二维数组行列互换

 1 public class Hanshu {
 2     public static void sun(int a[][]) {
 3         for(int i=0;i<a.length;i++) {
 4             for(int j=0;j<a[i].length;j++) {
 5                 System.out.print(a[i][j]+" ");
 6             }
 7             System.out.println();
 8         }
 9     }
10     public static void main(String []args) {
11         int i,j;
12         int [][]a= new int [][]{{2,3,4},{5,6,7},{1,4,5},{2,4,5}};
13         System.out.println("行列互换之前");
14         sun(a);
15         int a1[][]=new int[a[0].length][a.length];
16         for(i=0;i<a[0].length;i++) {
17             for(j=0;j<a.length;j++) {
18                 a1[i][j]=a[j][i];
19             }
20         }
21         System.out.println("行列互换之后");
22         sun(a1);
23     }
24 }