数组元素顺序颠倒

Posted 2020-10-22 think的海角

package com.test;

import java.util.Arrays;

/**
 * 有数组a[n]，用java代码将数组元素顺序颠倒
 * @author 
 *
 * 2018年1月26日下午8:29:24
 */
public class ArrayReverse {
	public static void main(String[] args) {
		int[] arr = {1,5,2,0,7,73,23};
		for (int i = 0; i < arr.length / 2; i++) {
			int tmp = arr[i];
			arr[i] = arr[arr.length - 1 - i];
			arr[arr.length - 1 - i] = tmp;
		}
		System.out.println(Arrays.toString(arr));
	}
}