具有类层次结构的运算符的instanceof

/**
时 代      J a v a   公   众 号 - nowjava.com 提供 
**/

class InstanceofDemo {

    public static void main(String[] args) {


        Parent obj1 = new Parent();

        Parent obj2 = new Child();


        System.out.println("obj1 instanceof Parent: "

                + (obj1 instanceof Parent));

        System.out.println("obj1 instanceof Child: "

                + (obj1 instanceof Child));

        System.out.println("obj1 instanceof MyInterface: "

                + (obj1 instanceof MyInterface));

        System.out.println("obj2 instanceof Parent: "

                + (obj2 instanceof Parent));

        System.out.println("obj2 instanceof Child: "

                + (obj2 instanceof Child));

        System.out.println("obj2 instanceof MyInterface: "// 来自 n o w j a v a . c o m - 时  代  Java

                + (obj2 instanceof MyInterface));

    }

}


class Parent {

}


class Child extends Parent implements MyInterface {

}


interface MyInterface {

}