设计模式

/** * 内部类单列模式   */public class A {   private A(){};    private static class B{        public static A a = new A();    }    private static A getInstante(){        return B.a;    }}

//------------------------------------------------------工厂模式------------------------------------------------------------------------------

package com.aim.factorytest;/** * 类名称:com.aim.factorytest * 类描述: 多方法工厂（常用） * 创建人： 张国胜 * 创建时间：2016/12/19 16:32 * 修改人： * 修改时间 ： * * @version V1.0 */public class FactoryJava {    public static void main(String[] args){        ICpu iCpu = new CpuFactory().ICpuIcpucreatOther();        iCpu.decs();    }}class Inter implements ICpu{    @Override    public void decs() {        System.out.printf("我是英特尔cup");    }}class Aple implements ICpu{    @Override    public void decs() {        System.out.printf("我是苹果cpu");    }}class Other implements ICpu{    @Override    public void decs() {        System.out.printf("我是乱七八糟杂牌cpu");    }}interface ICpu{    void decs();}class CpuFactory{    public static ICpu IcpuCreatInter(){        return new Inter();    }    public static ICpu IcpucreatApple(){        return new Aple();    }    public static ICpu ICpuIcpucreatOther(){        return new Other();    }}

//--------------------------------------------------观察者模式---------------------------------------------

/** * 类名称:com.aim.factorytest.com.aim.observer * 类描述:   观察者模式，妖艳贱货是被观察者，老王跟老李是观察者 * 被观察者发出一条消息然后观察者做出相应的处理 * 创建人： 张国胜 * 创建时间：2016/12/19 17:02 * 修改人： * 修改时间 ： * * @version V1.0 */public class Obsercer{    public static void main(String[] args){        LaoWan laoWan = new LaoWan();        LaoLi laoLi = new LaoLi();        YaoyanJianHuo yaoyanJianHuo = new YaoyanJianHuo();        //老王，老李都是妖艳贱货的爱慕者，都到她那留了联系方式        yaoyanJianHuo.addPerson(laoWan);        yaoyanJianHuo.addPerson(laoLi);        yaoyanJianHuo.infoMsg();    }}class LaoWan implements Person{    private String name = "老王";    public LaoWan(){    }    @Override    public void getMessage(String msg) {        System.out.printf(name+"接到妖艳贱货的消息："+msg);    }}class YaoyanJianHuo{    private List<Person> list = new ArrayList<>();    public void addPerson(Person person){        list.add(person);    }    public void infoMsg(){        for(Person person:list){            person.getMessage("我老公今晚不在家，谁先到就会很嗨哦\n");        }    }}class LaoLi implements Person{    private String name = "老李";    public LaoLi() {    }    @Override    public void getMessage(String msg) {        System.out.printf(name+"接到妖艳贱货的消息："+msg);    }}interface Person{    void getMessage(String msg);}

//--------------------------------------------------------------适配器模式-----------------------------------------------

public class Test {    public static void main(String[] args) {        Phone phone = new Phone();        VoltageAdapter adapter = new VoltageAdapter();        phone.setAdapter(adapter);        phone.charge();    }}// 手机类class Phone {    public static final int V = 220;// 正常电压220v，是一个常量    private VoltageAdapter adapter;    // 充电    public void charge() {        adapter.changeVoltage();    }    public void setAdapter(VoltageAdapter adapter) {        this.adapter = adapter;    }}// 变压器class VoltageAdapter {    // 改变电压的功能    public void changeVoltage() {        System.out.println("正在充电...");        System.out.println("原始电压：" + Phone.V + "V");        System.out.println("经过变压器转换之后的电压:" + (Phone.V - 200) + "V");    }}

//-------------------------------------------------------------------代理模式-----------------------------------------------------------------------------

public class AdapterModel {
public static void main(String[] args) {
//有人让老李吃苹果
System.out.println("老李吃个苹果吧");
DaiLiPersonLaoWan daiLiPersonLaoWan = new DaiLiPersonLaoWan(new WeiTuoPersonLaoli());
daiLiPersonLaoWan.eat();
}

}
//代理事件
interface DailiEvent{
void eat();//吃东西
} 
//代理人老王
class DaiLiPersonLaoWan implements DailiEvent{
private DailiEvent dailiEvent;
public DaiLiPersonLaoWan(DailiEvent dailiEvent){
this.dailiEvent = dailiEvent;
}
public void eat() {
// TODO Auto-generated method stub
dailiEvent.eat();
System.out.println("代理人老王：吃完了");
}

}
//委托人老李
class WeiTuoPersonLaoli implements DailiEvent{


public void eat() {
// TODO Auto-generated method stub
System.out.println("委托人老李：不想吃，老王你来代我吃了它");
}

}