1 package com.wh.Object3;
2
3 public class this_Demo {
4 private String name;
5 private double price;
6 private int num;
7
8 public String getName() {
9 return name;
10 }
11
12 public void setName(String name) {
13 this.name = name;
14 }
15
16 public double getPrice() {
17 return price;
18 }
19
20 public void setPrice(double price) {
21 this.price = price;
22 }
23
24 public int getNum() {
25 return num;
26 }
27
28 public void setNum(int num) {
29 this.num = num;
30 }
31
32 public this_Demo() {
33 //this关键字的构造方法的使用
34 this("可乐", 2.5, 1001);
35 }
36
37 public this_Demo(String name, double price, int num) {
38 this.name = name;
39 this.price = price;
40 this.num = num;
41 }
42
43 public static void main(String[] args) {
44 /*
45 * this("","",""); 代表一个构造方法
46 */
47 this_Demo th=new this_Demo();
48 System.out.println(th.getName());
49 System.out.println(th.getPrice());
50 System.out.println(th.getNum());
51 }
52 }
