC.
4. Check the option Settings ? Applications ? Unknown sources OR Settings > Security > Unknown Sources.
5. Open FileManager app and click on the copied .apk file. If you can't fine the apk file try searching or allowing hidden files. It will ask you whether to install this app or not. Click Yes or OK.

This procedure works even if ADB is not available.

dog.ts

import b = require('./baseTypes');

export module Living.Things {
    // Error, can't find name 'Animal', ??
    // Solved: can find, if properly referenced; exporting modules is useless, anyhow
    export class Dog extends b.Living.Things.Animal {
        public woof(): void {
            return;
        }
    }
}

tree.ts

// Error, can't use the same name twice, ??
// Solved: cannot declare let or const variable twice in same scope either: just use a different name
import b = require('./baseTypes');
import d = require('./dog');

module Living.Things {
    // Why do I have to write b.Living.Things.Plant instead of b.Plant??
    class Tree extends b.Living.Things.Plant {
    }
}

You can use Array.prototype.forEach, but async/await is not so compatible. This is because the promise returned from an async callback expects to be resolved, but Array.prototype.forEach does not resolve any promises from the execution of its callback. So then, you can use forEach, but you'll have to handle the promise resolution yourself.

Here is a way to read and print each file in series using Array.prototype.forEach

async function printFilesInSeries () {
  const files = await getFilePaths()

  let promiseChain = Promise.resolve()
  files.forEach((file) => {
    promiseChain = promiseChain.then(() => {
      fs.readFile(file, 'utf8').then((contents) => {
        console.log(contents)
      })
    })
  })
  await promiseChain
}

Here is a way (still using Array.prototype.forEach) to print the contents of files in parallel

async function printFilesInParallel () {
  const files = await getFilePaths()

  const promises = []
  files.forEach((file) => {
    promises.push(
      fs.readFile(file, 'utf8').then((contents) => {
        console.log(contents)
      })
    )
  })
  await Promise.all(promises)
}

In Ayman's example by returning false you prevent the browser window/tab from closing.

window.onunload = function () {
  alert('You are trying to leave.');
  return false;
}

Your second bit of code starts the first bit of code as a subprocess with piped input and output. It then closes its input and tries to read its output.

The first bit of code tries to read from standard input, but the process that started it closed its standard input, so it immediately reaches an end-of-file, which Python turns into an exception.

Java strings are interesting. It looks like the responses have covered some of the interesting points. Here are my two cents.

strings are immutable (you can never change them)

String x = "x";
x = "Y"; 

• The first line will create a variable x which will contain the string value "x". The JVM will look in its pool of string values and see if "x" exists, if it does, it will point the variable x to it, if it does not exist, it will create it and then do the assignment
• The second line will remove the reference to "x" and see if "Y" exists in the pool of string values. If it does exist, it will assign it, if it does not, it will create it first then assignment. As the string values are used or not, the memory space in the pool of string values will be reclaimed.

string comparisons are contingent on what you are comparing

String a1 = new String("A");

String a2 = new String("A");

• a1 does not equal a2
• a1 and a2 are object references
• When string is explicitly declared, new instances are created and their references will not be the same.

I think you're on the wrong path with trying to use the caseinsensitive class. Leave the strings alone. What you really care about is how you display or compare the values. Use another class to format the string or to make comparisons.

i.e.

TextUtility.compare(string 1, string 2) 
TextUtility.compareIgnoreCase(string 1, string 2)
TextUtility.camelHump(string 1)

Since you are making up the class, you can make the compares do what you want - compare the text values.

You need to add a unique ID to each of the notifications so that they do not combine with each other. You can use this link for your reference :

https://github.com/sanathe06/AndroidGuide/tree/master/ExampleCompatNotificationBuilder

<a href="#" class="btnTest">Test</a>


.btnTest{
   background:url('images/icon.png') no-repeat left center;
   padding-left:20px;
}    

Look at ?par for the various graphics parameters.

In general cex controls size, col controls colour. If you want to control the colour of a label, the par is col.lab, the colour of the axis annotations col.axis, the colour of the main text, col.main etc. The names are quite intuitive, once you know where to begin.

For example

x <- 1:10
y <- 1:10

plot(x , y,xlab="x axis", ylab="y axis",  pch=19, col.axis = 'blue', col.lab = 'red', cex.axis = 1.5, cex.lab = 2)

If you need to change the colour / style of the surrounding box and axis lines, then look at ?axis or ?box, and you will find that you will be using the same parameter names within calls to box and axis.

You have a lot of control to make things however you wish.

eg

plot(x , y,xlab="x axis", ylab="y axis",  pch=19,  cex.lab = 2, axes = F,col.lab = 'red')
box(col = 'lightblue')
axis(1, col = 'blue', col.axis = 'purple', col.ticks = 'darkred', cex.axis = 1.5, font = 2, family = 'serif')
axis(2, col = 'maroon', col.axis = 'pink', col.ticks = 'limegreen', cex.axis = 0.9, font =3, family = 'mono')

Which is seriously ugly, but shows part of what you can control

Since I stumbled on this answer, and it greatly helped me, but I found a minor syntactic issue, I felt I should save others possible frustration. The triple quoted string works for this scenario as described, but note that if the " you want in the string occurs at the end of the string itself:

somestr = """This is a string with a special need to have a " in it at the end""""

You will hit an error at execution because the """" (4) quotes in a row confuses the string reader, as it thinks it has hit the end of the string already and then finds a random " out there. You can validate this by inserting a space into the 4 quotes like so: " """ and it will not have the error.

