How to print hello world

class hello{
public static void main (String[]args){
system.out.println(" HELLO WORLD");
Pleasee how to print output to printer with the coordinat x,y
in text mode (dotmatrix printer)???
thx

hi,
http://www.java4less.com/textprinter/index.html

Similar Messages

How to Deploy Hello World in SOA suggest Step by step procedure

HI
I am done with the installation of SOA on Windows now I want to deploy same sample like Hello World or my first page.?
When you install SOA all the default example get automatically get installed or do we need to do something else.
Where should I check (can you please let me know the location)
Can you please let me know the step by step procedure for that.
Regards
User649230

Refer below links
http://download-uk.oracle.com/docs/cd/B31017_01/index.htm
http://www.oracle.com/technology/tech/fmw4apps/ebs/BPEL-Hello-World.pdf
Regards

Warning Noob: Sending "Hello World!" in Printer using Java Applet

Hello guys!
im a newbie in java programming... i hope that you can help me with my problem.
how can i print "Hello World!" in printer using java applet. lets pretend that the applet is digitally signed.
i tried window.print in javascript but unfortunately, that is not what i am looking for.
thanks for reading my post and i hope that you help me with my quest in java =)

An applet is still part of the Swing package. I assume you're extending JApplet. There isn't anything in the print API that says it can't be done in an applet. Except that you might have to sign your applet Jar file with a digital certificate to get the printing to work.

Cannot compile my Hello World

Hello I am new to Java,
I am running openSUSE 11.1.
on running the javac compiler this is what I get.:
alon@linux-6xrt:~/java> javac Ch2Sample1.java
/usr/lib/gcc/i586-suse-linux/4.3/../../../crt1.o: In function `_start':
/usr/src/packages/BUILD/glibc-2.9/csu/../sysdeps/i386/elf/start.S:115: undefined reference to `main'
collect2: ld returned 1 exit status
alon@linux-6xrt:~/java> This is my java code
import javax.swing.*;
public class Ch2Sample1 {
     public static void main (String [] args )   {
     JFrame      myWindow;
     myWindow = new JFrame();
     myWindow.setSize(300, 300);
     myWindow.setTitle("My First Java ");
     myWindow.setVisible(true);
     System.out.print("Hello World");
}I am pretty much at a loss.

Thank you
I followed your advice and
javac -v
Using built-in specs.
Reading specs from /usr/lib/gcc/i586-suse-linux/4.3/libgcj.spec
rename spec startfile to startfileorig
rename spec lib to liborig
Target: i586-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --libdir=/usr/lib --libexecdir=/usr/lib --enable-languages=c,c++,objc,fortran,java --enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.3 --enable-ssp --disable-libssp --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux' --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.3-1.5.0.0/jre --with-ecj-jar=/usr/lib/gcc/i586-suse-linux/4.3/ecj.jar --enable-java-awt=gtk --enable-gtk-cairo --disable-libjava-multilib --disable-libmudflap --with-slibdir=/lib --with-system-zlib --enable-__cxa_atexit --enable-libstdcxx-allocator=new --disable-libstdcxx-pch --enable-version-specific-runtime-libs --program-suffix=-4.3 --enable-linux-futex --without-system-libunwind --with-cpu=generic --build=i586-suse-linux
Thread model: posix
gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux)
alon@linux-6xrt:/usr/lib/jvm> I guess I am using gcj
BTW I am using openSUSE, I use geany editor and I type all the command the terminal.. no IDE for me.
I gather I should down the java compiler from Sun then?.
I have found this
java                        java-gcj       jre-1.6.0-openjdk
java-1.5.0                  jre            jre-gcj
java-1.5.0-gcj              jre-1.5.0      jre-openjdk
java-1.5.0-gcj-4.3-1.5.0.0 jre-1.5.0-gcj
java-1.6.0-openjdk-1.6.0    jre-1.6.0
alon@linux-6xrt:/usr/lib/jvm> So I guess I have the openjdk?
Your advice?

