exception in thread 'main' java.lang.NoClassDefFoundError:

Question

The following program is throwing error:

public class HelloWorld {
    public static void main(String args[]) {
        System.out.println(\"Hello World!\");         


        

Answer 1

if your Program.java is in "src/mypkg/subpkg/" directory:

go to "src" dir

Then to compile use "javac mypkg/subpkg/Program.java"

To run use "java mypkg.subpkg.Program.class"