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Java 具有类层次结构的运算符的instanceof

欢马劈雪

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具有类层次结构的运算符的instanceof

实例源码：

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/**
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 {

}

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编辑于 2020-03-26 09:23:272020-03-26 09:23:27

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