No there is no difference.
--------------------------

[SwingUtilities][1] class was built to combine all general utility methods used in swing to be in one single class. Internally `SwingUtilities.invokeLater()` calls `EventQueue.invokeLater()`

    1197    public static void invokeLater(Runnable   doRun) {
    1198       EventQueue.invokeLater(doRun);
    1199    }

Reference: http://kickjava.com/src/javax/swing/SwingUtilities.java.htm


  [1]: http://docs.oracle.com/javase/7/docs/api/javax/swing/SwingUtilities.html

I&#39;m trying to create a trigger on a table in my Amazon RDS database, and I can&#39;t seem to make it happen.

I tried to create a trigger on a table in the mysql client I use (Navicat), and got the error that I needed the SUPER privilege to do so. After some searching, I found that you could `SET GLOBAL log_bin_trust_function_creators = 1` to get around this. I tried that using these instructions: http://getasysadmin.com/2011/06/amazon-rds-super-privileges/ (and then restarting the DB server for good measure), but no luck.

I also tried creating the trigger and setting the variable via the mysql commmand line to make sure Navicat wasn&#39;t adding anything unwanted to my sql commands, but that failed, too. It also seems from searching that there&#39;s no way to grant yourself the SUPER privilege.

So ... is creating a trigger possible in RDS?


Can I CREATE TRIGGER in an rds DB?

I only want to have email as mode of login, I don&#39;t want to have username. Is it possible with symfony2/symfony3 and FOSUserbundle?

I read here http://groups.google.com/group/symfony2/browse_thread/thread/92ac92eb18b423fe

But then I am stuck with two constraint violations.

Problem is if the user leaves the email address blank, I get two constraint
violations:

 * Please enter a username
 * Please enter an email

Is there a way to disable validation for a given field, or a better way to
remove a field from the form altogether? 

Remove / Replace the username field with email using FOSUserBundle in Symfony2 / Symfony3

Are there any differences between `EventQueue.invokeLater()` and `SwingUtilities.invokeLater()`? 

Or  is that the latter is just built on top of the former (with no modifications) for the sake of design?

SwingUtilities.invokeLater() vs EventQueue.invokeLater()

<p>Are there any differences between <code>EventQueue.invokeLater()</code> and <code>SwingUtilities.invokeLater()</code>?</p>
<p>Or  is that the latter is just built on top of the former (with no modifications) for the sake of design?</p>


You can specify in your maven [settings][1] file that you want to run in offline mode, but is there an equivalent command line option? 

I would imagine something like e.g.

    mvn install -Dmaven.offline.true



 [1]: http://maven.apache.org/settings.html

Is there a maven command line option for offline mode?

In an application I have been building we rely on SharedPreferences quite a bit, this got me thinking about what is best practice when it comes to accessing SharedPreferences.  For instance many people say the appropriate way to access it is via this call:

    PreferenceManager.getDefaultSharedPreferences(Context context)

However it seems like this could be dangerous.  If you have a large application that is relying on SharedPreferences you could have key duplication, especially in the case of using some third party library that relies on SharedPreferences as well.  It seems to me that the better call to use would be:

    Context.getSharedPreferences(String name, int mode)

This way if you have a class that heavily relies on SharedPreferences you can create a preference file that is used only by your class.  You could use the fully qualified name of the class to ensure that the file will most likely not be duplicated by someone else.

Also based on this SO question: https://stackoverflow.com/questions/4371273/should-accessing-sharedpreferences-be-done-off-the-ui-thread, it seems that accesses SharedPreferences should be done off the UI thread which makes sense.

Are there any other best practices Android developers should be aware of when using SharedPreferences in their applications?

Android SharedPreferences Best Practices

Code: 
&gt;     public class SMH extends Activity {  
&gt;
&gt;         public void onCreate(Bundle b) {  
&gt;             super.onCreate(b);  
&gt;             setContentView(R.layout.main);  
&gt; 
&gt;             TextView tv = (TextView) findViewById(R.id.tv);  
&gt; 
&gt;             new CountDownTimer(10000, 2000) {  
&gt;                 public void onTick(long m) {  
&gt;                    long sec = m/1000+1;  
&gt;                    tv.append(sec+&quot; seconds remain\n&quot;);  
&gt;                 }  
&gt;                 public void onFinish() {  
&gt;                    tv.append(&quot;Done!&quot;);  
&gt;                 }  
&gt;             }.start();  
&gt;        }

Output:  
    10 seconds remain  
    8 seconds remain  
    6 seconds remain  
    4 seconds remain  
    Done! 



Problem:  

How do I get it to show &quot;_2 seconds remain_&quot;? The time elapsed is indeed 10 seconds, but the last onTick() never happens. If I change the second parameter from 2000 to 1000, then this is the output:  
  
10 seconds remain  
9 seconds remain  
8 seconds remain  
7 seconds remain  
6 seconds remain  
5 seconds remain  
4 seconds remain  
3 seconds remain  
2 seconds remain  
Done!  
  


So you see, it seems to be skipping that last onTick() call. And btw, the XML file is basically the default main.xml with the TextView assigned the id _tv_ and the text set to &quot;&quot;.


Android: CountDownTimer skips last onTick()!

I am starting to configure my development environment and I am using Spring Tool Suite 2.8.1 along with m2E 1.01.

As far as I can tell, since this is a Maven Project (my first), my Maven POM is dictating (along with m2E smarts) my project build configuration and dependencies.