After "Hello World" - my first adventure in accepting user input

Hey
I'm trying to teach myself java and I'm attempting to move on from printing hello world to the screen :)
I've written the following:
import java.io.*;
public class firstapp {
     int value1,
          value2,
          result;
     public static int add(int value1, int value2){
         return value1 + value2;
     public static void main(String args[]){
          int value1,
                    value2,
                    result;
          BufferedReader reader;
          reader = new BufferedReader(new InputStreamReader(System.in));
          //try block
          try{
               System.out.println("Please type the first number");
               value1 = reader.read();
               System.out.println("Please type the second number");
               value2 = reader.read();
               result = add(value1,value2);
               System.out.println("Added together they equal " + result);
     catch (IOException ioe){
          System.out.println("Something bad happened");{
     }It doesnt do what I expected though. It prompts for the first number which i enter. It then prints "Please type the second number" but doesnt accept any input and goes on to print "Added together they equal 62" (this is when 1 is entered as the first number).
Im so new to this so excuse it being the most basic of basic questions. But where is it getting 62 from?
Thanks

BufferedReader.read() isn't the best method for this. It reads a single character, which you store as an int. If you entered "5" for example, the ascii value of 5 is being stored, not the value 5. The second read() call is most likely reading the carriage return, so it adds 53 and 13, and prints that out, for example. If you have version 1.5 or better, use the Scanner class instead, it has a nextInt() method that does what you want.

Hello World App : Exception in thread "main" java.lang.NoClassDefFoundErro

Hi
I have downloaded a latest version of JDK, I have several other versions on my machine from other times i endeavored to work on Java, but never got to doing so.
I have compiled the HelloWorldApp (code below) but when i try to run it, I get the error below: My java version is listed as 1.5.0_06. Any insight would be great.
F:\GamingExtravaGanza>java HelloWorldApp.class
Exception in thread "main" java.lang.NoClassDefFoundError: HelloWorldApp/class
* The HelloWorldApp class implements an application that
* simply prints "Hello World!" to standard output.
class HelloWorldApp {
public static void main(String[] args) {
System.out.println("Hello World!"); // Display the string.
}F:\GamingExtravaGanza>java -version
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing)
Mike

I had tried without the class extension, too. Anyone have ideas for why i am getting the error ?
F:\GamingExtravaGanza>java HelloWorldApp
Exception in thread "main" java.lang.UnsupportedClassVersionError:
umber in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Sour
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Metho
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Sourc
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)

SOA 11g Tutorial/Hello World application

Dear All,
I am very much new to SOA Pls let me know Tutorials or How to build Hello world or where to start the building the applications.
Best regards,
Raj

http://www.oracle.com/technology/sample_code/products/soa/index.html
http://blogs.oracle.com/soabpm/2009/12/soa_suite_11g_-somelong_awai.html
http://www.oracle.com/technetwork/developer-tools/jdev/index-095536.html
Regards,
Anuj

Hello World help

I am a newbie to Flash Media Development Server 3, on Vista,
trying to get the Hello World sample to work.
When I follow the instructions and place the Hello World
folder in the applications folder and try to test the movie, I get
a "read only" error. I have used the publish settings to make sure
the default paths are used. I read about MS file folder permissions
using cmd prompt ATTRIB, but discovered if I place the Hello World
folder on my desktop I don't get the "read only" error.
I'm seeing the connect button, when I publish to html, but
when I hit the button I just get the disconnect button, and no
"Hello World".
I have the .as, .fla, .swf files on my desktop Hello World
folder, and the .asc in the applications/Hello World folder.
Could someone give me some advice on how to get Hello World
working?
Thank You.

I'm new at this myself so this may or may not help but I think you have a syntax error...
You have:
System.out.printIn("Hello World!");
I think it should be:
System.out.println("Hello World!");
You have the letter "I" ("I"ndia) where a "l" ("l"etter) should be used in the term "println"
Hope that does it...

