kamada@cygwin% javap -c Hello
Compiled from Hello.java
class Hello extends java.lang.Object {
    Hello();
    public static void main(java.lang.String[]);
}

Method Hello()
   0 aload_0
   1 invokespecial #1 <Method java.lang.Object()>
   4 return

Method void main(java.lang.String[])
   0 getstatic #2 <Field java.io.PrintStream out>
   3 ldc #3 <String "Hello World!">
   5 invokevirtual #4 <Method void println(java.lang.String)>
   8 return