String [][] names={{"tom","jack","mike"},{"zhangsan","lisi","wangwu"}};       // 通过二重循环输出二维数组中元素的值 for (int i = 0; i <names.length; i++) { for (int j = 0; j < names[i].length; j++) {     System.out.println(names[i][j]); } System.out.println(); } } }

为什么我输出的是mike zhangsan lisi wangwu,tom和jack不见了