How can I remove "Hello World!" from my browser menu bar

I just noticed there'e something in my brower menu bar that has never been there before. Next to the other menu options (File, Edit, View, History, etc.) appears the words"Hello World!". I know it wasn't there two weeks ago, and it's highly unlikely I would have missed seeing it a few days ago when I last did extensive browsing. In hopes of fixing the problem myself, I deleted the only two FF add-ons installed to my PC in the past month. I also ran a system restore to a point created 35 days ago. But "Hello World!" still remained in the menu bar. When I try clicking it on, nothing happens. I tried removing it by pressing the "Customize"option in the toolbar, but it "Hello World!" would not drag down from the menu bar. I was still running FF version 22.0., and when I saw that an update to FF 23.0 was available, I ran the update, but this did nothing the fix my issue (I'm currently back to FF22.0, due to the System Restore that I ran earlier). Finally, I went to both my "Program Files" folders, and sorted them using "Date Modified", to identify any programs changed or added in the past several weeks. There were only a few programs changed in this timespan, so I scoured all files within those few folders, but nothing stood out as unusual. CAn anyone tell me what this "Hello World!" is or why it is appearing in my menu bar? Most importantly, would anyone know how I can remove it permanently ? Following Firefox's instructions, I've created a Print Screen photo showing my brower toolbars, including the menu bar ( at the very top just above my address bar), so that you can see where "Hello World!" appears. Not sure yet how to attach the PrtScn photo to this question I'm about to submit, so if it doesn't make it to the forum with my question, I can send it to anyone who emails me a reply.
Thank You.

THis is a reply to my own question, so that I can upload the Print Screen image of my browser toolbar. Look for "Hello World!" at the top, just above my address bar. Thanks again to anyone who can help me remove this from my menu bar.

HOW TO: Create a GUI "Hello World"


