Demon method.
System.out.println("JDialog --|> " + JDialog.class.getSuperclass());
System.out.println("Integer --|> " + Integer.class.getSuperclass());
System.out.println("Object --|> " + Object.class.getSuperclass());
System.out.println("int --|> " + int.class.getSuperclass());
System.out.println("int[] --|> " + int[].class.getSuperclass());
System.out.println("Set --|> " + Set.class.getSuperclass());
System.out.println("Comparable --|> " + Comparable.class.getSuperclass());