Java第一次作业

 1 public class Zuoye1 
 2 {
 3     public static void main(String [] args) {
 4         for(int a = 1;a<=3;a++){
 5             for(int b = 1;b<=(3-a);b++){
 6                 System.out.print(" ");
 7             }
 8             for(int c = 1;c<=2*a-1;c++){
 9                 System.out.print("*");
10             }
11             System.out.print("\n");
12         }
13         for(int a =2;a>=1;a--) {
14             for(int b = 2;b>=a;b--){
15                 System.out.print(" ");
16             }
17             for(int c = 1;c<=2*a-1;c++){
18                 System.out.print("*");
19             }
20             System.out.print("\n");
21         }
22     }
23 }

 

 

1 public class Zuoye1 
2 {
3     public static void main(String [] args) 
4         {
5        
6             System.out.println("计算机1902 14 刘德广");
7         }
8 }

 

 

 

 

1 public class Zuoye1
2     {
3     public static void main(String[] args) {
4         int a = 5;
5         int b = 8;
6         System.out.println(a*a + b*b);
7     }
8     }

 

 

posted @ 2021-03-08 16:50  刘德广  阅读(47)  评论(0编辑  收藏  举报