二维数组

package three;
import java.util.Random;
import java.util.Scanner;

public class threetwo {
    public static void main(String[] args) {
        int cols，row;int i,j;
        int a[][];
        int max;
        Random rand = new Random();
        Scanner sc = new Scanner(System.in);
        System.out.print("请输入二维数组的行数：");
        row=sc.nextInt();
        System.out.print("请输入二维数组的列数：");
        cols=sc.nextInt();
        a=new int[row][cols];
        for(int c=0;c<row;c++) {
            System.out.println("请输入第"+(c+1)+"行的"+cols+"个数字:");
            for(int c1=0;c1<cols;c1++) {
                a[c][c1]=sc.nextInt();
            }
        }
        
      

}