1 public class Text1 2 { 3     public static void main(String[] args) 4     { 5         System.out.println("求数组中最大数跟最小数：a[][]={{3,2,6},{6,8,2,10},{5},{12,3,23}}"); 6         int[][] a={{3,2,6},{6,8,2,10},{5},{12,3,23}}; 7         int max=a[0][0]; 8         int min=a[0][0]; 9         for(int i=0;i<a.length;i++)10         {11             for(int j=0;j<a[i].length;j++)12             {13                 if(a[i][j]>max)14                 {15                     max=a[i][j];16                 }17                 if(a[i][j]<min)18                 {19                     min=a[i][j];20                 }21             }22         }23         System.out.println("最大数是："+max+"  最小数是"+min);24     }25 }