In this special case you will need to either use:

somestr = 'This.....at the end"'

or use the method described above of building multiple strings with mixed " and ' and then concatenating them after the fact.

Supposing you use sql server:

WHERE StartTime BETWEEN DATEADD(HOUR, -1, GetDate())
                    AND DATEADD(HOUR, 1, GetDate())

1. sudo docker images / docker images // list of images with id
2. sudo docker rm image <image_id> / docker rm image <image_id>

Simply execute

CKEDITOR.instances[elementId].getData();

with element id = id of element assigned the editor.

Simplest way could come up with for files and input controls, w/out a billion libraries:

  <%
  if (request.getContentType()==null) return;
  // for input type=text controls
  String v_Text = 
  (new BufferedReader(new InputStreamReader(request.getPart("Text1").getInputStream()))).readLine();    

  // for input type=file controls
  InputStream inStr = request.getPart("File1").getInputStream();
  char charArray[] = new char[inStr.available()];
  new InputStreamReader(inStr).read(charArray);
  String contents = new String(charArray);
  %>

This should return the collection containing single list:

dataFrame.select("YOUR_COLUMN_NAME").rdd.map(r => r(0)).collect()

Without the mapping, you just get a Row object, which contains every column from the database.

Keep in mind that this will probably get you a list of Any type. Ïf you want to specify the result type, you can use .asInstanceOf[YOUR_TYPE] in r => r(0).asInstanceOf[YOUR_TYPE] mapping

P.S. due to automatic conversion you can skip the .rdd part.

Not absolutely what you are asking for, but you may be interested by my plugin vim-notebook which allows the user to keep a background process alive and to make it evaluate part of the current document (and to write the output in the document). It is intended to be used on notebook-style documents containing pieces of code to be evaluated.

At the end of the day it doesn't matter because C++ compilers can deal with the files in either format. If it's a real issue within your team, flip a coin and move on to the actual work.

I know this post is a little dated but I ran in to this same problem. Example of my html.

<div class="row">
    <div class="col-xs-3">
        <div class="form-group">
            <label asp-for="FirstName" class="control-label"></label>
            <input asp-for="FirstName" class="form-control" />
            <span asp-validation-for="FirstName" class="text-danger"></span>
        </div>
    </div>
    <div class="col-xs-3">
        <div class="form-group">
            <label asp-for="LastName" class="control-label"></label>
            <input asp-for="LastName" class="form-control" />
            <span asp-validation-for="LastName" class="text-danger"></span>
        </div>
    </div>            
</div>

In order to create space between the groups I overrode bootstrap's margin of -15px in my site.css file by reducing the negative margin by 5.

Here's what I did...

.form-group {
    margin-right: -10px;
}

I hope this helps somebody else.

You can simply use the zoom property:

#myContainer{
    zoom: 0.5;
    -moz-transform: scale(0.5);
}

Where myContainer contains all the elements you're editing. This is supported in all major browsers.

sudo apt-get install iproute2 then run ip addr show

it works..

Here is a snippet that gets the default newline character for the current platform. Use System.getProperty("os.name") and System.getProperty("os.version"). Example:

public static String getSystemNewline(){
    String eol = null;
    String os = System.getProperty("os.name").toLowerCase();
    if(os.contains("mac"){
        int v = Integer.parseInt(System.getProperty("os.version"));
        eol = (v <= 9 ? "\r" : "\n");
    }
    if(os.contains("nix"))
        eol = "\n";
    if(os.contains("win"))
        eol = "\r\n";

    return eol;
}

Where eol is the newline

Note that you also can use insert in order to put number into the required position within list:

initList = [1,2,3,4,5]
initList.insert(2, 10) # insert(pos, val) => initList = [1,2,10,3,4,5]

And also note that in python you can always get a list length using method len()

I ran into the same error, when I just forgot to declare my custom component in my NgModule - check there, if the others solutions won't work for you.

If you mean getting a powered NFC device to pretend to be a passive one (eg a tag).. not sure how well it works but the android app NFCClassic purports to record tag contents and then allow the tag to be activated and appear to be the copied tag to NFC readers. Creates a library of recorded tags.

You can do this:

<img src="your image" style="transform:rotate(90deg);">

it is much easier.

Starting from Java SE 8u40, for such need you can use an "integer" Spinner allowing to safely select a valid integer by using the keyboard's up arrow/down arrow keys or the up arrow/down arrow provided buttons.

You can also define a min, a max and an initial value to limit the allowed values and an amount to increment or decrement by, per step.