This document describes how to create and run a very simple "Hello World"
Java GUI app using JDeveloper. The application will have one button and one
text field. Clicking the button will populate the text field with the message,
"Hello World!"
Creating The New Application
In this section, we will create an application with an empty frame.
<ol>
[*]Choose File | New Workspace.
</li>
[*]Choose File | Save Workspace.
</li>
[*]Enter <TT>HelloGui.jws</tt> as the name for the workspace.
This creates a Workspace called HelloGui. A workspace organizes all the projects
you need to work on at one time.
</li>
[*]Choose File | New Project.
The Project Wizard opens. This wizard will help you create a new project called
HelloGui. A project contains all the files that go together in one "tier"--for
example, all the files belonging to a single Java Application client, or all
the files belonging to an Enterprise Java Bean. Because we are working on
a simple, one-tier application, we will only need one project in our workspace.
</li>
[*]If the Welcome page appears, click Next.
</li>
[*]On the Project Type page, in the What is the Project's Filename?
field, change the filename to <TT>HelloGui.jpr</tt>. Leave the rest of the
path the same.
</li>
[*]Select A Project containing a new... and choose Application
from the dropdown list.
</li>
[*]Click Next.
</li>
[*]On the Project Options page, in the What is the name of the project's
default package field, enter <TT>helloGui</tt>.
</li>
[*]Click Next.
</li>
[*]On the Project Information page, you can enter any information about your
project that you wish.
</li>
[*]Click Finish.
The Application Wizard opens.
</li>
[*]In the Class field, enter <TT>HelloApp</tt>.
</li>
[*]Select the New Empty Frame radio button.
</li>
[*]Click OK.
The Frame Wizard opens.
</li>
[*]In the Class field, enter <TT>HelloFrame</tt>.
</li>
[*]Click OK.
JDeveloper creates an application, <TT>HelloApp</tt>, containing an empty
frame, <TT>HelloFrame</tt>. The source code for these classes appears in the
Navigator, which is the upper left-hand pane in the JDeveloper IDE.
</li>
[*]Choose File | Save All.</li>
</ol>
Adding a Panel to the Frame
In this section, we will now add a panel to the frame. In the next section,
we will add all the other components to this panel.
<ol>
[*]In the Navigator, double-click <TT>HelloFrame.java</tt>.
A viewer opens. This viewer has four tabs at the bottom:
<ul>
[*]Source, the currently active tab, which displays the source code
of the selected class</li>
[*]Design, which invokes a visual layout designer</li>
[*]Class, which invokes an editor for the class' attributes, and
can help you stay JavaBean complient</li>
[*]Doc, which displays the class' JavaDoc
</li>
</ul>
</li>
[*]Click the Design tab.
The viewer now displays a grey square, a graphical mock-up of your frame.
Also, on the right-hand side of your screen, the Property Inspector opens.
This allows you to quickly set attributes and define events for components.
</li>
[*]In the component palette (the tabbed toolbar near the top of your screen),
select the Swing Containers tab.
</li>
[*]Click the blue square (described in rollover text as <TT>JPanel</tt>) and
click on your frame to add the panel.
The Property Inspector now displays attributes of the JPanel.
</li>
[*]In the Property Inspector, click twice inside the box beside the name
field.
</li>
[*]Change the name to mainPanel.
</li>
[*]Click the box beside the layout field.
</li>
[*]Choose XYLayout.
XYLayout is an easy-to-use Layout for prototyping. Later, we will change the
layout to a more portable one.</li>
</ol>
Adding Components to the Panel
In this section, we finish laying out a prototype UI. We will add polish and
portability to the UI later.
<ol>
[*]In the Component Palette, select the Swing tab.
</li>
[*]Select the <TT>JTextField</tt> component, which looks like a text field
with a cursor.
</li>
[*]In your panel, click and drag the cursor to outline the text field.
Don't worry if the text field doesn't have exactly the right size or position.
We will adjust these later.
The Property Inspector now displays attributes of the JTextField.
</li>
[*]In the Property Inspector, change the name (just as you did for the
JPanel) to <TT>displayField</tt>.
</li>
[*]Change the text to nothing (erase the value that is already there).
</li>
[*]In the Component Palette, select the <TT>JButton</tt> component, which looks
like a button being clicked.
</li>
[*]In your panel, click and drag the cursor to outline the button.
The Property Inspector now displays attributes of the JButton.
</li>
[*]In the Property Inspector, change the name and action command
to helloButton.
</li>
[*]Change the text to <TT>Say Hello!</tt>.
</li>
[*]Choose File | Save All.</li>
</ol>
Wiring Up the UI
In this section, we wire the UI so that clicking the button causes "Hello
