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Using Eclipse I have created a SWT Hello World program. I was able to run this program from Eclipse and it worked fine.
In the "/home/myname/workspace/HelloWorldSWT" I found two files: HelloWorldSWT.java and HelloWorldSWT.class. I wanted to execute the corresponding program from the command line. First I tried to type "java HelloWorld" and I got the following error message:
Exception in thread "main" java.lang.NoClassDefFoundError: HelloWorld at gnu.java.lang.MainThread.run(libgcj.so.90) Caused by: java.lang.ClassNotFoundException: HelloWorld not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:./], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}} at java.net.URLClassLoader.findClass(libgcj.so.90) at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.90) at java.lang.ClassLoader.loadClass(libgcj.so.90) at java.lang.ClassLoader.loadClass(libgcj.so.90) at gnu.java.lang.MainThread.run(libgcj.so.90) I also tried this "java -cp /home/roman/workspace/ HelloWorld.HelloWorld". As the result I got the following error message:
Exception in thread "main" java.lang.NoClassDefFoundError: loaded class HelloWorld.HelloWorld was in fact named HelloWorld at java.lang.VMClassLoader.defineClass(libgcj.so.90) at java.lang.ClassLoader.defineClass(libgcj.so.90) at java.security.SecureClassLoader.defineClass(libgcj.so.90) at java.net.URLClassLoader.findClass(libgcj.so.90) at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.90) at java.lang.ClassLoader.loadClass(libgcj.so.90) at java.lang.ClassLoader.loadClass(libgcj.so.90) at gnu.java.lang.MainThread.run(libgcj.so.90) Does anybody know what I am doing wrong? Thank you in advance for any help.
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A fully working command-line Terminal inside Eclipse. Just press Ctrl+Alt+T to open a local command prompt (Terminal).
Go to Window > show view > Other. A dialog will show up, type Terminal in the search field, select Terminal and click open. A new empty view will show up in Eclipse. On the top right corner of the view there is a button Labeled "open a Terminal".
Go to the Debug perspective, and select the program you just ran (where it says Terminated, exit value... in the Debug tab) Right click, and choose Properties, there you can see the whole command line command that was launched by eclipse.
You can run this same command in the same directory eclipse did (see in Run Configurations, Arguments, Working directory) and it will work.
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