For example

// Creates an integer spinner with 1 as min, 10 as max and 2 as initial value
Spinner<Integer> spinner1 = new Spinner<>(1, 10, 2);
// Creates an integer spinner with 0 as min, 100 as max and 10 as initial 
// value and 10 as amount to increment or decrement by, per step
Spinner<Integer> spinner2 = new Spinner<>(0, 100, 10, 10);

Example of result with an "integer" spinner and a "double" spinner

A spinner is a single-line text field control that lets the user select a number or an object value from an ordered sequence of such values. Spinners typically provide a pair of tiny arrow buttons for stepping through the elements of the sequence. The keyboard's up arrow/down arrow keys also cycle through the elements. The user may also be allowed to type a (legal) value directly into the spinner. Although combo boxes provide similar functionality, spinners are sometimes preferred because they don't require a drop-down list that can obscure important data, and also because they allow for features such as wrapping from the maximum value back to the minimum value (e.g., from the largest positive integer to 0).

More details about the Spinner control

I found 2 quick options to fix this:

1. Just input in search "Preview" and it will show you a single result. Just click on it and preview appears again :)
2. Pull the right-side line and window will appear. It's kinda resize.

Happy coding!

Setting the CSS property after you have used .show() should work. Maybe you are targeting the wrong element on your HTML page.

 $('#foo').css('display', 'inline-block');

But if you are not using any effects of .show(), .hide() why don't you set those CSS properties manually like:

$('#foo').css('display','none'); 
$('#foo').css('display','inline-block');

We need to remember that the {% endif %} comes after the {% else %}.

So this is an example:

{% if someTest %}
     <p> Something is True </p>
{% else %}
     <p> Something is False </p>
{% endif %}

input[type='text'], input[type='password']
{
   // my css
}

That is the correct way to do it. Sadly CSS is not a programming language.

I thought about this simple regex matching pattern for IP address matching \d+[.]\d+[.]\d+[.]\d+

This one did it for me:

var input = $("<input>")
               .attr("type", "hidden")
               .attr("name", "mydata").val("bla");
$('#form1').append(input);

is based on the Daff's answer, but added the NAME attribute to let it show in the form collection and changed VALUE to VAL Also checked the ID of the FORM (form1 in my case)

used the Firefox firebug to check whether the element was inserted.

Hidden elements do get posted back in the form collection, only read-only fields are discarded.

Michel

I initialized a new SPring boot project in IntelliJIdea with Spring Boot dev tools, but in pom.xml I had only dependency

 ...
 <dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter</artifactId>
 </dependency>
 ...

You need to have also artifact spring-boot-starter-web. Just add this dependency to pom.xml

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

1.It can only access the static member(s) of the class.

Reason : Non static member is specific to the object instance. If static constructor are allowed to work on non static members it will reflect the changes in all the object instance, which is impractical.

2.There should be no parameter(s) in static constructor.

Reason: Since, It is going to be called by CLR, nobody can pass the parameter to it. 3.Only one static constructor is allowed.

Reason: Overloading needs the two methods to be different in terms of method/constructor definition which is not possible in static constructor.

4.There should be no access modifier to it.

Reason: Again the reason is same call to static constructor is made by CLR and not by the object, no need to have access modifier to it

Did you try with strip() :

listOfNum = ['231512-n','1209123100000-n00000','alphanumeric0000', 'alphanumeric']
print [item.strip('0') for item in listOfNum]

>>> ['231512-n', '1209123100000-n', 'alphanumeric', 'alphanumeric']

You need to first add using Microsoft.Win32; to your code page.

Then you can begin to use the Registry classes:

try
{
    using (RegistryKey key = Registry.LocalMachine.OpenSubKey("Software\\Wow6432Node\\MySQL AB\\MySQL Connector\\Net"))
    {
        if (key != null)
        {
            Object o = key.GetValue("Version");
            if (o != null)
            {
                Version version = new Version(o as String);  //"as" because it's REG_SZ...otherwise ToString() might be safe(r)
                //do what you like with version
            }
        }
    }
}
catch (Exception ex)  //just for demonstration...it's always best to handle specific exceptions
{
    //react appropriately
}

BEWARE: unless you have administrator access, you are unlikely to be able to do much in LOCAL_MACHINE. Sometimes even reading values can be a suspect operation without admin rights.

deploy:
  resources:
    limits:
      cpus: '0.001'
      memory: 50M
    reservations:
      cpus: '0.0001'
      memory: 20M

More: https://docs.docker.com/compose/compose-file/compose-file-v3/#resources

In you specific case:

version: "3"
services:
  node:
    image: USER/Your-Pre-Built-Image
    environment:
      - VIRTUAL_HOST=localhost
    volumes:
      - logs:/app/out/
    command: ["npm","start"]
    cap_drop:
      - NET_ADMIN
      - SYS_ADMIN
    deploy:
      resources:
        limits:
          cpus: '0.001'
          memory: 50M
        reservations:
          cpus: '0.0001'
          memory: 20M

volumes:
  - logs

networks:
  default:
    driver: overlay

Note:

• Expose is not necessary, it will be exposed per default on your stack network.
• Images have to be pre-built. Build within v3 is not possible
• "Restart" is also deprecated. You can use restart under deploy with on-failure action
• You can use a standalone one node "swarm", v3 most improvements (if not all) are for swarm

Also Note: Networks in Swarm mode do not bridge. If you would like to connect internally only, you have to attach to the network. You can 1) specify an external network within an other compose file, or have to create the network with --attachable parameter (docker network create -d overlay My-Network --attachable) Otherwise you have to publish the port like this:

ports:
  - 80:80

Improving Suman.hassan95's answer by adding a link to subcategory as well. Replace the following code:

$sub_cats = get_categories( $args2 );
    if($sub_cats) {
        foreach($sub_cats as $sub_category) {
            echo  $sub_category->name ;
        }

    }

with:

$sub_cats = get_categories( $args2 );
            if($sub_cats) {
                foreach($sub_cats as $sub_category) {
                    echo  '<br/><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .'</a>';
                }
            }

or if you also wish a counter for each subcategory, replace with this:

$sub_cats = get_categories( $args2 );
            if($sub_cats) {
                foreach($sub_cats as $sub_category) {
                    echo  '<br/><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .'</a>';
                    echo apply_filters( 'woocommerce_subcategory_count_html', ' <span class="cat-count">' . $sub_category->count . '</span>', $category );
                }
            }

Unfortunately what you'd like to do is not possible. GraphQL requires you to be explicit about specifying which fields you would like returned from your query.

The HTML5 fileReader facility does allow you to process local files, but these MUST be selected by the user, you cannot go rooting about the users disk looking for files.

I currently use this with development versions of Chrome (6.x). I don't know what other browsers support it.

if you need a performance trick use below:

$(".yourclass", this);

find() method makes a search everytime in selector.

You can add values to the HttpWebRequest.Headers collection.

According to MSDN, it should be supported in windows phone: http://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.headers%28v=vs.95%29.aspx

You can use the DataFrame.select method:

In [1]: df = pd.DataFrame([[1,2],[3,4]], index=['A','B'])

In [2]: df
Out[2]: 
   0  1
A  1  2
B  3  4

In [3]: L = ['A']

In [4]: df.select(lambda x: x in L)
Out[4]: 
   0  1
A  1  2

Can also do it this way but other ways seem better, this comes in handy if you only need it the once.

onkeyup="this.value = this.value.toUpperCase();"

As far as I can tell this will only work on newer versions of Android, so you will probably have to figure out a different way to do it. This solution works for me on 4.4, but not on 4.0 or 2.3.3, so this will not be a useful way to go about sharing content for an app that's meant to run on any Android device.

In manifest.xml:

<provider
    android:name="android.support.v4.content.FileProvider"
    android:authorities="com.mydomain.myapp.SharingActivity"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/file_paths" />
</provider>

Take careful note of how you specify the authorities. You must specify the activity from which you will create the URI and launch the share intent, in this case the activity is called SharingActivity. This requirement is not obvious from Google's docs!

file_paths.xml:

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <files-path name="just_a_name" path=""/>
</paths>

Be careful how you specify the path. The above defaults to the root of your private internal storage.

In SharingActivity.java:

Uri contentUri = FileProvider.getUriForFile(getActivity(),
"com.mydomain.myapp.SharingActivity", myFile);
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.setType("image/jpeg");
shareIntent.putExtra(Intent.EXTRA_STREAM, contentUri);
shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(Intent.createChooser(shareIntent, "Share with"));

In this example we are sharing a JPEG image.

Finally it is probably a good idea to assure yourself that you have saved the file properly and that you can access it with something like this:

File myFile = getActivity().getFileStreamPath("mySavedImage.jpeg");
if(myFile != null){
    Log.d(TAG, "File found, file description: "+myFile.toString());
}else{
    Log.w(TAG, "File not found!");
}

2009: JavaDecompiler can do a good job with a jar: since 0.2.5, All files, in JAR files, are displayed.

See also the question "How do I “decompile” Java class files?".

The JD-Eclipse doesn't seem to have changed since late 2009 though (see Changes).
So its integration with latest Eclipse (3.8, 4.2+) might be problematic.

JD-Core is actively maintained.

Both are the result of the fantastic work of (SO user) Emmanuel Dupuy.

2018: A more modern option, mentioned in the comments by David Kennedy Araujo:

JetBrains/intellij-community/plugins/java-decompiler/engine

Fernflower is the first actually working analytical decompiler for Java and probably for a high-level programming language in general.

java -jar fernflower.jar [-<option>=<value>]* [<source>]+ <destination>

java -jar fernflower.jar -hes=0 -hdc=0 c:\Temp\binary\ -e=c:\Java\rt.jar c:\Temp\source\

See also How to decompile to java files intellij idea for a command working with recent IntelliJ IDEA.

pyspellchecker is the one of the best solutions for this problem. pyspellchecker library is based on Peter Norvig’s blog post. It uses a Levenshtein Distance algorithm to find permutations within an edit distance of 2 from the original word. There are two ways to install this library. The official document highly recommends using the pipev package.

• install using pip

pip install pyspellchecker

• install from source

git clone https://github.com/barrust/pyspellchecker.git
cd pyspellchecker
python setup.py install

the following code is the example provided from the documentation

from spellchecker import SpellChecker

spell = SpellChecker()

# find those words that may be misspelled
misspelled = spell.unknown(['something', 'is', 'hapenning', 'here'])

for word in misspelled:
    # Get the one `most likely` answer
    print(spell.correction(word))

    # Get a list of `likely` options
    print(spell.candidates(word))

Give it a chance:

Try getting string via function gets(string) then check condition as if(string[0] == '\0')

Thanks for the answers above. Here's how I did it, I hope it helps those who follow. I'm looking to pass a registration number from one page to another, hence regName and regValue:

Create your first page, call it set_reg.php:

<?php

session_start();

$_SESSION['regName'] = $regValue;

?>

<form method="get" action="get_reg.php">
    <input type="text" name="regName" value="">
    <input type="submit">
</form>

Create your second page, call it get_reg.php:

<?php

session_start();

$regValue = $_GET['regName'];

echo "Your registration is: ".$regValue.".";

?>

<p><a href="set_reg.php">Back to set_reg.php</a>

Although not as comprehensive as the answer above, for my purposes this illustrates in simple fashion the relationship between the various elements.

