大学设计模式课程实用代码大全代码

淘宝店530213

测试类Test

public class Test {

public static void main(String[] args) {

Lift lift=new Lift();

new User(lift).gotoFloor();

lift.operate();

}

}

电梯类Lift

import java.util.*;

public class Lift{

boolean doorState=true;//true开，false 关

int currentFloor=1;

ArrayList holdList=new ArrayList();

LiftState state;

public Lift(){

state=new Hold(this);

}

public void setDoorState(boolean doorstate){ this.doorState=doorstate;

}

public void setState(LiftState state){

this.state=state;

}

public LiftState getState(){

return this.state;

}

public void openDoor(){

setDoorState(true);

System.out.println ("电梯门已开，请抓紧进出！");

}

public void closeDoor(){

setDoorState(false);

System.out.println ("电梯门已关，即将运行！");

}

public void move(int from, int to){

if(from

System.out.println("电梯现在"+from+"楼，即将"+this.state.stateName+"到"+to+"楼");

for(int i=from+1;i

System.out.println("已到达"+i+"楼，不停");

this.currentFloor=i+1;

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

else if(from>to){

System.out.println("电梯现在"+from+"楼，即将"+this.state.stateName+"到"+to+"楼");

for(int i=from-1;i>to;i--){

System.out.println("已到达"+i+"楼，不停");

this.currentFloor=i-1;

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

}

public int getNextFloor(){

return (Integer)(holdList.iterator().next());

}

public void operate(){

this.state.operate();

}

}

状态类LiftState

abstract class LiftState{

protected Lift lift;

String stateName;

public LiftState(LiftState oldstate){

this.lift=oldstate.lift;

}

public LiftState(){}

public void openDoor(){

lift.setDoorState(true);

System.out.println ("电梯门已开，请抓紧进出！");

}

public void closeDoor(){

lift.setDoorState(false);

System.out.println ("电梯门已关，即将运行！");

}

public abstract void operate();

}

使用者类User

import java.io.*;

import java.util.Scanner;

public class User {

Lift lift;

public User(Lift lift){

this.lift=lift;

}

public void gotoFloor(){

Scanner sc = new Scanner(System.in);//获取键盘输入 int nextFloor=sc.nextInt();

lift.holdList.add(nextFloor);

System.out.println("有人要去"+nextFloor+"楼");

}

}

就绪类Hold

import java.util.Currency;

public class Hold extends LiftState{

public Hold(Lift lift){

this.lift=lift;

this.stateName="就绪";

}

public Hold(LiftState state){

super(state);

this.stateName="就绪";

}

@Override

public void operate() {

openDoor();

// TODO Auto-generated method stub

try {

Thread.currentThread().sleep(2000);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

closeDoor();

int nextFloor=this.lift.getNextFloor();

System.out.println("next:"+nextFloor+"----curent:"+this.lif t.currentFloor);

if(nextFloor>this.lift.currentFloor){

this.lift.setState(new RunUp(this));

this.lift.operate();

}

else if(nextFloor

this.lift.setState(new RunDown(this));

this.lift.operate();

}

}

}

下降类

class RunDown extends LiftState{

public RunDown(LiftState state){

super(state);

this.stateName="上升";

}

public void openDoor(){

lift.setDoorState(false);

System.out.println ("上升状态下严禁开门！");

}

public void closeDoor(){

lift.setDoorState(false);

System.out.println ("上升状态下严禁开门！！");

}

@Override

public void operate() {

// TODO Auto-generated method stub

int

nextFloor=(Integer)this.lift.holdList.iterator().next();

this.lift.move(this.lift.currentFloor, nextFloor);

this.lift.setState(new Hold(this));

System.out.println("电梯现在已经到达"+nextFloor+"楼");

this.lift.operate();

}

}

上升类

class RunUp extends LiftState{

public RunUp(LiftState state){

super(state);

this.stateName="上升";

}

public void openDoor(){

lift.setDoorState(false);

System.out.println ("上升状态下严禁开门！");

}

public void closeDoor(){

lift.setDoorState(false);

