在给定的汽车手动风挡玻璃雨刷程序的基础上,对程序进行重构(Refactoring),使得程序可以对功能进行扩展。
附件1: 附件1.pdf
作业指导书:作业指导书V1.0.pdf
输入共2行,第一行为一个整型数字,取值范围为[1,2],其中1代表表1所描述的雨刷系统,2代表表2所描述的雨刷系统;第二行为若干个用一个或多个空格分开且以数字0结束的整型数字,取值范围为[1,4],其中1代表控制杆升档操作、2代表控制杆降档操作、3代表刻度盘升刻度操作、4代表刻度盘降刻度操作、0代表操作结束(输入时只要遇到0即认为输入结束)。
程序的输出行数根据每一次对控制杆/刻度盘操作次数而定,每一次对控制杆/刻度盘进行了操作,则输出一行数据。格式为:操作类型/控制杆当前档位/刻度盘当前刻度/雨刷当前速度 其中,操作类型共四种,分别为Lever up、Lever down、Dial up、Dial down;控制杆当前档位显示中文内容,例如停止、间歇、低速、高速、超高速(表2);刻度盘当前刻度显示为数值,例如1、2、3、4、5(4、5见表2);雨刷当前速度显示为整型数值。
在这里给出一组输入。例如:
1
1 1 1 2 3 2 4 3 3 1 2 0
在这里给出相应的输出。例如:
Lever up/间歇/1/4
Lever up/低速/1/30
Lever up/高速/1/60
Lever down/低速/1/30
Dial up/低速/2/30
Lever down/间歇/2/6
Dial down/间歇/1/4
Dial up/间歇/2/6
Dial up/间歇/3/12
Lever up/低速/3/30
Lever down/间歇/3/12
package jyc.test;
import java.util.Scanner;
public class Main {
public static void main(String[] args){
int choice = 0;
int pattern;
Scanner input = new Scanner(System.in);
pattern=input.nextInt();
if(!(pattern==1||pattern==2)) {
System.out.println("Wrong Format");
return;
}
choice = input.nextInt();
Lever lever = new Lever(1);
Dial dial = new Dial(1);
Brush brush = new Brush(0);
Agent agent = new Agent(lever,dial,brush);
while(choice != 0){
if(pattern==1){
switch(choice){
case 1://Lever up
System.out.print("Lever up");
agent.getLever().leverUp();
break;
case 2://Lever down
System.out.print("Lever down");
agent.getLever().leverDown();
break;
case 3://Dial up
System.out.print("Dial up");
agent.getDial().dialUp();
break;
case 4://Dial down
System.out.print("Dial down");
agent.getDial().dialDown();
break;
case 0://Terminate
System.exit(0);
}
agent.dealSpeed2();//Get brush’s speed
int curspeed = agent.getBrush().getSpeed();
if (curspeed == 0)
System.out.println("/停止/" + agent.getDial().getPos() + "/" + curspeed);
else if (curspeed == 4 || curspeed == 12 || curspeed == 6)
System.out.println("/间歇/" + agent.getDial().getPos() + "/" + curspeed);
else if (curspeed == 30)
System.out.println("/低速/" + agent.getDial().getPos() + "/" + curspeed);
else if (curspeed == 60)
System.out.println("/高速/" + agent.getDial().getPos() + "/" + curspeed);
}
else if(pattern==2){
switch(choice){
case 1://Lever up
System.out.print("Lever up");
agent.getLever().leverUp2();
break;
case 2://Lever down
System.out.print("Lever down");
agent.getLever().leverDown();
break;
case 3://Dial up
System.out.print("Dial up");
agent.getDial().dialUp2();
break;
case 4://Dial down
System.out.print("Dial down");
agent.getDial().dialDown();
break;
case 0://Terminate
System.exit(0);
}
agent.dealSpeed2();//Get brush’s speed
int curspeed = agent.getBrush().getSpeed();
if (curspeed == 0)
System.out.println("/停止/" + agent.getDial().getPos() + "/" + curspeed);
else if (curspeed==20 || curspeed==15||curspeed == 4 || curspeed == 12 || curspeed == 6)
System.out.println("/间歇/" + agent.getDial().getPos() + "/" + curspeed);
else if (curspeed == 30)
System.out.println("/低速/" + agent.getDial().getPos() + "/" + curspeed);
else if (curspeed == 60)
System.out.println("/高速/" + agent.getDial().getPos() + "/" + curspeed);
else if (curspeed == 90)
System.out.println("/超高速/" + agent.getDial().getPos() + "/" + curspeed);
}
choice = input.nextInt();
}
}
}
class Lever {
private int pos;//档位
public Lever(){
}
public Lever(int pos){
this.pos = pos;
}
public int getPos() {
return pos;
}
//升档
public void leverUp() {
if(this.pos < 4){
this.pos ++;
}
}
//升档二
public void leverUp2() {
if(this.pos < 5){
this.pos ++;
}
}
//降档
public void leverDown(){
if(this.pos > 1){
this.pos --;
}
}
}
class Dial {
private int pos;//刻度
public Dial(){
}
public Dial(int pos){
this.pos = pos;
}
public int getPos() {
return pos;
}
//升刻度
public void dialUp() {
if(this.pos < 3){
this.pos ++;
}
}
//升刻度二
public void dialUp2() {
if(this.pos < 5){
this.pos ++;
}
}
//降刻度
public void dialDown(){
if(this.pos > 1){
this.pos --;
}
}
}
class Brush {
private int speed;
public Brush(){
}
public Brush(int speed){
this.speed = speed;
}
public int getSpeed() {
return speed;
}
public void setSpeed(int speed) {
this.speed = speed;
}
}
//为了减小实体类耦合性,采用中介模式,设计Agent代理类
class Agent {
//聚合型类设计
private Lever lever;
private Dial dial;
private Brush brush;
public Agent(){
}
public Agent(Lever lever,Dial dial,Brush brush){
this.lever = lever;
this.dial = dial;
this.brush = brush;
}
public Lever getLever() {
return lever;
}
public void setLever(Lever lever) {
this.lever = lever;
}
public Dial getDial() {
return dial;
}
public void setDial(Dial dial) {
this.dial = dial;
}
public Brush getBrush() {
return brush;
}
public void setBrush(Brush brush) {
this.brush = brush;
}
//主要业务逻辑:根据控制杆档位、刻度盘刻度计算雨刷摆动速度
public void dealSpeed2(){
int speed2 = 0;
switch(this.lever.getPos()){
case 1://停止
speed2 = 0;break;
case 2://间歇
switch(this.dial.getPos()){
case 1://刻度1
speed2 = 4;break;
case 2://刻度2
speed2 = 6;break;
case 3://刻度3
speed2 = 12;break;
case 4://刻度3
speed2 = 15;break;
case 5://刻度3
speed2 = 20;break;
}
break;
case 3://低速
speed2 = 30;break;
case 4://高速
speed2 = 60;break;
case 5://刻度3
speed2 = 90;break;
}
this.brush.setSpeed(speed2);
}
}
此题做了3个半小时,我自己都吐了,一直有两个点不过,最后看作业指导书才发现选择模式一二要判断合法性。。。可是题上没说呀,害,白白让我浪费这么多时间,无语子。。。