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课堂练习的Java文件

慎壹 2022-03-27 阅读 69
java

重写和继承样例

ManKind 类方法以及 Child 继承:

public class ManKind {
    int gender;
    int salary;

    void People(int gender){
        if(gender==1)
            System.out.println("1代表渣男");
        else if(gender==0)
            System.out.println("0代表渣女");
        else
            System.out.println("既不是1,又不是0,你好奇怪噢!");
    }
    void employee(int x){
        if(x>=100)
            System.out.println("工资大于100W啦,I am your BOSS!!");
        else 
            System.out.println("我没有那么多钱,我是被拐的非洲黑奴");
    }
}
//继承
class Child extends ManKind{
    int age;
    void printage(int x){
        age=x;
        System.out.println("悄悄告诉你,我已经"+age+"岁了呢~");
    }
    void employee(){    //重写:在子类中重新定义父类中已有的方法
        System.out.println("小孩子就是应该以读书为重!");
    }
}

主方法

public class Today {
    public static void main(String[] args) {
        ManKind peo=new ManKind();
        peo.People(1);
        peo.People(0);
        peo.People(2);
        peo.employee(50);
        peo.employee(100);
        System.out.println("下面是子类调用");
        Child cd=new Child();
        cd.People(1);
        cd.People(0);
        cd.employee(101);
        cd.employee();
        cd.printage(56);
    }
}
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