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javaeclipseconfigurationlauncher

How to launch java application without having to specify classpath?

I'm new to java and I'm experimenting with hello world app. I've exported the app from Eclipse into a jar, i DID specify the launch configuration, and when I ran it from command line, I retrieved

Error: Could not find or load main class

That can be fixed by specifying class path like this:

java -cp .:myjar.jar MyMainClass

However, this is really inconvenient. Is there any way, preferably through eclipse, to specify MyMainClass as a metadata inside the jar file so I don't have to write it down every time I launch the app?

Solution

  • yes, you can by writing a manifest file, and then running java -jar Yourjarfile.jar