检查int数组是否包含int值

//package com.nowjava;

/**来自 
 时   代     Java  公  众  号 - nowjava.com**/

public class Main {

    public static void main(String[] argv) throws Exception {

        int[] array = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };

        int key = 2;

        System.out.println(contains(array, key));

    }


    public static boolean contains(int[] array, int key) {

        for (int i = 0; i < array.length; i++) {