World!" to display in the text field.
<ol>
[*]In the Property Inspector, select the Events tab.
</li>
[*]Click the box next to the Action Performed field and press the Enter
key.
This creates a method, <TT>helloButton_actionPerformed()</tt>, which will
be invoked when the button is clicked, and displays the source code for the
method stub in the viewer.
</li>
[*]In the viewer, add the following command to the body of the method:
<TT>displayField.setText("Hello World!");</tt>
</li>
[*]Choose File | Save All.</li>
</ol>
Testing the Prototype Application
<ol>
[*]Choose Run | Run "HelloApp".
Your application appears, with a blank text field and a button labeled "Say
Hello!"
</li>
[*]Click the button.
The text "Hello World!" appears in the text field.
</li>
[*]Close your application.</li>
</ol>
Refining the UI
In this section, we polish the UI so that the components have the right size
and alignment, the text in the text field shows up red, and the panel uses the
portable GridBag layout instead of the JDeveloper-specific XYLayout.
<ol>
[*]In the viewer, select the Design tab.
</li>
[*]Select your text field.
</li>
[*]Drag the edges of your text field until it is the size you want.
</li>
[*]Drag the center of the text field until it is the vertical position you
want.
</li>
[*]Right-click the text field and choose Align Center.
This centers your text field horizontally in the frame.
</li>
[*]In the property inspector, click the box next to the foreground field.
</li>
[*]Click the ellipses (...).
A color editor appears.
</li>
[*]Select Red from the dropdown list.
</li>
[*]Click OK.
</li>
[*]On your frame, select your button.
</li>
[*]Drag the right edge of your button until it is the horizontal size you want.
</li>
[*]Select your text field, and multi-select your button by control-clicking
it.
</li>
[*]Right-click your button or text field.
</li>
[*]Choose Same Size Vertical.
This sets the height of all selected components to that of the first selected
component (the text field).
</li>
[*]Right-click your button or text field.
</li>
[*]Choose Align Center.
This aligns the center of all selected components to that of the first selected
component (the text field).
</li>
[*]Select your panel by clicking anywhere on the grey background in the visual
designer.
</li>
[*]In the Property Inspector, click the box beside the layout field.
</li>
[*]Select GridBagLayout from the dropdown list.
</li>
[*]Choose File | Save All.</li>
</ol>
Running the Finished Application From Within JDeveloper
<ol>
[*]Choose Run | Run "HelloApp".
Your application appears, with a blank text field and a button labeled "Say
Hello!"
</li>
[*]Click the button.
The text "Hello World!" appears in the text field, in red.
</li>
[*]Close your application.</li>
</ol>
Deploying the Application to Your File System
<ol>
[*] In the Navigator, right-click <tt>HelloGui.jpr</tt> and choose New Deployment
Profile.
The Deployment Profile Wizard opens.
</li>
[*]If the Welcome page appears, click Next.
</li>
[*]On the Delivery page, select Web Application or Command-Line Application
from the dropdown list, and click Next.
</li>
[*]On the Staging Area page, in the Deployment Destination field, enter
<tt><JDeveloper>/HelloGui</tt>, where <tt><JDeveloper></tt>
is your JDeveloper root directory. Click Next.
</li>
[*]On the Project page, select all the <tt>.java</tt> files and click Next.
</li>
[*]Skip the Archive page and Applet Tags page by clicking Next on each.
</li>
[*]On the Libraries page, shuttle all libraries from the Project Libraries
list to the Deployed Libraries list, and click Next.
</li>
[*]On the Finish page, name the profile <tt>HelloGui.prf</tt>, and click Finish.
</li>
[*]When JDeveloper asks you if you want to deploy now, click Yes.</li>
</ol>
JDeveloper will archive your application files and copy this archive and all
other required libraries to <tt><JDeveloper>/HelloGui</tt>.
Running the Application from the Command Line
<ol>
[*]Open a command-line prompt.
</li>
[*]Enter the following script.
Note: You may want to create a batch file containing this script. Be
sure to replace JDeveloper_Home with your JDeveloper home directory.
<pre>set __CLASSPATH_ROOT_DIR__=JDeveloper_Home\HelloGui
set CLASSPATH="%__CLASSPATH_ROOT_DIR__%\HelloGui.jar"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\xmlparserv2.jar"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\classes12.zip"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\jdev-rt.zip"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\swingall.jar"
cd JDeveloper_Home\HelloGui
jre -cp %CLASSPATH% helloGui.HelloApp</pre>
</li>
[*]Your application appears, with a blank text field and a button labeled "Say
Hello!"
</li>
[*]Click the button.
The text "Hello World!" appears in the text field, in red.
</li>
[*]Close your application.</li>
</ol>


