University 继承与接口

来源：互联网发布：oecd2013年税收数据编辑：程序博客网时间：2024/06/06 03:22

public abstract class Student {        String name;        int    fee;        Student(String name){            this.name=name;        }       abstract void setFee(int  fee);       abstract int getFee();}

public interface Salary { public abstract int getSalary();}

public class Graduate extends Student                    implements Salary{    public int Salary;    Graduate (String name){        super(name);    }    void Graduate (String name){    }    void setFee(int fee){    }    int  getFee(){        return fee;    }    public int getSalary(){        return 1500;    }    boolean isLoan(){        if(Salary<fee){            System.out.println("需要贷款");            return true;        }        else             return false;    }}

public class Teacher implements Salary{    Teacher(String name){    }    public   int  getSalary(){           return 3000;       }}

public class University {  void payOff1(Salary s){  System.out.println("研究生所得工资为："+s.getSalary());    }  void payOff2(Salary m){        System.out.println("老师所得工资为："+m.getSalary());    }  }

public class Test {    public static void main(String[] args) {         Graduate g=new  Graduate("小亮");          g.setFee(1000);        University u=new  University();        u.payOff1(g);        System.out.println("是否需要贷款:"+g.isLoan());        Teacher t=new Teacher("大王");        u.payOff2(t);    }}

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