Anonymous Class in Java
public static void main(String[] args) {

        AnonymousClass a = new AnonymousClass() {
            int whatever = 1;
        };

    System.out.println(a.whatever);
}

public static void main(String[] args) {
    System.out.println(new Object() {
      int whatever = 1;
    }.whatever);
}

public static void main(String[] args) {
    class Local {
      int whatever = 1;
    }
    Local local = new Local();
    System.out.println(local);
}

public static void main(String[] args) {
    class NotAnonymous {
        public int whatever = 1;
    }
    NotAnonymous na = new NotAnonymous();
    System.out.println(na.whatever);
}

private interface AnonymousClass {

}

public static void main(String[] args) {

        AnonymousClass a = new AnonymousClass() {
            int whatever = 1;
        };

    System.out.println(a.whatever); // this won't work
}