It's about classes dependency rate to another ones which is so low in loosely coupled and so high in tightly coupled. To be clear in the service orientation architecture, services are loosely coupled to each other against monolithic which classes dependency to each other is on purpose

You are trying to create a FileStream object for a directory (folder). Specify a file name (e.g. @"D:\test.txt") and the error will go away.

By the way, I would suggest that you use the StreamWriter constructor that takes an Encoding as its second parameter, because otherwise you might be in for an unpleasant surprise when trying to read the saved file later (using StreamReader).

Did you set the CSS:

html, body
{
    height: 100%;
}

You need this to be able to make the div take up all the space. :)

If you want to disable particular date(s) in jquery datepicker then here is the simple demo for you.

<script type="text/javascript">
    var arrDisabledDates = {};
    arrDisabledDates[new Date("08/28/2017")] = new Date("08/28/2017");
    arrDisabledDates[new Date("12/23/2017")] = new Date("12/23/2017");
    $(".datepicker").datepicker({
        dateFormat: "dd/mm/yy",
        beforeShowDay: function (date) {
            var day = date.getDay(),
                    bDisable = arrDisabledDates[date];
            if (bDisable)
                return [false, "", ""]
        }
    });
</script>

You can use the container, It will help you to set the alignment.

Widget _buildListWidget({Map reminder}) {
return Container(
  color: Colors.amber,
  alignment: Alignment.centerLeft,
  padding: EdgeInsets.all(20),
  height: 80,
  child: Column(
    mainAxisAlignment: MainAxisAlignment.center,
    crossAxisAlignment: CrossAxisAlignment.center,
    children: <Widget>[
      Container(
        alignment: Alignment.centerLeft,
        child: Text(
          reminder['title'],
          textAlign: TextAlign.left,
          style: TextStyle(
            fontSize: 16,
            color: Colors.black,
            backgroundColor: Colors.blue,
            fontWeight: FontWeight.normal,
          ),
        ),
      ),
      Container(
        alignment: Alignment.centerRight,
        child: Text(
          reminder['Date'],
          textAlign: TextAlign.right,
          style: TextStyle(
            fontSize: 12,
            color: Colors.grey,
            backgroundColor: Colors.blue,
            fontWeight: FontWeight.normal,
          ),
        ),
      ),
    ],
  ),
);
}

Yes, it's possible with a bit of tweak. Unfortunately, you still have to have VS 2010 installed.

1. First, install XNA Game Studio 4.0. The easiest way is to install the Windows Phone SDK 7.1 which contains everything required.

2. Copy the XNA Game Extension from VS 10 to VS 11 by opening a command prompt 'as administrator' and executing the following (may vary if not x64 computer with defaults paths) :

   xcopy /e "C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Microsoft\XNA Game Studio 4.0" "C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\Extensions\Microsoft\XNA Game Studio 4.0"

3. Run notepad as administrator then open extension.vsixmanifest in the destination directory just created.

4. Upgrade the Supported product version to match the new version (or duplicate the whole VisualStudio element and change the Version attribute, as @brainslugs83 said in comments):

   <SupportedProducts>
     <VisualStudio Version="11.0">
       <Edition>VSTS</Edition>
       <Edition>VSTD</Edition>
       <Edition>Pro</Edition>
       <Edition>VCSExpress</Edition>
       <Edition>VPDExpress</Edition>
     </VisualStudio>
   </SupportedProducts>
   

5. Don't forget to clear/delete your cache in %localappdata%\Microsoft\VisualStudio\12.0\Extensions.

6. You may have to run the command to tells Visual Studio that new extensions are available. If you see an 'access denied' message, try launching the console as an administrator.

   "C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\devenv.exe" /setup
   

This has been tested for Windows Games, but not WP7 or Xbox games.

[Edit] According Jowsty, this works also for XBox 360 Games.

[Edit for Visual Studio 2013 & Windows 8.1] See here for documentation on installing Windows Phone SDK 7.1 on Windows 8.1. Use VS version number 12.0 in place of 11.0 for all of these steps, and they will still work correctly.

