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实验19：中介者模式

package zhongjiezhe;

import java.util.*;

 

public class Group extends Abcharroom{

private Hashtable ms=new Hashtable();

public void register(Member m)

{

if(!ms.contains(m)){

ms.put(m.getname(),m);

m.setroom(this);

}

}

public void sendtext(String a,String b,String c){

Member m=(Member)ms.get(b);

String newm=c;

newm=c.replaceAll("日","*");

m.receivetext(a,newm);

}

public void sendimage(String a,String b,String c){

Member m=(Member)ms.get(b);

if(c.length()>5){

System.out.println("图片过大，发送失败");

}else{

m.receiveimage(a,c);

}

}

}

 

 

 

 

 

package zhontjiezhe;

 

import java.util.*;

 

public class Group extends Abcharroom{

private Hashtable ms=new Hashtable();

public void register(Member m)

{

if(!ms.contains(m)){

ms.put(m.getname(),m);

m.setroom(this);

}

}

public void sendtext(String a,String b,String c){

Member m=(Member)ms.get(b);

String newm=c;

newm=c.replaceAll("日","*");

m.receivetext(a,newm);

}

public void sendimage(String a,String b,String c){

Member m=(Member)ms.get(b);

if(c.length()>5){

System.out.println("图片过大，发送失败");

}else{

m.receiveimage(a,c);

}

}

}

 

 

 

package zhontjiezhe;

 

public abstract class Abcharroom {

public abstract void register(Member m);

public abstract void sendtext(String a,String b,String mess);

public abstract void sendimage(String a,String b,String mess);

}

 

 

 

package zhontjiezhe;

 

 

public class main {

public static void main(String args[]){

Abcharroom r1=new Room();

Member m1,m2,m3;

m1=new Xin("李华");

m2=new Xin("赵芳");

m3=new Xin("王帅");

r1.register(m1);

r1.register(m2);

r1.register(m3);

m1.sendtext("赵芳","：你好啊");

m2.sendtext("李华","：你好");

m2.sendtext("李华","：今天天气不错");

m1.sendtext("赵芳","呵呵");

m3.sendimage("李华","：再见");

m3.sendimage("赵芳","：再见");

 

}

}

 

 

 

package zhontjiezhe;

 

 

public class Pu extends Member{

public Pu(String a){

super(a);

}

public void sendtext(String a,String c){

System.out.println("普通会员发送消息");

room.sendtext(name,a,c);

}

public void sendimage(String a,String c){

System.out.println("普通会员不能发送图片");

}

}

 

 

 

package zhontjiezhe;

 

public class Xin extends Member{

public Xin(String a){

super(a);

}

public void sendtext(String a,String c){

System.out.println("新会员发送消息");

room.sendtext(name,a,c);

}

public void sendimage(String a,String c){

System.out.println("新会员不能发送图片");

room.sendimage(name,a,c);

}

}

 

 

实验 20：备忘录模式

package beiwanglu;

import java.util.ArrayList;

public class Caretaker

{

private Memento memento;

 

private ArrayList mementolist = new ArrayList();

public Memento getMemento(int i) {

return (Memento)mementolist.get(i);

}

public void setMemento(Memento memento) {

mementolist.add(memento);

}

}

 

 

 

package beiwanglu;

 

public class Client

{

public static void main(String a[])

{

UserInfoDTO user=new UserInfoDTO();

Caretaker c=new Caretaker();

int index=0;

user.setAccount("lihua");

user.setPassword("123456");

user.setTelNo("13000000000");

System.out.println("状态一：");

 

user.show();

c.setMemento(user.saveMemento());//保存备忘录

System.out.println("---------------------------");

index++;

user.setPassword("100000");

user.setTelNo("13100000001");

System.out.println("状态二：");

user.show();

c.setMemento(user.saveMemento());//保存备忘录

System.out.println("---------------------------");

index++;

 

user.setPassword("999999");

user.setTelNo("13100009999");

System.out.println("状态三：");

user.show();

 

System.out.println("---------------------------");

 

for(int i=index-1;i>=0;i--)

{

int j=i+1;

user.restoreMemento(c.getMemento(i));//从备忘录中恢复

System.out.println("返回状态："+j);

user.show();

System.out.println("---------------------------");

}

}

}

 

 

 

package beiwanglu;

 

 

 

class Memento

{

private String account;

private String password;

private String telNo;

public Memento()

{

 

}

public Memento(String account,String password,String telNo)

{

this.account=account;

this.password=password;

this.telNo=telNo;

}

public String getAccount()

{

return account;

}

 

public void setAccount(String account)

{

this.account=account;

}

 

public String getPassword()

{

return password;

}

 

public void setPassword(String password)

{

this.password=password;

}

 

public String getTelNo()

{

return telNo;

}

 

public void setTelNo(String telNo)

{

this.telNo=telNo;

}

 

}

 

 

 

package beiwanglu;

 

public class UserInfoDTO

{

private String account;

private String password;

private String telNo;

 

public String getAccount()

{

return account;

}

 

public void setAccount(String account)

{

this.account=account;

}

 

public String getPassword()

{

return password;

}

 

public void setPassword(String password)

{

this.password=password;

}

 

public String getTelNo()

{

return telNo;

}

 

public void setTelNo(String telNo)

{

this.telNo=telNo;

}

 

public Memento saveMemento()

{

return new Memento(account,password,telNo);

}

 

public void restoreMemento(Memento memento)

{

this.account=memento.getAccount();

this.password=memento.getPassword();

this.telNo=memento.getTelNo();

}

 

public void show()

{

System.out.println("Account:" + this.account);

System.out.println("Password:" + this.password);

System.out.println("TelNo:" + this.telNo);

}

}