You can view the javadoc in Netbeans by clicking on the method and press &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;Shift&lt;/kbd&gt; + &lt;kbd&gt;Space&lt;/kbd&gt;&lt;br&gt; (&lt;kbd&gt;Command&lt;/kbd&gt; + &lt;kbd&gt;Shift&lt;/kbd&gt; + &lt;kbd&gt;Space&lt;/kbd&gt; on Mac) You can also see the various shortkeys in the help menu&gt;keyboard shortcuts card.

**UPDATE:**

You can instead open a &quot;javadoc&quot; window from the menu **Window&gt;IDE Tools&gt;Javadoc Documentation**. This will show the javadoc in a window near the output window for that method when you click on the method or object

I know that in netbeans 8.0 you can hold down the ctrl button and hover over the class or method, etc. and the javadoc window would appear. 

Javadoc won&#39;t show up with just a mouse hover, but you can click on a word (method/class/field/variable/whatever name) and press &lt;kbd&gt;ctrl&lt;/kbd&gt;+&lt;kbd&gt;space&lt;/kbd&gt;. Javadoc should show up.

You can even open Javadoc window and you can see the javadoc in that. I prefer this way

`Window` &gt;&gt; `Other` &gt;&gt; `javadoc`.

Now you can see both your code and respective javadoc.

Update for Netbeans 8:
---
`Window` &gt;&gt; `IDE Tools` &gt;&gt; `Javadoc Documentation`

I am using SQlAlchemy in my web project. What should I use - `scoped_session(sessionmaker())` or plain `sessionmaker()` - and why? Or should I use something else? 

    ## model.py
    from sqlalchemy import *
    from sqlalchemy.orm import *
    
    engine = create_engine(&#39;mysql://dbUser:dbPassword@dbServer:dbPort/dbName&#39;,
    pool_recycle=3600, echo=False)
    metadata = MetaData(engine)
    Session = scoped_session(sessionmaker())
    Session.configure(bind=engine)
    user = Table(&#39;user&#39;, metadata, autoload=True)

    class User(object):
	pass

    usermapper = mapper(User, user)

    ## some other python file called abc.py
    from models import *

    def getalluser():
       session = Session()	
       session.query(User).all()
       session.flush()
       session.close()

    ## onemore file defg.py
    from models import *

    def updateuser():
       session = Session()	
       session.query(User).filter(User.user_id == &#39;4&#39;).update({User.user_lname: &#39;villkoo&#39;})
       session.commit()
       session.flush()
       session.close()

I create a `session = Session()` object for each request and I close it. Am I doing the right thing or is there a better way to do it?



scoped_session(sessionmaker()) or plain sessionmaker() in sqlalchemy?

My coworker accidentally made two commits in the default branch instead of creating new his own development branch.

How can I change this situation and moves these two commits to a new branch?

Mercurial moving commits in another branch

Is it possible, when you mouse hover on method/class so you can see Javadoc in NetBeans 7?

I want similar to Eclipse, when you just mouse hover on `String` and you can read Java API documentation about it.

Maybe there is some hot key for that...

How to see Javadoc documentation on mouse hover in NetBeans?

Is it possible, when you mouse hover on method/class so you can see Javadoc in NetBeans 7?
I want similar to Eclipse, when you just mouse hover on <code>String</code> and you can read Java API documentation about it.
Maybe there is some hot key for that...

Everything works fine, but only if file is small, about 1MB, when I tried it with bigger files, like 20MB my browser display it, instead of force to download, I tried many headers so far, now my code looks:

    PrintWriter out = response.getWriter();
    String fileName = request.getParameter(&quot;filename&quot;);
    
    File f= new File(fileName);
    
    InputStream in = new FileInputStream(f);
    BufferedInputStream bin = new BufferedInputStream(in);
    DataInputStream din = new DataInputStream(bin);
    
    while(din.available() &gt; 0){
        out.print(din.readLine());
        out.print(&quot;\n&quot;);
    }
    
    response.setContentType(&quot;application/force-download&quot;);
    response.setContentLength((int)f.length());
    response.setHeader(&quot;Content-Transfer-Encoding&quot;, &quot;binary&quot;);
    response.setHeader(&quot;Content-Disposition&quot;,&quot;attachment; filename=\&quot;&quot; + &quot;xxx\&quot;&quot;);//fileName);

    
    in.close();
    bin.close();
    din.close();


How to force browser to download file?

I am searching for the shortest way (in code) to initialize list of strings and array of strings, i.e. list/array containing 
&quot;s1&quot;, &quot;s2&quot;, &quot;s3&quot; string elements.



What is the shortest way to initialize List of strings in java?

How to check if an element exist with web driver?

Is using a try catch really the only possible way?

    boolean present;
    try {
       driver.findElement(By.id(&quot;logoutLink&quot;));
       present = true;
    } catch (NoSuchElementException e) {
       present = false;
    }

WebDriver: check if an element exists?

