题解 | 数组倒转

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));
        for(int i = 0;i<arr.length/2;i++){
            int temp = arr[i];
            arr[i] = arr[arr.length-i-1];
            arr[arr.length-i-1] =temp;

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

借助第三个数来达成反转的目标。