Trying to run Java programs I wrote, need help~

I wrote some very simple programs for image viewing with flickrj and other external libraries. But I don't know what would I do to make it run on other people's computers ( only with JRE installed, I can run it only because I have eclipse, can't even get it to work under windows command prompt). I have tried exe4j trial version, but it was really a mess. Please give me some advices~~~
Thank you very much~

Thx so much, i got it to work...is it possible for me
to export it to a .jar file? and just double click it
will run?Yes. Consult the Java Tutorial on using jars, and especially learn about the attribute "Main-Class" in manifest files. I also suggest you read the jar documentation here:
http://java.sun.com/j2se/1.5.0/docs/guide/jar/index.html
and how do you suppress all console output?
TIAEither don't create it, or redirect it. Some operating systems provide a null device that can be used as a destination that acts as a data sink that will "eat" the data.
See the setOut and setErr methods in java.lang.System class.

Similar Messages

Trying to run java program

I am trying to run a program called j perf, a graphical front end for iperf a network measurement tool.
when i type java jperf i get this error message
Exception in thread "main" java.lang.NoClassDefFoundError
looking for assistance
thanks

Well,
I assume jperf is the name of you class that has the main method in it. If not then this is one problem.
If you application uses anything other than classes out of the standard Java rt.jar file then you need to specify the additional jar files in the classpath
java -classpath myPackage.jar jperf
P.S. If you main class is called jperf maybe you should think of a better name with a bit of capitalisation.
IPerfGraphicalFrontEndMain maybe? OK it is more typing but using names that say what they are helps a lot in the end.

CALL A JAVA PROGRAM FROM ABAP -- NEED HELP

Hi all,
Can somebody tell me how to call a java xml code from an ABAP program? First let me know if at all, is it possible to call a java program from SAP that is from an ABAP executable progam?
Please suggest me in this. All your inputs in this is valuable to me and highly appreciated.
Thanks in advance,
Vaishnavi Varadarajan

Hi,
Previous explanation i gave is not correct.
ABAP web services expose the function modules outside R/3, so that other technologies like Java can consume that webservice and read the data in R/3 using the function module.
For your requirement, create a Java web service to read the XML. Consume this webservice in ABAP. This way you can read the XML from ABAP.
Regards
Srikanth KV.

Vim and Eclim (Java): Run Java program in embedded terminal window

Hello all,
I'm trying to create a decent Vim setup for Java programming. I've installed Eclim, and it works alright. However, one annoyance I have is the way that Eclim runs Java programs. When run (via the :Java command in Vim), a Java program runs in a new shell instance pretty independent from Vim, and then when the program terminates (and Enter is pressed), the output is put into a new buffer at the bottom of the Vim window with the output.
The problem with this is that I must press Enter to go back to Vim after the program terminates, and then the output buffer is automatically selected even though I most likely do not care to copy any of the output.
So, this is what I would like to happen:
- I run my Java program somehow (doesn't have to be with :Java)
- A buffer containing the running program in a shell is put on the screen (if not already there)
- The program terminates, and the focus did not change to the output buffer
At the very least, I want the focus to not change to the output buffer after the program is done running.
Any ways to at least somewhat accomplish what I'm trying to get at?

Trent wrote:
Yeah? I had AP CS when they first introduced the GridWorld case study. I hope you get more out of the class than I did.
I have never used Java except for that and my first CS class at university. I eventually realized that software (as a job) wasn't for me and took a route closer to EE. I still fight to avoid being called a programmer though
I like the idea of programming for a job, not necessarily "software development", something computer science-y sound good to me.
But anyway, to end on an on-topic note, I embedded gvim inside Eclipse as described here.

Running java program at windows startup

I need to run java program at startup and then it will continue to run in its own thread.
Any body having idea how to do that programmatically?
Zeeshan

This is one option but this is not feasible in my scenario as this application will be running over a network which involves hundreds of computer so is there any way to do it programatically?
I mean if I can load java class file through an exe file then I can load my class file in the startup using C++.
Any Suggestions.
thanks for the help
regards,
Zeeshan

Can't run java program with GUI

My computer can run java program properly.
However, for those program with GUI (using swing),
my computer is unable to display the GUI.
What's wrong with it? Is there any PATH I need to set before running GUI program?
Thanks
icedgold

Cut, copy, paste then compile and run this;-import java.awt.*;
import javax.swing.*;
public class MyJFrame extends JFrame {
public MyJFrame() {
      super("My first JFrame");
      Container c = getContentPane();
      JPanel panel = new JPanel();
      panel.setBackground(Color.white);// (new Color(255, 255, 255));
      JLabel jl = new JLabel("Yes it works");
      panel.add(jl);
      c.add(panel);
public static void main(String[] args) {
    MyJFrame frame = new MyJFrame();
    frame.setSize(180,120);
    frame.setLocation(200, 300);
    frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
    frame.setVisible(true);
}

Compiling and running Java programs on my laptop

I have just bought a new laptop but I can't run and compile Java programs using the javac filename.java command in the command prompt. I know I have to download something but I am not sure what link. I would be grateful if somebody could send me on a URL. My O/S is Windows XP. Can somebody advise please?