I have searched for this, but unfortunately, I don&#39;t get the correct answer.

    class Helper {
        public static &lt;T&gt; T[] toArray(List&lt;T&gt; list) {
            T[] array = (T[]) new Object[list.size()];
            for (int i = 0; i &lt; list.size(); i++) {
                array[i] = list.get(i);
            }
            return array;
        }
    }

Test it:

    public static void main(String[] args) {
        List&lt;String&gt; list = new ArrayList&lt;String&gt;();
        list.add(&quot;abc&quot;);
        String[] array = toArray(list);
        System.out.println(array);
    }

But there is an error thrown:

    Exception in thread &quot;main&quot; java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.String;
	at test.Helper.main(Helper.java:30)

How to solve this?

------------ 

**UPDATE**

I want this method, because sometimes, the type in my code is too long:

    newEntries.toArray(new IClasspathEntry[0])

I&#39;d hope to call:

    toArray(newEntries)


----------

**FINALLY**

It seems impossible to create such a method, thank you all very much!

Convert a generic list to an array

How do you make an S3 object public via the AWS Java SDK?

Specifically, what API methods via the Java AWS SDK can be used to make an Object public when its uploaded?


How do you make an S3 object public via the aws Java SDK?

I have the older NetBeans 6.7, NetBeans 6.9, and NetBeans 7.0, which used to run on jdk1.6.0_21 and jdk1.6.0_25. Now I&#39;ve removed those JDKs and only have jdk1.6.0_26 and jdk1.7.0 left, but I still want to keep the older versions of NetBeans, but now when I run them, I get this message:

&gt; &quot;Cannot locate java installation in specified jdkhome C:\Program Files (x86)\Java\jdk1.6.0_25 \
&gt; Do you want to try to use default version?&quot;

I tried to find where it&#39;s looking for the &quot;jdk1.6.0_25&quot;, and updated a few configuration files in &quot;C:\Program Files (x86)\NetBeans 6.7&quot; and &quot;C:\Users\USER\.nbi\registry.xml&quot;, and yet the message keeps coming. Where and what do I need to change to point it to `C:\Program Files (x86)\Java\jdk1.6.0_26`?




How can I set the JDK NetBeans runs on?

I am developing a front end of a web app using NetBeans IDE 7.0.1. Recently I had a very nasty bug, which I finally fixed.

Say I have code

    var element = &#39;&lt;input size=&quot;3&quot; id=&quot;foo&quot; name=&quot;elements[foo][0]&quot; /&gt;&#39;;
    $(&#39;#bar&#39;).append(element);

I noticed that something gone wrong when I saw that `size` attribute doesn&#39;t work in Chrome (didn&#39;t checked in other browsers). When I opened that element in Inspector, it was interpreted as something like

    &lt;input id=&quot;&amp;quot;3&amp;quot;&quot; name=&quot;&amp;quot;elements[foo][0]&amp;quot;&quot; 
        size=&quot;&amp;quot;foo&amp;quot;&quot; /&gt;

Which was rather strange. After manually retyping the `element` string character-in-character, the bug was gone. When I undo&#39;ed that change I noticed that Netbeans alerted me about some Unicode characters in my old code. It was `\u200b` - a zero width spaces after each &#39;=&#39;, between &#39;][&#39; and in the end of the string. So the string appeared normal because zero width spaces wasn&#39;t displayed, but after escaping them my string was

    &#39;&lt;input size=\u200b&quot;3&quot; id=\u200b&quot;foo&quot; name=\u200b&quot;elements[foo]\u200b[0]&quot; /&gt;\u200b&#39;

Now where the hell did I get them?

I&#39;m not sure where did I copied the code of `element` from, but it&#39;s definitely one of the following:

 - Other pane of Netbeans Editor with HTML template file;
 - Google Chrome Inspector, &#39;Copy as HTML&#39; action;
 - Google Chrome source view page (very doubtfully).

But I can&#39;t reproduce the bug with neither of that.

I use Netbeans 7.0.1 and Google Chrome 13.0 under Windows 7. No keyboard switchers or anything like it is running. Also I&#39;m using Git for version control, but I didn&#39;t pulled that code, so it is very unlikely that Git is to blame. It can&#39;t be a stupid joke of my colleagues, because they are quite well-mannered.

Any suggestions who messed up my code?

\u200b (Zero width space) characters in my JS code. Where did they come from?

I am unsure of how to code popup message box in my methods.

    public String verify(){
        String result = &quot;failed&quot;;
        int authcode = staffBean.getVerifyCodeByName(getLoginUserName());
       
        if (code == authcode){       
            result =&quot;success&quot;;
        }    
        else{ //statement to popup an error message box
    
        }
        return result;
    }

I have tried to use `JOptionPane` in my method but it does not work:

    String st = &quot;Welcome&quot;;
    JOptionPane.showMessageDialog(null, st);


Popup Message boxes

From today, when I tried to run an app in NetBeans on a 2.3.3 Android platform, it shows me that:

&gt;Failed to allocate memory: 8
&gt;
&gt;This application has requested the Runtime to terminate it in an unusual way.
&gt;Please contact the application&#39;s support team for more information.

and the Emulator doesn&#39;t want to start.

This is for the first time when I see it, and google has no asnwers for this, I tried even with 2 versions of NetBeans 6.9.1 and 7.0.1, still the same error.

