java用一个for循环输出99乘法表

 

java 

Java代码  

1. public static void main(String[] args) {  
2.         for(int i=1,j=1;i<=9;){  
3.                 System.out.print(j+"*"+i+"="+i*j);  
4.                 if (j==i){  
5.                     i++;  
6.                     j=1;  
7.                     System.out.println();  
8.                 }else{  
9.                     j++;  
10.                     System.out.print("\t");  
11.                 }  
12.         }  
13.     }  

 

Java代码  

1. //以下是两个for实现  
2. for(int i=1;i<=9;i++){  
3.     for(int j=1;j<=i;j++){  
4.         System.out.print(j+"*"+i+"="+i*j);  
5.         if (j<i){  
6.             System.out.print("\t");  
7.         }  
8.     }  
9.     System.out.println();  
10. }
    

     

12. 优化

13. public class nine{
        public static void main(String[] args) {  
                for(int i=1,j=1;j<=9;i++){  
                        System.out.print(i+"*"+j+"="+i*j+"\t");  
                        if (i==j){  
                            i=0;  
                            j++;  
                            System.out.println();  
                        }                   
                    }  
                }  
    
        }