null

Hello,
I followed your instruction step by step to make this "Hello World", but when I run it, I got message "cannot find the runable node". What do I miss here? Thanks.
<BLOCKQUOTE>quote:<HR>Originally posted by Avrom Faderman ([email protected]):

This document describes how to create and run a very simple "Hello World"
Java GUI app using JDeveloper. The application will have one button and one
text field. Clicking the button will populate the text field with the message,
"Hello World!"
[b]Creating The New Application
In this section, we will create an application with an empty frame.
<ol>
[*]Choose File | New Workspace.
</li>
[*]Choose File | Save Workspace.
</li>
[*]Enter <TT>HelloGui.jws</tt> as the name for the workspace.
This creates a Workspace called HelloGui. A workspace organizes all the projects
you need to work on at one time.
</li>
[*]Choose File | New Project.
The Project Wizard opens. This wizard will help you create a new project called
HelloGui. A project contains all the files that go together in one "tier"--for
example, all the files belonging to a single Java Application client, or all
the files belonging to an Enterprise Java Bean. Because we are working on
a simple, one-tier application, we will only need one project in our workspace.
</li>
[*]If the Welcome page appears, click Next.
</li>
[*]On the Project Type page, in the What is the Project's Filename?
field, change the filename to <TT>HelloGui.jpr</tt>. Leave the rest of the
path the same.
</li>
[*]Select A Project containing a new... and choose Application
from the dropdown list.
</li>
[*]Click Next.
</li>
[*]On the Project Options page, in the What is the name of the project's
default package field, enter <TT>helloGui</tt>.
</li>
[*]Click Next.
</li>
[*]On the Project Information page, you can enter any information about your
project that you wish.
</li>
[*]Click Finish.
The Application Wizard opens.
</li>
[*]In the Class field, enter <TT>HelloApp</tt>.
</li>
[*]Select the New Empty Frame radio button.
</li>
[*]Click OK.
The Frame Wizard opens.
</li>
[*]In the Class field, enter <TT>HelloFrame</tt>.
</li>
[*]Click OK.
JDeveloper creates an application, <TT>HelloApp</tt>, containing an empty
frame, <TT>HelloFrame</tt>. The source code for these classes appears in the
Navigator, which is the upper left-hand pane in the JDeveloper IDE.
</li>
[*]Choose File | Save All.</li>
</ol>
Adding a Panel to the Frame
In this section, we will now add a panel to the frame. In the next section,
we will add all the other components to this panel.
<ol>
[*]In the Navigator, double-click <TT>HelloFrame.java</tt>.
A viewer opens. This viewer has four tabs at the bottom:
<ul>
[*]Source, the currently active tab, which displays the source code
of the selected class</li>
[*]Design, which invokes a visual layout designer</li>
[*]Class, which invokes an editor for the class' attributes, and
can help you stay JavaBean complient</li>
[*]Doc, which displays the class' JavaDoc
</li>
</ul>
</li>
[*]Click the Design tab.
The viewer now displays a grey square, a graphical mock-up of your frame.
Also, on the right-hand side of your screen, the Property Inspector opens.
This allows you to quickly set attributes and define events for components.
</li>
[*]In the component palette (the tabbed toolbar near the top of your screen),
select the Swing Containers tab.
</li>
[*]Click the blue square (described in rollover text as <TT>JPanel</tt>) and
click on your frame to add the panel.
The Property Inspector now displays attributes of the JPanel.
</li>
[*]In the Property Inspector, click twice inside the box beside the name
field.
</li>
[*]Change the name to mainPanel.
</li>
[*]Click the box beside the layout field.
</li>
[*]Choose XYLayout.
XYLayout is an easy-to-use Layout for prototyping. Later, we will change the
layout to a more portable one.</li>
</ol>
Adding Components to the Panel
In this section, we finish laying out a prototype UI. We will add polish and
portability to the UI later.
<ol>
[*]In the Component Palette, select the Swing tab.
</li>
[*]Select the <TT>JTextField</tt> component, which looks like a text field
with a cursor.
</li>
[*]In your panel, click and drag the cursor to outline the text field.
Don't worry if the text field doesn't have exactly the right size or position.
We will adjust these later.
The Property Inspector now displays attributes of the JTextField.
</li>
[*]In the Property Inspector, change the name (just as you did for the
JPanel) to <TT>displayField</tt>.
</li>
[*]Change the text to nothing (erase the value that is already there).
</li>
[*]In the Component Palette, select the <TT>JButton</tt> component, which looks
like a button being clicked.
</li>
[*]In your panel, click and drag the cursor to outline the button.
The Property Inspector now displays attributes of the JButton.
</li>
[*]In the Property Inspector, change the name and action command
to helloButton.
</li>
[*]Change the text to <TT>Say Hello!</tt>.
