package ;import java.util.Arrays;/*** @author Summer* 动态二维数组赋值及for循环遍历和toString遍历*/public class Tesrt04 {public static void main(String[] args) {int[][] arr = new int[2][2];arr[0][0] = 100; arr[0][1] = 1; arr[1][0] = 10; arr[1][1] = 1000; 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();}for (int[] is : arr) {for (int i : is) {System.out.print(i+" ");}System.out.println();}for (int i = 0; i < arr.length; i++) {System.out.println(Arrays.toString(arr[i]));}}}
