class App {

  /**
   * Program entry point.
   *
   * @param args command line args
   */
  public static void main(String[] args) {<FILL_FUNCTION_BODY>}
}

    // stew is mutable
    var stew = new Stew(1, 2, 3, 4);
    stew.mix();
    stew.taste();
    stew.mix();

    // immutable stew protected with Private Class Data pattern
    var immutableStew = new ImmutableStew(2, 4, 3, 6);
    immutableStew.mix();
  
<no_super_class>