</li>
[*]Choose File | Save All.</li>
</ol>
Wiring Up the UI
In this section, we wire the UI so that clicking the button causes "Hello
World!" to display in the text field.
<ol>
[*]In the Property Inspector, select the Events tab.
</li>
[*]Click the box next to the Action Performed field and press the Enter
key.
This creates a method, <TT>helloButton_actionPerformed()</tt>, which will
be invoked when the button is clicked, and displays the source code for the
method stub in the viewer.
</li>
[*]In the viewer, add the following command to the body of the method:
<TT>displayField.setText("Hello World!");</tt>
</li>
[*]Choose File | Save All.</li>
</ol>
Testing the Prototype Application
<ol>
[*]Choose Run | Run "HelloApp".
Your application appears, with a blank text field and a button labeled "Say
Hello!"
</li>
[*]Click the button.
The text "Hello World!" appears in the text field.
</li>
[*]Close your application.</li>
</ol>
Refining the UI
In this section, we polish the UI so that the components have the right size
and alignment, the text in the text field shows up red, and the panel uses the
portable GridBag layout instead of the JDeveloper-specific XYLayout.
<ol>
[*]In the viewer, select the Design tab.
</li>
[*]Select your text field.
</li>
[*]Drag the edges of your text field until it is the size you want.
</li>
[*]Drag the center of the text field until it is the vertical position you
want.
</li>
[*]Right-click the text field and choose Align Center.
This centers your text field horizontally in the frame.
</li>
[*]In the property inspector, click the box next to the foreground field.
</li>
[*]Click the ellipses (...).
A color editor appears.
</li>
[*]Select Red from the dropdown list.
</li>
[*]Click OK.
</li>
[*]On your frame, select your button.
</li>
[*]Drag the right edge of your button until it is the horizontal size you want.
</li>
[*]Select your text field, and multi-select your button by control-clicking
it.
</li>
[*]Right-click your button or text field.
</li>
[*]Choose Same Size Vertical.
This sets the height of all selected components to that of the first selected
component (the text field).
</li>
[*]Right-click your button or text field.
</li>
[*]Choose Align Center.
This aligns the center of all selected components to that of the first selected
component (the text field).
</li>
[*]Select your panel by clicking anywhere on the grey background in the visual
designer.
</li>
[*]In the Property Inspector, click the box beside the layout field.
</li>
[*]Select GridBagLayout from the dropdown list.
</li>
[*]Choose File | Save All.</li>
</ol>
Running the Finished Application From Within JDeveloper
<ol>
[*]Choose Run | Run "HelloApp".
Your application appears, with a blank text field and a button labeled "Say
Hello!"
</li>
[*]Click the button.
The text "Hello World!" appears in the text field, in red.
</li>
[*]Close your application.</li>
</ol>
Deploying the Application to Your File System
<ol>
[*] In the Navigator, right-click <tt>HelloGui.jpr</tt> and choose New Deployment
Profile.
The Deployment Profile Wizard opens.
</li>
[*]If the Welcome page appears, click Next.
</li>
[*]On the Delivery page, select Web Application or Command-Line Application
from the dropdown list, and click Next.
</li>
[*]On the Staging Area page, in the Deployment Destination field, enter
<tt><JDeveloper>/HelloGui</tt>, where <tt><JDeveloper></tt>
is your JDeveloper root directory. Click Next.
</li>
[*]On the Project page, select all the <tt>.java</tt> files and click Next.
</li>
[*]Skip the Archive page and Applet Tags page by clicking Next on each.
</li>
[*]On the Libraries page, shuttle all libraries from the Project Libraries
list to the Deployed Libraries list, and click Next.
</li>
[*]On the Finish page, name the profile <tt>HelloGui.prf</tt>, and click Finish.
</li>
[*]When JDeveloper asks you if you want to deploy now, click Yes.</li>
</ol>
JDeveloper will archive your application files and copy this archive and all
other required libraries to <tt><JDeveloper>/HelloGui</tt>.
Running the Application from the Command Line
<ol>
[*]Open a command-line prompt.
</li>
[*]Enter the following script.
Note: You may want to create a batch file containing this script. Be
sure to replace JDeveloper_Home with your JDeveloper home directory.
<pre>set __CLASSPATH_ROOT_DIR__=JDeveloper_Home\HelloGui
set CLASSPATH="%__CLASSPATH_ROOT_DIR__%\HelloGui.jar"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\xmlparserv2.jar"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\classes12.zip"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\jdev-rt.zip"
set CLASSPATH=%CLASSPATH%;"%__CLASSPATH_ROOT_DIR__%\swingall.jar"
cd JDeveloper_Home\HelloGui
jre -cp %CLASSPATH% helloGui.HelloApp</pre>
</li>
[*]Your application appears, with a blank text field and a button labeled "Say
Hello!"
</li>
[*]Click the button.
The text "Hello World!" appears in the text field, in red.
</li>
[*]Close your application.</li>
</ol>

