Refactoring is a refactoring procedure based on the given manual windshield wiper program for automobiles, which allows the program to extend its functionality.
Input format:
Enter a total of 2 rows, the first behavior is an integer number with a value range of [1,2], where 1 represents the wiper system described in Table 1 and 2 represents the wiper system described in Table 2. The second behavior is a number of integer numbers separated by one or more spaces and ending with a number of zeros with a value range of [1,4], where 1 represents the control rod lift operation, 2 represents the control rod down operation, 3 represents the scale up operation, 4 represents the scale down operation, 0 represents the end of the operation (input is considered to end whenever 0 is encountered).
Output format:
The number of output lines of the program is determined by the number of operations on the lever/dial, and one row of data is output for each operation on the lever/dial.The format is: operation type/control lever current gear/dial current scale/wiper current speed Of which there are four operation types, Lever up, Lever down, Dial up, DialDown; Control lever current gear displays Chinese content, such as stop, intermittent, low speed, high speed, super high speed (Table 2); dial current scale displays numeric values, such as 1, 2, 3, 4, 5 (4, 5 see Table 2); wiper current speed displays integer values.
Input sample:
Here is a set of inputs.For example:
1
1 1 1 2 3 2 4 3 3 1 2 0
Output sample:
The corresponding output is given here.For example:
Lever up/Intermittent/1/4
Lever up/Low speed/1/30
Lever up/High speed/1/60
Lever down/low speed/1/30
Dial up/Low speed/2/30
Lever down/Intermittent/2/6
Dial down/Intermittent/1/4
Dial up/Intermittent/2/6
Dial up/Intermittent/3/12
Lever up/Low speed/3/30
Lever down/Intermittent/3/12
The reference code is as follows:
import java.util.Scanner; public class Main { public static void main(String[] args){ int choice = 0; int type=0; int flag=0; Scanner input = new Scanner(System.in); type=input.nextInt(); if(type!=1&&type!=2) {System.out.println("Wrong Format"); System.exit(0); } choice = input.nextInt(); Lever lever = new Lever(1); Dial dial = new Dial(1); if(type==1) { dial.setN(4); lever.setN(4); } else { dial.setN(5); lever.setN(5); } Brush brush = new Brush(0); Agent agent = new Agent(lever,dial,brush); while(choice != 0){ flag=0; 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); default : flag=1; choice = input.nextInt(); break; } if(flag==0) if(type==1) {agent.dealSpeed();//Get brush's speed System.out.println(agent.getBrush().getSpeed()); choice = input.nextInt(); } else if(type==2) { agent.dealSpeed1();//Get brush's speed System.out.println(agent.getBrush().getSpeed()); choice = input.nextInt(); } } } } class Lever { private int pos;//Gear int n; public Lever(){ } public Lever(int pos){ this.pos = pos; } public int getPos() { return pos; } public void setN(int n) { this.n=n; } //Upgrade public void leverUp() { if(this.pos < n){ this.pos ++; } } //Downgrade public void leverDown(){ if(this.pos > 1){ this.pos --; } } } class Dial { private int pos;//scale int n; public Dial(){ } public Dial(int pos){ this.pos = pos; } public int getPos() { return pos; } public void setN(int n) { this.n=n; } //Ascending scale public void dialUp() { if(this.pos < n){ this.pos ++; } } //Downscaling 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; } } //To reduce entity class coupling, an Agent proxy class is designed using a mediation mode class Agent { //Aggregate class design 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; } //Main business logic: Calculate wiper swing speed based on control lever gear, dial scale public void dealSpeed(){ int speed = 0; switch(this.lever.getPos()){ case 1://Stop it System.out.print("Stop it"+"/"+this.dial.getPos()+"/"); speed = 0;break; case 2://intermission System.out.print("intermission"+"/"+this.dial.getPos()+"/"); switch(this.dial.getPos()){ case 1://scale1 speed = 4;break; case 2://scale2 speed = 6;break; case 3://scale3 speed = 12;break; } break; case 3://low speed System.out.print("low speed"+"/"+this.dial.getPos()+"/"); speed = 30;break; case 4://high speed System.out.print("high speed"+"/"+this.dial.getPos()+"/"); speed = 60;break; } this.brush.setSpeed(speed); } public void dealSpeed1() { int speed = 0; switch(this.lever.getPos()){ case 1://Stop it System.out.print("Stop it"+"/"+this.dial.getPos()+"/"); speed = 0;break; case 2://intermission System.out.print("intermission"+"/"+this.dial.getPos()+"/"); switch(this.dial.getPos()){ case 1://scale1 speed = 4;break; case 2://scale2 speed = 6;break; case 3://scale3 speed = 12;break; case 4:// speed=15;break; case 5: speed=20;break; } break; case 3://low speed System.out.print("low speed"+"/"+this.dial.getPos()+"/"); speed = 30;break; case 4://high speed System.out.print("high speed"+"/"+this.dial.getPos()+"/"); speed = 60;break; case 5://high speed System.out.print("Ultra High Speed"+"/"+this.dial.getPos()+"/"); speed = 90;break; } this.brush.setSpeed(speed); } }