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javaexit-code

Use of System.exit(0)

public class WrapperTest {
    static {
        print(10);
    }

    static void print(int x) {
        System.out.println(x);
        System.exit(0);
    }
}

In the above code System.exit(0) is used to stop the program. What argument does that method take? Why do we gave it as 0. Can anyone explain the concept?

Solution

  • From the JAVA Documentation:

    The argument serves as a status code; by convention, a nonzero status code indicates abnormal termination.

    And Wikipedia adds additional information.