public class static_method { public static void main(String[] args) { Super2 sup2 = new Sub2(); /** * output: class com.private_field_static_pitfall.test.Sub2 */ System.out.println(sup2.getClass()); /** * output: super2 f()靜態方法不存在多態調用 */ sup2.f(); } } class Super2 { public static void f() { System.out.println("super2 f()"); } } class Sub2 extends Super2 { public static void f() { System.out.println("sub2 f()"); } /** * error:This instance method cannot override the static method from Super2 protected void f() { } */ }