class Empty {
}

interface Listener {
  public void execute();
}

public
class
Test {
  class Inner {
    void go() {
      use(new Listener() {
        public void execute() {
          System.out.println("In Inner");
        }
      });
    }
    String s1 = "class A";
    String s2 = "new Listener() { }";
    /* class B */
    /* new Listener() { } */
  }

  public static void main(String[] args) {
    new Test().run();
  }

  void run() {
    use(new Listener() {
      public void execute() {
        use(new Listener( ) {
          public void execute() {
            System.out.println("Inside execute()");
          }
        });
      }
    });

    new Inner().go();
  }

  void use(Listener l) {
    l.execute();
  }
}

class Private {
  void run() {
    new Listener() {
      public void execute() {
      }
    };
  }
}