<HR></BLOCKQUOTE>
null

Swing , would like to print hello inside of the frame, how?

i would like to print hello inside of the frame, how can i do that?
import java.awt.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.JComponent;
import java.awt.Toolkit;
import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class Main extends JPanel
implements ActionListener {
JButton button;
public Main() {
super(new BorderLayout());
button = new JButton("Click Me");
button.setPreferredSize(new Dimension(200, 80));
add(button, BorderLayout.CENTER);
button.addActionListener(this);
public void actionPerformed(ActionEvent e) {
System.out.println("hello");
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("welcome");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
JComponent newContentPane = new Main();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}

Recommended lessons in this context: [Using Layout Managers|http://java.sun.com/docs/books/tutorial/uiswing/layout/using.html] and [Painting in AWT and Swing|http://java.sun.com/products/jfc/tsc/articles/painting/]
If the second lesson is a little heavy, look at this light version: [Performing Custom Painting|http://java.sun.com/docs/books/tutorial/uiswing/painting/index.html]
Edited by: Andre_Uhres on Aug 24, 2008 8:34 AM

How to compile a simple "Hello World" program in Java by using Netbeans

Hi all, I am very new to java programming arena. i am trying to learn the most demanding language for the time being. To program, i always use IDE's as it makes programming experience much easier by underline the syntax errors or sometimes showing codehint. However, I am facing some problem when i use Netbeabs to compile a simple "Hello world" program. my problem is whenever i write the code and press compile button, netbeans says "main class not found". Consequently,i am becoming frustated. So, i am here in this forum to get some kind help on How i can compile java programs in Netbeans. Please help me out, otherwise i may lose my enthusiasm in Java. please help me, i m stuck

Go to http://www.netbeans.org/
You should find tutorials there.

New a vmware project (create hello world plug-in project),how to use it as a normal plug-in on orchestrator??

in use:
eclipse sdk (indigo 3.7.2) windows 7 64bit
vcenter orchestrator 5.1 (windows 2008 R2)
vmware - vco- plug-in SDK 5.1
i installed vmware-vco plug-in sdk 5.1 to eclipse 3.7.2,then i created a vmware project(choose create hello world plug-in project)
how to do next??
I export the project as a jar file,rename it as .dar ,and put it to the vmware/infrastructure/orchestrator/app-server/server/vmo/plugins,,
then i upload the .dar file,,it reminds me installed failed....
thanks so much!!!

i don't think you have to rename the jar and create a dar. Once you have build successful you should get the dar file.
Online Documentation - vRealize Orchestrator Plug-in SDK 5.5 - VMware Developer Center

How to create and run J2EE application client for Hello World EJB

Hi
I am new to NWDS EJB deployment.I have created a "Hello World" bean. But how to deploy it and run using a J2EE application client step by step.
Also please help in the steps of the deploy tool.
Thanks in Advance

Hi Ananda
Check this link,
http://help.sap.com/saphelp_nw04/helpdata/en/55/600e64a6793d419b82a3b7d59512a5/content.htm
cheers
Sameer

String a = "Hello"; How to print the address of a;

String a = "Hello";
How to print the address of a;

How about the address a points to?Please try to answer the question in reply 1: why?
You can't get the address to which a variable points (except with JNI, but that again begs the question: why?) Also the address can change at any time as garbage collection moves objects around in memory.

How to print hello world

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