If you just want to run java applications, you just need the JRE: J2SE 5.0 JRE
If you want to compile java source code, you need the JDK: J2SE 5.0 JDK
It includes also the JRE. Recommended is also the J2SE 5.0 Documentation that contains the javadoc API that describes all the Java classes.
To start develeoping I recommend the Java Tutorial: http://java.sun.com/docs/books/tutorial/

Run java program in background

I want to run a java program in background in windowsXP...can anyone help please......can anyone suggest an easy software for running java program as windows service...i tried one but without any success

How many of the links here have you tried while you were waiting for an answer?
http://www.google.com/search?q=running+java+program+as+windows+service
(Note that the query is a direct copy/paste from your post.)

Can't Run Java Programs -- java.lang.NoClassDefFoundError Error

I am running 10.4.11. For some reason I can no longer run Java programs. (I could in the past)
For example. I create a simple Hello World program as follows and save it as Hello.java:
class HelloWorld
public static void main (String args[])
System.out.println("Hello, world!");
Then I compile it:
Javac Hello.java
Then I try to run it:
java Hello
But I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: Hello
I think it must be a CLASSPATH problem but normally you do not need to worry about ClassPATH. Apple sets it up for you out of the box.
What is wrong?

I totally forgot that the class name should be the same as the filename.
After I renamed the file to HelloWorld.java and recompiled, I could run "java HelloWorld"
Rob

Run java program overnight

Hey,
I left my office yesterday evening leaving my macbook on
while it was running a java program that it's supposed to requires between 2 and 3 hrs.
This morning not only the program was still running (hard to believe it takes more than 12 hrs!)
but when I typed in the shell the 'ps -all' command
it says the program has been running for around 30 mins, and now it's still running!
Is it possible that with certain settings the mac stops its processes after a while?
What should I check?
Thanks for helping, I'm actually a newbie in the mac world:)
g

How many of the links here have you tried while you were waiting for an answer?
http://www.google.com/search?q=running+java+program+as+windows+service
(Note that the query is a direct copy/paste from your post.)

How to Set up the variables and others to compile and Run Java Programs

Hello,
I have just downloaded the jdk1.6.0_07 and jre1.6.0_07 and installed it in C:\Program files\Java in my Windows XP ,So please tell me how to sett up the enviroment variables etc to compile and run Java Programs from Command Prompt.
thanks

To set the PATH permanently, add the full path of the jdk1.6.0_<version>\bin directory to the PATH variable. Typically this full path looks something like C:\Program Files\Java\jdk1.6.0_<version>\bin. Set the PATH as follows on Microsoft Windows:
1. Click Start > Control Panel > System on Windows XP or Start > Settings > Control Panel > System on Windows 2000.
2. Click Advanced > Environment Variables.
3. Add the location of bin folder of JDK installation for PATH in User Variables and System Variables. A typical value for PATH is:
C:\Program Files\Java\jdk1.6.0_<version>\bin

How to run java program from website?

Hello
I'd like to know how to run java program from my web page.
I'd like to push some button in this web page so java program that would be on my server
would pop-up. Can it be done automaticaly upon running this web site? (without any buttons - I just enter website and program pops up).
Cheers

I rather thought about RMI. But I could try servlets. So how it would look like?.
I would make http request in browser (enter address) and program would show up in its window?. And I would not have to change anything in my program?. This program would run then on both boxes?. One remotely and one not?.
But I would have to learn some basics, I've never worked with servlets. Could you suggest some good sites about it?. With ready examples so I could tweak them to my purpose.
Message was edited by:
macmacmac

Compile and run java programs in different directroy

Hi,
I often encounter many problems when I run java programs in the different directories. Like
javac -d dir_name a.java
java -cp dir_name a
Something wired often happens, such as, there is not a.java file in some directory, but javac -d dir_name a.java can still work or "java -cp dir_name a" often doesn't work. Moreover, file_name.jar is also a tough problem and solving compiling problems is often time-consuming.
So I hope to read something about how to compile and run java programs in different directory properly.
Could you pleae give me a detailed description for that or recommend a book or website?
Thanks a lot.

Can you post a small amount of code that does not work, including the directory structure, and the error messages? Some one here can likely explain the problem.

Hw do u run java programs in xcode 4?

hw do u run java programs in xcode 4?
pls tell the detailed steps fr running a java program

Here is a document dated 2009: Introduction to Jar Bundler User Guide - Apple Developer
...I don't think JB is included now.

I want to run java program on windows environment as background process

Hi all
I want to run java program on windows environment as background processSo command prompt return after executing java command and program on background In Linux we can do this easily �but I do not how to do this in windows
for example look this programe
import java.io.*;
import java.util.*;
public class TestClass {
     class ravi extends Thread{
          public void run(){
               try {
                    String target_file = "ravind.txt";
                    File targetfile = new File(target_file);
                    PrintWriter writer = new PrintWriter(new FileWriter(targetfile)) ;
               for (int i =0 ; i < 100 ;i++ ){
                    Thread.sleep(10000);
                    writer.println(" ravindra shukla ");
          } catch (Exception e) {
                         e.printStackTrace();
     public static void main(String[] args) {
          TestClass test1 = new TestClass();
          TestClass.ravi r1 = test1.new ravi();
          r1.start();
System.out.println(" return from main ");
first i compile this
javac TestClass.java
then i run this by using this command
java TestClass
but becouse i put sleep on threads run function so it takes to much time to get return on command promt .... i want to run this programe as background process so command promt return as soon as i execute java command

Thanks dude
This solution �start java TestClass� works fine �. But it does not solve my problem
It opens another black window and that black window persist till the life time of my program
Is it possible application run on complete background without opening another black window �as in Linux

Trying to run Java programs I wrote, need help~

Similar Messages

Maybe you are looking for