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fix: lab02
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‎memory/repository/computer_programming_2/.gitignore‎

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### IntelliJ IDEA ###
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out/
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!**/src/main/**/out/
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!**/src/test/**/out/
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### Eclipse ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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bin/
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!**/src/main/**/bin/
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!**/src/test/**/bin/
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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### VS Code ###
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.vscode/
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### Mac OS ###
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.DS_Store

‎memory/repository/computer_programming_2/src/Main.java‎

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//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
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// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
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public class Main {
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public static void main(String[] args) {
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}
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}

‎memory/repository/computer_programming_2/src/lab02/handout/Car.java‎

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package lab02.handout;
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import java.util.Random;
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public class Car implements Comparable<Car>{
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private final String carName;
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private int moveCount;
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public Car(String carName) {
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this.carName = carName;
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this.moveCount = 0;
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}
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public int randomNum() {
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Random random = new Random();
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return random.nextInt(9);
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} // 자동차의 움직임 여부 판단을 위한 난수 생성
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public boolean checkAhead(int num) {
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return num >= 4;
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} // 자동차의 움직임 여부 판단
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public void increaseCount() {
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int check = randomNum();
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if (checkAhead(check)) {
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moveCount++;
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}
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}
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public void increaseCount(int check) {
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if(checkAhead(check)) {
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moveCount++;
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}
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}
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@Override
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public String toString() {
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return carName + " : " + "-".repeat(moveCount);
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}
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@Override
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public int compareTo(Car car) {
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return Integer.compare(this.moveCount, car.moveCount);
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}
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public void setMoveCount(int moveCount) {
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this.moveCount = moveCount;
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}
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public String getCarName() {
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return carName;
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}
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public int getMoveCount() {
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return moveCount;
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}
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}

‎memory/repository/computer_programming_2/src/lab02/handout/RacingCarApplication.java‎

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package lab02.handout;
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import lab02.solution.Car;
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import lab02.solution.Referee;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Scanner;
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import java.util.StringTokenizer;
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public class RacingCarApplication {
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private static final Scanner scanner = new Scanner(System.in);
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private static final ArrayList<Car> cars = new ArrayList<>();
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private static int repeatCount;
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private static boolean isValidCount = false;
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public static void main(String[] args) throws IOException {
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do {
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carName();
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} while(cars.isEmpty());
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while (!isValidCount) {
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System.out.println("시도할 횟수는 몇 회인가요?");
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String input = scanner.nextLine();
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if (input == null || input.isEmpty()) {
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System.out.println("입력된 값이 없습니다. 다시 입력해 주세요.");
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continue;
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} else if (!isNumeric(input)) {
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System.out.println("반복 횟수는 숫자만 입력해 주세요. 다시 입력해 주세요.");
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continue;
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}
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repeatCount = Integer.parseInt(input);
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if (repeatCount > 0) {
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isValidCount = true;
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} else {
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System.out.println("반복 횟수는 1 이상의 정수여야 합니다. 다시 입력해 주세요.");
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}
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}
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while (repeatCount > 0) {
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repeatIncrease();
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repeatCount--;
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}
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Referee referee = new Referee(cars);
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referee.decideTheGame();
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referee.printResult();
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}
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public static void repeatIncrease() {
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for (Car car : cars) {
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car.increaseCount();
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System.out.println(car);
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}
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System.out.println();
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}
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public static void carName() {
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StringTokenizer st = null;
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do {
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System.out.println("경주할 자동차 이름을 입력하세요 (쉼표(,)로 구분).");
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String input = scanner.nextLine();
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if (input == null || input.trim().isEmpty()) {
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System.out.println("자동차 이름을 반드시 입력해야 합니다.");
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continue;
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}
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st = new StringTokenizer(input, ",");
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if(st.countTokens() < 2) {
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System.out.println("최소 2대 이상의 자동차를 쉼표(,)로 구분해서 입력해야 합니다.");
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continue;
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}
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break;
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} while(true);
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while (st.hasMoreElements()) {
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String name = st.nextToken().strip();
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if (!name.isEmpty() && name.length() <= 5) {
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cars.add(new Car(name));
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}
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}
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}
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/**
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* 입력된 문자열이 숫자로만 구성되어 있는지 확인합니다.
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*/
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private static boolean isNumeric(String str) {
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if (str == null || str.isEmpty()) {
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return false;
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}
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for (char c : str.toCharArray()) {
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if (!Character.isDigit(c)) {
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return false;
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}
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}
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return true;
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}
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}