I just had the same problem. It is not a network permission but rather thread issue. Below code helped me to solve it. Put is in main activity

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (android.os.Build.VERSION.SDK_INT > 9)
    {
        StrictMode.ThreadPolicy policy = new 
        StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);
    }

Read more about Array and ArrayList

List<String> aList = new ArrayList<String>();
aList.add("apple");   
aList.add("banana");   
aList.add("orange");   
String result = alist.get(1);  //this will retrieve banana

Note: Index starts from 0 i.e. Zero

• Resource

You could try updating the table to get rid of these characters:

UPDATE dbo.[audit]
  SET UserID = REPLACE(UserID, CHAR(0), '')
  WHERE CHARINDEX(CHAR(0), UserID) > 0;

But then you'll also need to fix whatever is putting this bad data into the table in the first place. In the meantime perhaps try:

SELECT CONVERT(INT, REPLACE(UserID, CHAR(0), ''))
  FROM dbo.[audit];

But that is not a long term solution. Fix the data (and the data type while you're at it). If you can't fix the data type immediately, then you can quickly find the culprit by adding a check constraint:

ALTER TABLE dbo.[audit]
  ADD CONSTRAINT do_not_allow_stupid_data
  CHECK (CHARINDEX(CHAR(0), UserID) = 0);

EDIT

Ok, so that is definitely a 4-digit integer followed by six instances of CHAR(0). And the workaround I posted definitely works for me:

DECLARE @foo TABLE(UserID VARCHAR(32));
INSERT @foo SELECT 0x31353831000000000000;

-- this succeeds:
SELECT CONVERT(INT, REPLACE(UserID, CHAR(0), '')) FROM @foo;

-- this fails:
SELECT CONVERT(INT, UserID) FROM @foo;

Please confirm that this code on its own (well, the first SELECT, anyway) works for you. If it does then the error you are getting is from a different non-numeric character in a different row (and if it doesn't then perhaps you have a build where a particular bug hasn't been fixed). To try and narrow it down you can take random values from the following query and then loop through the characters:

SELECT UserID, CONVERT(VARBINARY(32), UserID)
  FROM dbo.[audit]
  WHERE UserID LIKE '%[^0-9]%';

So take a random row, and then paste the output into a query like this:

DECLARE @x VARCHAR(32), @i INT;
SET @x = CONVERT(VARCHAR(32), 0x...); -- paste the value here
SET @i = 1;
WHILE @i <= LEN(@x)
BEGIN
  PRINT RTRIM(@i) + ' = ' + RTRIM(ASCII(SUBSTRING(@x, @i, 1)))
  SET @i = @i + 1;
END

This may take some trial and error before you encounter a row that fails for some other reason than CHAR(0) - since you can't really filter out the rows that contain CHAR(0) because they could contain CHAR(0) and CHAR(something else). For all we know you have values in the table like:

SELECT '15' + CHAR(9) + '23' + CHAR(0);

...which also can't be converted to an integer, whether you've replaced CHAR(0) or not.

I know you don't want to hear it, but I am really glad this is painful for people, because now they have more war stories to push back when people make very poor decisions about data types.

On server-side it will be not as accurate as with JavaScript. Meanwhile, sometimes it is required to solve such task. Just to share the possible solution in this case I write this answer.

If you need to determine user's time zone it could be done via Geo-IP services. Some of them providing timezone. For example, this one (http://smart-ip.net/geoip-api) could help:

<?php
$ip     = $_SERVER['REMOTE_ADDR']; // means we got user's IP address 
$json   = file_get_contents( 'http://smart-ip.net/geoip-json/' . $ip); // this one service we gonna use to obtain timezone by IP
// maybe it's good to add some checks (if/else you've got an answer and if json could be decoded, etc.)
$ipData = json_decode( $json, true);

if ($ipData['timezone']) {
    $tz = new DateTimeZone( $ipData['timezone']);
    $now = new DateTime( 'now', $tz); // DateTime object corellated to user's timezone
} else {
   // we can't determine a timezone - do something else...
}

curl -u username:password http://
curl -u username http://

From the documentation page:

-u, --user <user:password>

Specify the user name and password to use for server authentication. Overrides -n, --netrc and --netrc-optional.

If you simply specify the user name, curl will prompt for a password.

The user name and passwords are split up on the first colon, which makes it impossible to use a colon in the user name with this option. The password can, still.

When using Kerberos V5 with a Windows based server you should include the Windows domain name in the user name, in order for the server to succesfully obtain a Kerberos Ticket. If you don't then the initial authentication handshake may fail.

When using NTLM, the user name can be specified simply as the user name, without the domain, if there is a single domain and forest in your setup for example.

To specify the domain name use either Down-Level Logon Name or UPN (User Principal Name) formats. For example, EXAMPLE\user and [email protected] respectively.

If you use a Windows SSPI-enabled curl binary and perform Kerberos V5, Negotiate, NTLM or Digest authentication then you can tell curl to select the user name and password from your environment by specifying a single colon with this option: "-u :".

If this option is used several times, the last one will be used.

http://curl.haxx.se/docs/manpage.html#-u

Note that you do not need --basic flag as it is the default.

This is acceptable as assigning to an array. But if you are asking for pushing, I am pretty sure its not possible in array. Rather it can be achieved by using Stack, Queue or any other data structure. Real arrays doesn't have such functions. But derived classes such as ArrayList have it.

I was facing similar kind of problem.There is image of error attached.Error is highlighted in red. Turning off the Instant run removed error for Android Studio 2.3 and 3.1.4.

TextMarks gives you access to its shared shortcode to send and receive text messages from your app via their API. Messages come from/to 41411 (instead of e.g. a random phone# and unlike e-mail gateways you have the full 160 chars to work with).

You can also tell people to text in your keyword(s) to 41411 to invoke various functionality in your app. There is a JAVA API client along with several other popular languages and very comprehensive documentation and technical support.

