java动态读入二位数组

import java.util.Scanner;
/**
 * @version 1.0
 * function:
 * author：阿卜杜赛麦提
 * @date：2022/12/21 16:21
 */
public class TwoDimensionalArray_1 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        int temp=0;
        int arr[][];
        System.out.println("请输入二维数组的两个参数，比如4 5");
        arr =new int[scanner.nextInt()][scanner.nextInt()];
            for (int i = 0; i <arr.length ; i++) {
                for (int j = 0; j <arr[i].length ; j++) {
                    System.out.println("请输入第"+i+"个一位数组的第"+j+"个元素");
                    arr[i][j]=scanner.nextInt();
                }
            }
        for (int i = 0; i <arr.length ; i++) {
            for (int j = 0; j <arr[i].length ; j++) {
                System.out.printf("%d,",arr[i][j]);
            }
            System.out.printf("\n");
        }
        }
    }