|
发表于 2021-6-14 21:02:53
|
显示全部楼层
首先两个大字:莫慌
你题目的需求,我都一对一的写在注释中了,请参考~
代码如下:
- package com.ch11;
- //圆环类Ruanhuan 不应该是Yuanhuan么?
- public class Ruanhuan {
- private double nR; //内半径nR
- private double wR; //外半径wR
-
- public double getnR() {
- return nR;
- }
- public void setnR(double nR) {
- this.nR = nR;
- }
- public double getwR() {
- return wR;
- }
- public void setwR(double wR) {
- this.wR = wR;
- }
-
- @Override
- public String toString() {
- return "Ruanhuan(圆环) [nR(内半径)=" + nR + ", wR(外半径)=" + wR + "]";
- }
- //构造方法Ruanhuan(double nr,double wr)
- public Ruanhuan(double nr,double wr){
- this.nR = nr;
- this.wR = wr;
- }
- public static void main(String[] args) {
- // /在main()方法中构造圆环对象
- Ruanhuan rh = new Ruanhuan(3, 6);
- //并显示输出getNr()、getWr()、toString()的调用结果
- System.out.println("内环是:"+rh.getnR());
- System.out.println("外环是:"+rh.getwR());
- System.out.println(rh.toString());
- }
- }
复制代码
运行结果如下:
|
|