The 14 day free trial can be easily extended for developers who are still testing it out and building their apps.

Check it out here: TextMarks API Info

UPDATE yourtable
SET url = REPLACE(url, 'http://domain1.com/images/', 'http://domain2.com/otherfolder/')
WHERE url LIKE ('http://domain1.com/images/%');

relevant docs: http://dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_replace

You can use a fieldset tag.

<!DOCTYPE html>_x000D_
<html>_x000D_
<body>_x000D_
_x000D_
<form>_x000D_
 <fieldset>_x000D_
  <legend>Personalia:</legend>_x000D_
  Name: <input type="text"><br>_x000D_
  Email: <input type="text"><br>_x000D_
  Date of birth: <input type="text">_x000D_
 </fieldset>_x000D_
</form>_x000D_
_x000D_
</body>_x000D_
</html>

Check this link: HTML Tag

Upload your favicon.ico to the root directory of your website and that should work with Chrome. Some browsers disregard the meta tag and just use /favicon.ico

Go figure?.....

I don’t know how helpful will that be but in my case I just created another circle with border only and placed it “inside” the other shape.

Another possibility is to denote where you can find OpenCV_DIR in the CMakeLists.txt file. For example, the following cmake scripts work for me:

cmake_minimum_required(VERSION 2.8)

project(performance_test)

set(OpenCV_STATIC ON)
set(OpenCV_CUDA OFF)
set(OpenCV_DIR "${CMAKE_SOURCE_DIR}/../install")

find_package(OpenCV REQUIRED)

include_directories(${OpenCV_INCLUDE_DIRS})

link_directories(${OpenCV_LIB_DIR})

file(GLOB my_source_files ./src/*)

add_executable( performance_test ${my_source_files})

target_link_libraries(performance_test ${OpenCV_LIBS})

Just to remind that you should set OpenCV_STATIC and OpenCV_CUDA as well before you invoke OpenCVConfig.cmake. In my case the built library is static library that does not use CUDA.

It's been mentioned that the difference is largely semantic: people expect a tuple and list to represent different information. But this goes further than a guideline; some libraries actually behave differently based on what they are passed. Take NumPy for example (copied from another post where I ask for more examples):

>>> import numpy as np
>>> a = np.arange(9).reshape(3,3)
>>> a
array([[0, 1, 2],
       [3, 4, 5],
       [6, 7, 8]])
>>> idx = (1,1)
>>> a[idx]
4
>>> idx = [1,1]
>>> a[idx]
array([[3, 4, 5],
       [3, 4, 5]])

The point is, while NumPy may not be part of the standard library, it's a major Python library, and within NumPy lists and tuples are completely different things.

There is a workaround by using the history API on modern browsers with fallback on old ones:

if(history.pushState) {
    history.pushState(null, null, '#myhash');
}
else {
    location.hash = '#myhash';
}

Credit goes to Lea Verou

The fcntl module is just used for locking the pinning file, so assuming you don't try multiple access, this can be an acceptable workaround. Place this module in your sys.path, and it should just work as the official fcntl module.

Try using this module for development/testing purposes only in windows.

def fcntl(fd, op, arg=0):
    return 0

def ioctl(fd, op, arg=0, mutable_flag=True):
    if mutable_flag:
        return 0
    else:
        return ""

def flock(fd, op):
    return

def lockf(fd, operation, length=0, start=0, whence=0):
    return

I was encountering the same problem. I had a Tooltip component that was receiving showTooltip prop, that I was updating on Parent component based on an if condition, it was getting updated in Parent component but Tooltip component was not rendering.

const Parent = () => {
   let showTooltip = false;
   if(....){ showTooltip = true; }
   return(
      <Tooltip showTooltip={showTooltip}></Tooltip>
   )
}

The mistake I was doing is to declare showTooltip as a let.

I realized what I was doing wrong I was violating the principles of how rendering works, Replacing it with hooks did the job.

const [showTooltip, setShowTooltip] =  React.useState<boolean>(false);

Here's a way that I consider easier: The general idea is that you want to append a text element to a circle element then play around with its "dx" and "dy" attributes until you position the text at the point in the circle that you like. In my example, I used a negative number for the dx since I wanted to have text start towards the left of the centre.

const nodes = [ {id: ABC, group: 1, level: 1}, {id:XYZ, group: 2, level: 1}, ]

const nodeElems = svg.append('g')
.selectAll('circle')
.data(nodes)
.enter().append('circle')
.attr('r',radius)
.attr('fill', getNodeColor)

const textElems = svg.append('g')
.selectAll('text')
.data(nodes)
.enter().append('text')
.text(node => node.label)
.attr('font-size',8)//font size
.attr('dx', -10)//positions text towards the left of the center of the circle
.attr('dy',4)

Another way to throw an exceptions is assert. You can use assert to verify a condition is being fulfilled if not then it will raise AssertionError. For more details have a look here.

def avg(marks):
    assert len(marks) != 0,"List is empty."
    return sum(marks)/len(marks)

mark2 = [55,88,78,90,79]
print("Average of mark2:",avg(mark2))

mark1 = []
print("Average of mark1:",avg(mark1))

Yes. Use OrderByDescending instead of OrderBy.

You may be getting this error if you are executing CGI files out of a home directory using Apache's mod_userdir and the user's public_html directory is not group-owned by that user's primary GID.