System.out.println ("上升状态下严禁开门！！");

}

@Override

public void operate() {

// TODO Auto-generated method stub

int

nextFloor=(Integer)this.lift.holdList.iterator().next();

//System.out.println ("下一个："+nextFloor);

this.lift.move(this.lift.currentFloor, nextFloor);

this.lift.setState(new Hold(this));

System.out.println(this.lift.state.stateName);

System.out.println("电梯现在已经到达

"+this.lift.currentFloor+"楼");

this.lift.holdList.remove(0);

this.lift.operate();

}

}

故障类

class Broken extends LiftState{

public Broken(LiftState state){

super(state);

this.stateName="故障";

}

public void openDoor(){

lift.setDoorState(false);

System.out.println ("有故障！暂停使用！");

}

public void closeDoor(){

lift.setDoorState(false);

System.out.println ("超重！！");

}

public void repair(){

this.lift.setState(new Hold(this));

System.out.println ("故障已排除！电梯准备就绪");

}

@Override

public void operate() {

// TODO Auto-generated method stub

System.out.println ("有故障！暂停使用！");

}

}

////////////////////////////////////////////////////////////// 测试类

public class Test {

public static void main(String[] args) {

Car car=new Car();

Walker walker=new Walker();

WalkLight wlight=new WalkLight();

RoadLight rLight=new RoadLight();

wlight.addObserver(walker);

rLight.addObserver(car);

rLight.addObserver(wlight);

rLight.changeColor();

}

}

交通灯类

import java.util.*;

public abstract class TrafficLight {

boolean currentColor=true; //true 绿色，false红色

String lighttype;

ArrayList observerList=new

ArrayList();

public void addObserver(TrafficObserver observer){ if(!observerList.contains(observer))

observerList.add(observer);

}

public abstract void changeColor();

public void hold(long time){

try {

Thread.currentThread().sleep(time);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void yellowHold(long time){

System.out.println (lighttype+(currentColor?"绿":"红")+"灯结束！马上变黄...");

//this.road.paintLightColor(road.getGraphics(),Color.YELLOW ,lighttype);

System.out.println (lighttype+"现在是黄灯！ 2秒后变

"+(currentColor?"红":"绿")+"...");

hold(time);//等2秒

}

public void lightTime(long time){

System.out.println (lighttype+"现在是"+(currentColor?"绿":"红")+"灯！15秒后结束...");

for(int i=15;i>0;i--){//倒计时15秒

System.out.println (lighttype+(currentColor?"绿":"红")+"灯剩余"+i+"秒");

hold(1000);

}

}

public void notice(){

new Thread(){

public void run(){

for(TrafficObserver obs:observerList){

obs.response(currentColor);

//Thread.currentThread().yield();

}

}

}.start();

}

}

交通灯观察者类

public interface TrafficObserver {

public void response(boolean color);

}

道路灯

public class RoadLight extends TrafficLight{

public RoadLight(){

lighttype="机动车道";

}

public void changeColor() {

// TODO Auto-generated method stub

yellowHold(2000);

currentColor=!currentColor;

notice();

lightTime(20000);

}

}

人行道灯

public class WalkLight extends TrafficLight implements TrafficObserver {

public WalkLight(){

lighttype=" 人行道";

}

@Override

public void changeColor() {

// TODO Auto-generated method stub

notice();

lightTime(16000);

}

@Override

public void response(boolean color) {

// TODO Auto-generated method stub

currentColor=!color;

changeColor();

}

}

汽车类

public class Car implements TrafficObserver{ @Override

public void response(boolean color) {

// TODO Auto-generated method stub

if(color)

move();

else

stop();

}

public void stop(){

System.out.println("汽车停");

}

public void move(){

System.out.println("汽车行驶");

}

}

行人类

public class Walker implements TrafficObserver{ @Override

public void response(boolean color) {

// TODO Auto-generated method stub

if(color)

move();

else

stop();

}

public void stop(){

System.out.println("行人停"); }

public void move(){

System.out.println("行人行驶"); }

}