（一）理解java的三大特性之封装

理解java的三大特性之封装

转载：https://blog.csdn.net/weixin_37848710/article/details/77981761

测试：

public class runEncapsulation {
    public static void main(String[] args) {
        Husband husband= new Husband();
        Wife wife =new Wife();
        husband.setAge(140);
        //wife.setName("Q");
        System.out.println("husband age is: "+ husband.getAge());
        System.out.println("wife name is: "+ wife.getName());
    }
}

结果显示：

input error!
husband age is: 0
wife name is: null