I have been unable to find any documentation on this, but this was the solution I stumbled upon to some failing CGI scripts. I know it sounds really bizarre (it doesn't make any sense to me either), but it did work for me, so hopefully this will be useful to someone else as well.

From a former string concatenater (sp?) you should really consider using String.Format instead of concatenation.

    Dim s1 As String
    Dim i As Integer
    s1 = "Hello"
    i = 1
    String.Format("{0} {1}", s1, i)

It makes things a lot easier to read and maintain and I believe makes your code look more professional. See: code better – use string.format. Although not everyone agrees When is it better to use String.Format vs string concatenation?

First, Hungarian Notation is the practice of using a prefix to display a parameter's data type or intended use. Microsoft's naming conventions for says no to Hungarian Notation http://en.wikipedia.org/wiki/Hungarian_notation http://msdn.microsoft.com/en-us/library/ms229045.aspx

Using UPPERCASE is not encouraged as stated here: Pascal Case is the acceptable convention and SCREAMING CAPS. http://en.wikibooks.org/wiki/C_Sharp_Programming/Naming

Microsoft also states here that UPPERCASE can be used if it is done to match the the existed scheme. http://msdn.microsoft.com/en-us/library/x2dbyw72.aspx

This pretty much sums it up.

Perl

This code computes the occurrences of all columns, and prints a sorted report for each of them:

# columnvalues.pl
while (<>) {
    @Fields = split /\s+/;
    for $i ( 0 .. $#Fields ) {
        $result[$i]{$Fields[$i]}++
    };
}
for $j ( 0 .. $#result ) {
    print "column $j:\n";
    @values = keys %{$result[$j]};
    @sorted = sort { $result[$j]{$b} <=> $result[$j]{$a}  ||  $a cmp $b } @values;
    for $k ( @sorted ) {
        print " $k $result[$j]{$k}\n"
    }
}

Save the text as columnvalues.pl
Run it as: perl columnvalues.pl files*

Explanation

In the top-level while loop:
* Loop over each line of the combined input files
* Split the line into the @Fields array
* For every column, increment the result array-of-hashes data structure

In the top-level for loop:
* Loop over the result array
* Print the column number
* Get the values used in that column
* Sort the values by the number of occurrences
* Secondary sort based on the value (for example b vs g vs m vs z)
* Iterate through the result hash, using the sorted list
* Print the value and number of each occurrence

Results based on the sample input files provided by @Dennis

column 0:
 a 3
 z 3
 t 1
 v 1
 w 1
column 1:
 d 3
 r 2
 b 1
 g 1
 m 1
 z 1
column 2:
 c 4
 a 3
 e 2

.csv input

If your input files are .csv, change /\s+/ to /,/

Obfuscation

In an ugly contest, Perl is particularly well equipped.
This one-liner does the same:

perl -lane 'for $i (0..$#F){$g[$i]{$F[$i]}++};END{for $j (0..$#g){print "$j:";for $k (sort{$g[$j]{$b}<=>$g[$j]{$a}||$a cmp $b} keys %{$g[$j]}){print " $k $g[$j]{$k}"}}}' files*

These steps are working on CentOS 6.5 so they should work on CentOS 7 too:

(EDIT - exactly the same steps work for MariaDB 10.3 on CentOS 8)

1. yum remove mariadb mariadb-server
2. rm -rf /var/lib/mysql If your datadir in /etc/my.cnf points to a different directory, remove that directory instead of /var/lib/mysql
3. rm /etc/my.cnf the file might have already been deleted at step 1
4. Optional step: rm ~/.my.cnf
5. yum install mariadb mariadb-server

[EDIT] - Update for MariaDB 10.1 on CentOS 7

The steps above worked for CentOS 6.5 and MariaDB 10.

I've just installed MariaDB 10.1 on CentOS 7 and some of the steps are slightly different.

Step 1 would become:

yum remove MariaDB-server MariaDB-client

Step 5 would become:

yum install MariaDB-server MariaDB-client

The other steps remain the same.

There is an article on javaworld.com that explains the difference => Which ClassLoader should you use

(1)

Thread context classloaders provide a back door around the classloading delegation scheme.

Take JNDI for instance: its guts are implemented by bootstrap classes in rt.jar (starting with J2SE 1.3), but these core JNDI classes may load JNDI providers implemented by independent vendors and potentially deployed in the application's -classpath. This scenario calls for a parent classloader (the primordial one in this case) to load a class visible to one of its child classloaders (the system one, for example). Normal J2SE delegation does not work, and the workaround is to make the core JNDI classes use thread context loaders, thus effectively "tunneling" through the classloader hierarchy in the direction opposite to the proper delegation.

(2) from the same source:

This confusion will probably stay with Java for some time. Take any J2SE API with dynamic resource loading of any kind and try to guess which loading strategy it uses. Here is a sampling:

• JNDI uses context classloaders
• Class.getResource() and Class.forName() use the current classloader
• JAXP uses context classloaders (as of J2SE 1.4)
• java.util.ResourceBundle uses the caller's current classloader
• URL protocol handlers specified via java.protocol.handler.pkgs system property are looked up in the bootstrap and system classloaders only
• Java Serialization API uses the caller's current classloader by default