public class HelloWorld {

    public static void main(String[] args) {

// 定义两行三列的二维数组并赋值

 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-1;i++){

    for(int i2=0;i2<=names[i].length-1;i2++){

        System.out.println(names[i][i2]);

    }

    System.out.println();

}