一、抽象工厂模式
1.1 题目：
计算机包含内存（RAM）、CPU等硬件设备，根据下面的“产品等级结构-产品族”示意图，使用抽象工厂模式实现计算机设备创建过程并绘制相应的类图。
1.2类图：
1.3程序代码：
//定义接口CPU
publicinterface CPU {
void create();
}
//定义接口RAM
public interface RAM {
void create();
}
//定义类PcCPU
publicclass PcCPU implements CPU{
publicvoid create() {
System.out.println(" win cpu");
}
}
//定义类PcRAM
publicclass PcRAM implements RAM {
publicvoid create() {
System.out.println("win RAM");
}
}
//定义类MacCPU
publicclass MacCPU implements CPU{
publicvoid create() {
System.out.println("mac CPU");
}
}
//定义类MacRAM
publicclass MacRAM implements RAM{
publicvoid create() {
System.out.println("mac RAM");
}
}
//定义接口ComputerFactory
interfaceComputerFactory {
CPU produceCPU();
RAM produceRAM();
}
//定义类ComputerPartsClient
publicclassComputerPartsClient {
publicstaticvoid main(String args[]) {
ComputerFactory factory;
CPU cpu;
RAM ram;
factory = new PcFactory();
cpu = factory.produceCPU();
cpu.create();
ram = factory.produceRAM();
ram.create();
ComputerFactory factory1;
factory1 = new MacFactory();
cpu = factory1.produceCPU();
cpu.create();
ram = factory1.produceRAM();
ram.create();
}
}
//定义类PcFactory
publicclass PcFactory implements ComputerFactory {
public PcCPU produceCPU() {
System.out.println("请使用PC产品族的CPU");
returnnew PcCPU();
}
public PcRAM produceRAM() {
System.out.println("请使用PC产品族的RAM");
returnnew PcRAM();
}
}
//定义类MacFactory
publicclass MacFactory implements ComputerFactory{
public MacCPU produceCPU() {
System.out.println("请使用Mac产品族的CPU");
returnnew MacCPU();
}
public MacRAM produceRAM() {
System.out.println("请使用Mac产品族的RAM");
returnnew MacRAM();
}
}
1.4运行结果：
二、桥接模式
2.1题目：
如果系统中某对象有三个维度，如某日志
记录
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器既可以支持不同的操作系统（Windows、Linux、Unix），还可以支持多种编程语言（C#、C++、Java），并且可以使用不同的输出方式（File、Console、XML）。请使用桥接模式设计该系统。
2.2类图：
2.3程序代码：
定义类Language
publicabstractclass Language
{
protected Logger log;
publicvoid setLogger(Logger log)
{
this.log = log;
}
publicabstractvoid writeLog();
}
定义类 C
publicclass C extends Language{
publicvoid writeLog(){
System.out.println("用C开发该系统");
this.log.outwork();
}
}
定义类 Java
publicclass Java extends Language {
publicvoid writeLog(){
System.out.println("用JAVA开发该系统");
this.log.outwork();
}
}
定义类CAA
publicclass CAA extends Language{
publicvoid writeLog(){
System.out.println("用C++开发该系统");
this.log.outwork();
}
}
定义类Operation
publicabstractclass Operation {
protected Language language;
publicvoid setLanguage(Language language) {
this.language = language;
}
publicabstractvoid writeLanguageVersion();
}
定义类Windows
publicclass Windows extends Operation{
publicvoid writeLanguageVersion() {
System.out.println("基于Windows操作系统！");
this.language.writeLog();
}
}
定义类Linux
publicclass Linux extends Operation{
publicvoid writeLanguageVersion() {
System.out.println("基于Linux操作系统！");
this.language.writeLog();
}
}
定义类Unix
publicclass Unix extends Operation{
publicvoid writeLanguageVersion() {
System.out.println("基于Unix操作系统！");
this.language.writeLog();
}
}
定义接口Logger
publicinterface Logger {
publicvoid outwork();
}
定义类ConsoleLogger
publicclass ConsoleLogger implements Logger{
publicvoid outwork() {
System.out.println("输出流到控制台日志完成");
}
}
定义类FileLogger
publicclass FileLogger implements Logger{
publicvoid outwork() {
System.out.println("输出流到文件日志完成");
}
}
定义类Client
publicclass Client {
publicstaticvoid main(String[] args) {
Logger filelog = new FileLogger();
Logger consolelog = new ConsoleLogger();
Language java = new Java();
java.setLogger(filelog);
Language caa = new CAA();
caa.setLogger(consolelog);
Language c = new C();
c.setLogger(consolelog);
Operation windows = new Windows();
windows.setLanguage(caa);
windows.writeLanguageVersion();
System.out.println("***************************");
Operation linux = new Linux();
linux.setLanguage(java);
linux.writeLanguageVersion();
System.out.println("***************************");
Operation unix = new Unix();
unix.setLanguage(c);
unix.writeLanguageVersion();
}
}
2.4运行结果：
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