Java考查“==”和equals

/** *  */package com.you.demo;/** * @author YouHaiDong * @date 2015-04-02 */public class Welcome {/** * @param args */public static void main(String[] args) {String str1 = "you";String str2 = "you";String str3 = new String("you");System.out.println(str1==str2);System.out.println(str1==str3);System.out.println(str2.equals(str3));}}

结果为：

truefalsetrue