import java.util.Arrays; public class NewArraysDemo { public static void main(String args[]) { int[][] arr1 = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; int[][] arr2 = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; int[][] arr3 = {{0, 1, 3}, {4, 6, 4}, {7, 8, 9}}; System.out.println("arr1 內容等於 arr2 ? " + Arrays.deepEquals(arr1, arr2)); System.out.println("arr1 內容等於 arr3 ? " + Arrays.deepEquals(arr1, arr3)); System.out.println("arr1 deepToString()\n\t" + Arrays.deepToString(arr1)); } }