package com.itheima;
import java.util.Random;
public class shuzu07 {
public static void main(String[] args) {
int [][] arr={{1,2,3},{4,5,6},{7,8,9}};
Random a=new Random();
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr[i].length; j++) {
int x= a.nextInt(arr.length);
int y= a.nextInt(arr[x].length);
int temp =arr[i][j];
arr[i][j]=arr[x][y];
arr[x][y]=temp;
}
}
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr[i].length; j++) {
System.out.print(arr[i][j]+" ");
}
System.out.println();
}
}
}
执行结果
6 1 7
9 3 2
4 8 5
Process finished with exit code 0
