摘要： public static int binarySearch(int[] array, int value){int low = 0;int high = array.length - 1;int middle;while(low <= high){middle = (low + high) / 2;if(array[middle] == value){return middle;}if(value < array[middle]){high = middle - 1;}if(value > array[middle]){low = middle + 1;}}return - 阅读全文

摘要： package com.zhao.day2;public class SingletoTest {public static void main(String[] args) {Singleton singleton = Singleton.getInstance();Singleton singleton2 = Singleton.getInstance();System.out.println(singleton == singleton2);}}class Singleton {private static Singleton singleton = new Singleton(); p 阅读全文