雨刷程序参考代码1

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类图：

控制杆类：

public class Lever {protected int lever = 1;public Lever(){lever = 1;}public Lever(int lever){this.lever = lever;}public int getLever(){return lever;}public int leverUp(){if(lever < 4)lever++;return lever;}public int leverDown(){if(lever > 1)lever --;return lever;}}

刻度盘类：

public class Dial {protected int dial = 1;public Dial(){dial = 1;}public Dial(int dial){this.dial = dial;}public int getDial(){return dial;}public int dialUp(){if(dial < 3)dial++;return dial;}public int dialDown(){if(dial > 1)dial --;return dial;}}

雨刷类：

public class Brush {protected int speed = 0;public Brush(){speed = 0;}public Brush(int speed){this.speed = speed;}public int getSpeed(){return speed;}public void setSpeed(int speed){this.speed = speed;}}

中介类：

public class Agent {protected Lever l;protected Dial d;protected Brush b;public Agent(){l = new Lever();d = new Dial();b = new Brush();}public int getLever(){return l.getLever();}public int getDial(){return d.getDial();}public void doSpeed(){int speed = 0;switch(getLever()){case 1:speed = 0;break;case 2:switch(getDial()){case 1: speed = 4;break;case 2: speed = 6;break;case 3: speed = 12;break;}break;case 3: speed = 30;break;case 4: speed = 60;break;}b.setSpeed(speed);}public void show(){String slever = "";switch(l.getLever()){case 1: slever = "停止";break;case 2: slever = "间歇";break;case 3: slever = "低速";break;case 4: slever = "高速";break;}System.out.println("控制杆的档位为：" + slever );System.out.println("刻度盘的刻度为：" + d.getDial());System.out.println("雨刷的速度为：" + b.getSpeed());}}

Client类：

import java.util.Scanner;public class Brush_Test {public static void menu(){System.out.println("==================Please choose operation============");System.out.println("\t==========1:Lever Up===========");System.out.println("\t==========2:Lever Down=========");System.out.println("\t==========3:Dial Up============");System.out.println("\t==========4:Dial Down==========");System.out.println("\t==========0:Quit===============");System.out.println("=====================================================");System.out.println("Input the number(0~4):");}public static void main(String[] args){Agent agent = new Agent();Scanner input = new Scanner(System.in);int choice = 0;menu();while(true){choice = input.nextInt();if(choice == 0)break;switch(choice){case 1:if(agent.getLever() >= 4){System.out.println("控制杆已经处于高速档位，不能再升档！");menu();}else{agent.l.leverUp();}break;case 2:if(agent.getLever() <= 1){System.out.println("控制杆已经处于停止档位，不能再降档！");menu();}else{agent.l.leverDown();}break;case 3:if(agent.getDial() >= 3){System.out.println("刻度盘已经处于最高刻度，不能再升档！");menu();}else{agent.d.dialUp();}break;case 4:if(agent.getDial() <= 1){System.out.println("刻度盘已经处于最低刻度，不能再降档！");menu();}else{agent.d.dialUp();}break;}agent.doSpeed();agent.show();}}}

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