What I would like to know is why my IDE is displaying Java Build Problems that read &quot;Archive required for library *library/path/somejar.jar* cannot be read or is not a valid zip file&quot; when I can see the jars in my .m2 repository?

All the errors pertained to commons-logging:1.1.1 which I excluded in my parent-pom. This was a transistive dependancy via spring-context-support:3.0.5. I excluded that library from my build and now the errors pertain to the spring-context-support library.

I have attached a screenshot to illustrate.

![Markers][1]

  [1]: http://i.stack.imgur.com/0QfjQ.png



Compiler error &quot;archive for required library could not be read&quot; - Spring Tool Suite

I&#39;m reading a JSON response with [Gson](http://code.google.com/p/google-gson/), which returns somtimes a &lt;code&gt;NumberFormatException&lt;/code&gt; because an expected &lt;code&gt;int&lt;/code&gt; value is set to an empty string. Now I&#39;m wondering what&#39;s the best way to handle this kind of exception. If the value is an empty string, the deserialization should be 0.

Expected JSON response:

    {
       &quot;name&quot; : &quot;Test1&quot;,
       &quot;runtime&quot; : 90
    }

But sometimes the runtime is an empty string:

    {
       &quot;name&quot; : &quot;Test2&quot;,
       &quot;runtime&quot; : &quot;&quot;
    }

The java class looks like this:

    public class Foo
    {
        private String name;
        private int runtime;
    }

And the deserialization is this:

    String input = &quot;{\n&quot; +
                   &quot;   \&quot;name\&quot; : \&quot;Test\&quot;,\n&quot; +
                   &quot;   \&quot;runtime\&quot; : \&quot;\&quot;\n&quot; +
                   &quot;}&quot;;

    Gson gson = new Gson();
    Foo foo = gson.fromJson(input, Foo.class);

Which throws a &lt;code&gt;com.google.gson.JsonSyntaxException: java.lang.NumberFormatException: empty String&lt;/code&gt; because an empty String is returned instead of an int value. 

Is there a way to tell Gson, &quot;*if you deserialize the field &lt;code&gt;runtime&lt;/code&gt; of the Type &lt;code&gt;Foo&lt;/code&gt; and there is a NumberFormatException, just return the default value 0*&quot;?

My workaround is to use a &lt;code&gt;String&lt;/code&gt; as the Type of the &lt;code&gt;runtime&lt;/code&gt; field instead of &lt;code&gt;int&lt;/code&gt;, but maybe there is a better way to handle such errors.

How to handle a NumberFormatException with Gson in deserialization a JSON response

`JOptionPane` can be used to get string inputs from user, but in my case, I want to display a password field in `showInputDialog`.

The way I need is the input given by the user should be masked and the return value must be in `char[]`. I need a dialog box with a message, password field, and two buttons. Can that be done? Thanks.

JOptionPane to get password

I want to call a method `confirmExit()` when the red close button of the title bar of a JFrame is clicked.

How can I capture that event?

I&#39;d also like to prevent the window from closing if the user chooses not to proceed.

How to capture a JFrame&#39;s close button click event?

Coming from .NET i am so used calling Alert() in desktop apps. However in this java desktop app, I just want to alert a message saying &quot;thank you for using java&quot; I have to go through this much suffering:

(using a JOptionPane)

Is there an easier way?


How to present a simple alert message in java?

Swing components have multiple methods related to updates of screen layout, in particular:

 - [`validate()`][1]
 - [`invalidate()`][2]
 - [`revalidate()`][3]

The Java documentation defines these somewhat from a technical perspective, but it&#39;s not particularly clear how they are meant to be used.

What is the difference between these, and in what circumstances should you use one rather than the others?


  [1]: http://docs.oracle.com/javase/8/docs/api/java/awt/Container.html#validate--
  [2]: http://docs.oracle.com/javase/8/docs/api/java/awt/Container.html#invalidate--
  [3]: http://docs.oracle.com/javase/8/docs/api/javax/swing/JComponent.html#revalidate--

Difference between validate(), revalidate() and invalidate() in Swing GUI

I&#39;m a .Net developer but somehow I was task to create a simple application in java for some extra reason. I was able to create that application but my problem is how can i center the form in the screen when the application is launched? 

Here is my code:

    private void formWindowActivated(java.awt.event.WindowEvent evt) 
    {
            // Get the size of the screen
            Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();

            // Determine the new location of the window
            int w = this.getSize().width;
            int h = this.getSize().height;
            int x = (dim.width-w)/2;
            int y = (dim.height-h)/2;

            // Move the window
            this.setLocation(x, y);
    }

The code above works fine but the problem is I&#39;ve seen the form moving from the topleft most to center screen. I also tried adding that code in `formWindowOpened` event and still shows same action. Is there a better way for this? Just like in `.NET Application` there is a `CenterScreen Position`. Or if the code above is correct, on what Event will i put it?

Thanks for reading this.

Content Type	Original Author	Original Content on Stackoverflow
Question	edgar	View Question on Stackoverflow
Solution 1 - Java	Harry Joy	View Answer on Stackoverflow

SwingUtilities.invokeLater() vs EventQueue.invokeLater()

Java Problem Overview

Java Solutions

Solution 1 - Java

No there is no difference.

Remove / Replace the username field with email using FOSUserBundle in Symfony2 / Symfony3

Can I CREATE TRIGGER in an rds DB?

Attributions