GavinGuo的博客

//方法1 public class ArrayReverse{ public static void main(String[] args) { //定义数组 int[] arr = {11, 22, 33, 44, 55, 66}; //1、把 arr[0] 和 arr[5] 进行交换 {66, 22, 33, 44, 55, 11} //2、把 arr[1] 和 arr[4] 进行交换 {66, 55, 33, 44, 22, 1