第四次实训作业-白红宇

第四次实训作业

阅读量：6213 次

发布时间：2019-06-21

本文共 1372 字，大约阅读时间需要 4 分钟。

1 package LHB.inherit; 2  3 public class Electricityfees  4 { 5    private int lastmonth,thismonth;/*上月电表读数，本月电表读数*/ 6    public Electricityfees() 7    { 8         9    }10    public Electricityfees(int lastmonth,int thismonth)11    {12        this.lastmonth=lastmonth;13        this.thismonth=thismonth;14    }15    public int getLastmonth() 16     {17     return lastmonth;18     }19 20    public void setLastmonth(int lastmonth) 21     {22     this.lastmonth = lastmonth;23     }24 25   public int getThismonth() 26    {27     return thismonth;28    }29 30   public void setThismonth(int thismonth) 31    {32     this.thismonth = thismonth;33    }34    public void print()35    {36        System.out.print("上月电表读数为："+lastmonth+"  ");37        System.out.println("这个月电表读数为："+thismonth+"  ");38    }39 }

1 package LHB.inherit; 2  3 public class TestElectricity  4 { 5  6     public static void main(String[] args)  7     {    double x; 8          Electricityfees p=new Electricityfees(); 9          p.setLastmonth(1000);10          p.setThismonth(1200);11          x=p.getThismonth()*1.2;12          System.out.println("本月电费为："+x);13          Electricityfees q=new Electricityfees(1200,1450);14          q.setThismonth(1500);15          x=q.getThismonth()*1.2;16          System.out.println("本月电费为："+x);17     }18     19 }