程序输出结果是:Name :不输出;Age :27,ID :1 pay :7000.0 不输出 is working 就睡觉 完整代码见下边 Worker类abstract class Worker { private String name; private int age; private int id; Worker(String name,int age,int id){ this.name = name; this.age = ...
JAVA代码运行成功但是不输出结果
有三处错误
1.abstract void work();{ System.out.println(name + " is working");
}
加了逗号
abstract void work(){ System.out.println(name + " is working");
}
2.去掉abstract修饰符或者去掉body
应改为
void work(){ System.out.println(name + " is working");
}
3.应继承父类的work()方法
void work() { super.show(); System.out.println("就睡觉"); //(方法体,输出"就睡觉!") } }
改为
void work() { super.work(); System.out.println("就睡觉"); //(方法体,输出"就睡觉!") } }
程序输出结果是:
Name :不输出;Age :27,ID :1
pay :7000.0
不输出 is working
就睡觉
完整代码见下边
Worker类abstract class Worker { private String name; private int age; private int id; Worker(String name,int age,int id){ this.name = name; this.age = age; this.id = id; } void show() { System.out.println("Name :" + name + ";Age :"+age +",ID :"+id); } void work(){ System.out.println(name + " is working"); }//由于不同的人员的工作不同 无法确定如何工作 固用抽象类 } Manager类 class Manager extends Worker{ private double pay; Manager(String name,int age,int id,double pay) { super(name,age,id); // (调用父类构造方法) this.pay = pay; } void show() { super.show(); System.out.println("pay :"+pay); } void work() { super.work(); System.out.println("就睡觉"); //(方法体,输出"就睡觉!") } }Test类
class Test
{
public static void main(String []args)
{
//(生成一个工人的具体实例)
Manager m = new Manager("不输出", 27, 1, 7000);
m.show();
m.work();
}
}
祝你成功!
2014-05-08