1 public class Number {
 2     private int n1;
 3     private int n2;
 4 public Number(int n1,int n2){
 5     
 6     this.n1=n1;
 7     this.n2=n2;
 8     }
 9     
10 public void addition(){
11     p(n1+n2);
12 }
13 public void subtration(){
14     p(n1-n2);
15 }
16 public void multiplication(){
17     p(n1*n2);
18 }
19 public void division(){
20 
21     p(n1/n2);
22 }
23 public void p(int n)
24 {
25 System.out.println(n);
26 }
27 
28 
29 
30 }
31 -------------------------------------------------------------------
32 public class Test {
33 
34     public static void main(String[] args) {
35         // TODO Auto-generated method stub
36         Number n=new Number(4,2);
37         n.addition();
38         n.subtration();
39         n.multiplication();
40         n.division();
41     }
42 
43 }

 

posted on 2018-07-26 10:09  九九九九  阅读(7161)  评论(0编辑  收藏  举报