2

How do I run a jar file?

I tried this : java iCChecker.jar

but I got next trace :

Exception in thread "main" java.lang.NoClassDefFoundError: iCChecker/jar
Caused by: java.lang.ClassNotFoundException: iCChecker.jar
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: iCChecker.jar.  Program will exit.

So, what am I doing wrong? And how to start this jar file?

5

To run a jar file, pass the -jar option to java. Otherwise it assumes the given argument is the name of a class, not the name of a jar file (specifically in this case it's looking for a class named jar in a the package iCChecker).

So java -jar iCChecker.jar will work.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.