定义3个final实例变量//判断str1、str2、str3是否执行"宏替换"

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/** * Description: * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>  * <br/>Copyright (C), 2001-2010, Yeeku.H.Lee * <br/>This program is protected by copyright laws. * <br/>Program Name: * <br/>Date: * @author  Yeeku.H.Lee kongyeeku@163.com * @version  1.0 */public class FinalInitTest{//定义3个final实例变量final String str1;final String str2;final String str3 = "Java";//str1、str2分别放在非静态初始化块、构造器中初始化{str1 = "Java";}public FinalInitTest(){str2 = "Java";}//判断str1、str2、str3是否执行"宏替换"public void display(){System.out.println(str1 + str1 == "JavaJava");System.out.println(str2 + str2 == "JavaJava");System.out.println(str3 + str3 == "JavaJava");}public static void main(String[] args) {FinalInitTest fit = new FinalInitTest();fit.display();}}/*falsefalsetrue请按任意键继续. . .*/