Failed to allocate memory: 8

I want a team using different computers to be able to debug PHP on a **remote** server, but I am having a hard time getting Xdebug to work in NetBeans 7.0.1. I’ve tried many online tips, but to no avail.

For the record, I have successfully installed Xdebug **locally** on a Windows 7 machine running WampServer. So I *can* debug PHP with breakpoints in NetBeans, provided I set the *Project Properties-&gt;Run Configuration-&gt;Run As* property to *Local Web Site*. However, as stated above my goal is to debug in NetBeans on a *Remote Web Site*. 

My server is a Ubuntu 11.04 machine. I have used the output from [http://www.xdebug.org/find-binary.php][1] to put the proper binary on the machine. I have modified all `php.ini` files I could find (in both the `php5/apache2` and `php5/cli` directories) to include these lines:

    zend_extension=&quot;/usr/lib/php5/20090626+lfs/xdebug.so&quot;
    xdebug.remote_enable=1
    xdebug.remote_handler=dbgp
    xdebug.remote_host=localhost
    xdebug.remote_port=9000

If I check the `phpinfo.php` web page, it says: 

    This program makes use of the Zend Scripting Language Engine:
    Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
        with Xdebug v2.1.2, Copyright (c) 2002-2011, by Derick Rethans

So Xdebug does seem to be installed properly. Still, when I try debugging in NetBeans, I get the endless status bar message *Waiting For Connection (netbeans-xdebug)*. When I hit the stop button I get *No connection from xdebug was detected within X seconds. The reason could be that xdebug is not installed or not properly configured*.

Maybe I&#39;m confusing local settings with server settings here? [A post][2] said `xdebug.remote_host` should be set to the *IP of the machine running NetBeans*, but I want a team to be able to debug using machines with different IP addresses. A problem could be port 9000, but I have checked that it is not blocked.

Any help that could clarify this would be appreciated!


  [1]: http://www.xdebug.org/find-binary.php
  [2]: https://stackoverflow.com/questions/4528569/xdebug-and-netbeans-problem

Xdebug for remote server not connecting

I am writing the Javadoc for a class that contains its own enums. Is there a way to generate Javadoc for the individual enums? For example, right now I have something like this:

    /**
     * This documents &quot;HairColor&quot;
     */
    private static enum HairColor { BLACK, BLONDE, BROWN, OTHER, RED };

However, this only documents all of the enums as a whole:

![The generated Javadoc][1]

Is there any way to document each of the `HairColor` values individually? Without moving the enum into its own class or changing it from an enum?


  [1]: http://i.stack.imgur.com/BZ7Tz.png

How to Javadoc a Class&#39;s Individual Enums

I just know how to read Javadoc online on a website, but I want to download it for offline reading when no network is available.

I am referring to the *Java&#174; Platform, Standard Edition &amp; Java Development Kit Version x API Specification*.

How can I download the documentation?


How to download Javadoc to read offline?

I have two packages, `Shapes` and `Fruits`:

    com.myproject.Shapes.
        Circle
        Square
        Triangle
    com.myproject.Fruits.
        Apple
        Orange

I am writing the JavaDoc for `Apple` and need to provide an `{@link}` to `Square`.

I have tried all of the following, and none of them work:

    {@link Square}
    {@link com.myproject.Square}

I&#39;ve been able to find documentation for linking to: (a) classes within the same package, or (b) externals URLs, but not classes in another package.

Any ideas what the correct syntax should be? Thanks!

Javadoc linking to a class in another package

Using JavaDoc, how can I reference the value of a final static field in the class?

I want the `???` in this example replaced by the value of the field `STATIC_FIELD`.

    /**
     * This is a simple class with only one static field with the value ???.
     */
    public class Simple {

        /**
         * We can reference the value with {@value} here, 
         * but how do we reference it in the class JavaDoc?
         */
        public static final String STATIC_FIELD = &quot;simple static field&quot;;

    }


How can I reference the value of a final static field in the class?

When I am coding at Netbeans it autocompletes the code and show Javadocs. However when I am using Intellij IDEA if I click **&lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Space&lt;/kbd&gt;** I can see the auto-complete and if I click **&lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Q&lt;/kbd&gt;** I can see the javadoc seperately.

Is it possible to see the Javadoc of element whenever I see auto-complete or click **&lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Space&lt;/kbd&gt;** at Intellij IDEA as like Netbeans?

Content Type	Original Author	Original Content on Stackoverflow
Question	VextoR	View Question on Stackoverflow
Solution 1 - Java	Rakesh	View Answer on Stackoverflow
Solution 2 - Java	Anwuna	View Answer on Stackoverflow
Solution 3 - Java	Aurelien Ribon	View Answer on Stackoverflow
Solution 4 - Java	Raju Penumatsa	View Answer on Stackoverflow

How to see Javadoc documentation on mouse hover in NetBeans?

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

Solution 3 - Java

Solution 4 - Java

Update for Netbeans 8:

Mercurial moving commits in another branch

scoped_session(sessionmaker()) or plain sessionmaker() in sqlalchemy?

Attributions