适配器模式实验指导.doc

实验目的：初步了解模式的含义，掌握模式的模型图，弄清模式的适用条件和优点。达到逐步灵活应用的目的。先阅读“阅读资料.doc”。张先生买了一个耳机，其插头为2.5mm规格，但他的电脑声卡的插孔是3.5mm规格。张先生需要买一个如图1所示的2.5mm转3.5mm耳机转接头。转接头的插孔为2.5mm规格，插头为3.5mm规格。图1 耳机小转大接头可用词语注释：插座socket插头plug转接头（适配器）adapter耳机earphone声卡sound card一、编写程序模拟耳机直接插接电脑声卡失败Application.java文件内容。public class Applicationpublic static void main(String args) Plug plug35 = new Plug35();/3.5mm规格的插头Earphone ep = new Earphone();/耳机ep.Setplug(plug35);/耳机安装3.5mm规格的插头Socket sokcet35 = new Socket35();/3.5mm规格的插座Soundcard s = new Soundcard()/声卡s.SetSocket(socket35);/声卡安装3.5mm规格的插座Matching(ep,s);/耳机和声卡匹配成功Plug plug25 = new Plug25();/2.5mm规格的插头ep.Setplug(plug25);/耳机安装2.5mm规格的插头Matching(ep,s);/耳机和声卡匹配失败private static void Matching(Earphone e,Soundcard s)if (e.GetPlug().Matching(s.GetSocket() System.out.println(耳机和声卡匹配成功！);else System.out.println(耳机和声卡匹配失败！);类图设计如图2所示。图2 2.5mm耳机接头匹配3.5mm声卡二、编写程序模拟耳机通过转接头插接电脑声卡成功测试驱动程序Application.java文件内容。public class Applicationpublic static void main(String args) Plug plug25 = new Plug25();/2.5mm规格的插头Earphone ep = new Earphone();/耳机ep.Setplug(plug25);/耳机安装2.5mm规格的插头Socket socket35 = new Socket35();/3.5mm规格的插座Soundcard s = new Soundcard();/声卡s.Setsocket(socket35);/声卡安装3.5mm规格的插座Matching(ep,s);/耳机和声卡匹配失败Adapter a = new Adapter();Plug plug35 = new Plug35();/产生一个3.5mm的插头Socket socket25 = new Socket25();/产生一个2.5mm的插座a.Assemble(plug35,socket25);/产生一个2.5mm转2.5mm的适配器Matching(ep,a,s);/耳机和声卡通过适配器匹配成功private static void Matching(Earphone e,Adapter a,Soundcard s)boolean eaok = false;boolean asok = false;eaok = e.Getplug().Matching(a.Getsocket();/声卡和适配器匹配结果asok = a.Getplug().Matching(s.Getsocket();/适配器和声卡匹配结果if (eaok & asok) System.out.println(耳机和声卡通过适配器匹配成功！);else System.out.println(耳机和声卡通过适配器匹配失败！);private static void Matching(Earphone e,Soundcard s)if (e.Getplug().Matching(s.Getsocket() System.out.println(耳机和声卡匹配成功！);else System.out.pri