题解 | #数组倒转#5.7

import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        int[] arr = new int[6];
        Scanner scanner = new Scanner(System.in);
        for (int i = 0; i < arr.length; i++) {
            arr[i] = scanner.nextInt();
        }
        System.out.println(Arrays.toString(arr));
        //用到了之前的 不创建第三个变量 调换值 也可以用第三变量
        //write your code here......
        for (int i = 0; i < arr.length/2; i++) {
            arr[i]=(arr[i]+arr[arr.length-i-1])-(arr[arr.length-i-1]=arr[i]);
        }

        System.out.println(Arrays.toString(arr));
    }
}