‎memory/repository/computer_programming_2/src/lab02/handout/Referee.java‎

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package lab02.handout;
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import lab02.solution.Car;
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import java.util.ArrayList;
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public class Referee {
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private ArrayList<lab02.solution.Car> cars;
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private static ArrayList<lab02.solution.Car> victoryCars;
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public Referee() {}
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public Referee(ArrayList<lab02.solution.Car> cars) {
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this.cars = cars;
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}
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public ArrayList<lab02.solution.Car> getVictoryCars() {
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return victoryCars;
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}
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public void addCar(lab02.solution.Car car) {
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cars.add(car);
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}
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public void decideTheGame() {
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initVictoryCar();
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for (lab02.solution.Car car : cars) {
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faster(car);
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}
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} // 우승자 판별
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public void printResult() {
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StringBuilder result = new StringBuilder();
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for (lab02.solution.Car victoryCar : victoryCars) {
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result.append(victoryCar.getCarName())
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.append(", ");
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}
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result = new StringBuilder(result.substring(0, result.length() - 2));
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result.append("가 최종우승했습니다.");
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System.out.println(result);
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} // 우승 결과 출력
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public void initVictoryCar() {
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ArrayList<lab02.solution.Car> list = new ArrayList<>();
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if (!cars.isEmpty()) {
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list.add(cars.get(0));
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}
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victoryCars = list;
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} // 우승자를 판별할 초기값
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public void faster(lab02.solution.Car cmp) {
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Car tmp= victoryCars.get(0);
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if(tmp.equals(cmp)) return;
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if(tmp.compareTo(cmp) > 0){
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return;
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}
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if(tmp.compareTo(cmp) == 0) {
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victoryCars.add(cmp);
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return;
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}
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victoryCars.clear();
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victoryCars.add(cmp);
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} // 우상자 판별을 위한 거리 비교
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}

‎memory/repository/computer_programming_2/src/lab02/solution/Car.java‎

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package lab02.solution;
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import java.util.Random;
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public class Car implements Comparable<Car>{
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private final String carName;
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private int moveCount;
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public Car(String carName) {
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this.carName = carName;
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this.moveCount = 0;
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}
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public int randomNum() {
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Random random = new Random();
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return random.nextInt(9);
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} // 자동차의 움직임 여부 판단을 위한 난수 생성
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public boolean checkAhead(int num) {
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return num >= 4;
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} // 자동차의 움직임 여부 판단
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public void increaseCount() {
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int check = randomNum();
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if (checkAhead(check)) {
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moveCount++;
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}
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}
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public void increaseCount(int check) {
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if(checkAhead(check)) {
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moveCount++;
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}
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}
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@Override
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public String toString() {
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return carName + " : " + "-".repeat(moveCount);
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}
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@Override
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public int compareTo(Car car) {
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return Integer.compare(this.moveCount, car.moveCount);
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}
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public void setMoveCount(int moveCount) {
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this.moveCount = moveCount;
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}
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public String getCarName() {
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return carName;
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}
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public int getMoveCount() {
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return moveCount;
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}
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}

‎memory/repository/computer_programming_2/src/lab02/solution/RacingCarApplication.java‎

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package lab02.solution;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.StringTokenizer;
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public class RacingCarApplication {
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private static final BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
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private static final ArrayList<Car> cars = new ArrayList<>();
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private static int repeatCount;
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public static void main(String[] args){
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try {
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carName();
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repeatCount();
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} catch (IOException e) {
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System.out.println("입력된 값이 없습니다");
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e.getStackTrace();
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} catch (NumberFormatException e) {
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System.out.println("반복횟수는 int 타입 입니다.");
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} catch (Exception e) {
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System.out.println("경주할 자동차 이름의 구분은 (,)를 기준으로 구분 해야합니다.");
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}
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while (repeatCount > 0) {
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repeatIncrease();
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repeatCount--;
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}
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Referee referee = new Referee(cars);
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referee.decideTheGame();
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referee.printResult();
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}
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public static void repeatIncrease() {
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for (Car car : cars) {
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car.increaseCount();
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System.out.println(car);
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}
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System.out.println();
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}
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public static void carName() throws IOException {
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System.out.println("경주할 자동차 이름을 입력하세요(이름은 쉽표(,)를 기준으로 구분.");
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StringTokenizer st = new StringTokenizer(bufferedReader.readLine(),",");
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while (st.hasMoreElements()) {
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String name = st.nextToken().strip();
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if(name.length() <= 5) {
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cars.add(new Car(name));
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}
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}
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}
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public static void repeatCount() throws IOException {
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System.out.println("시도할 횟수는 몇회인가요?");
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repeatCount = Integer.parseInt(bufferedReader.readLine());
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}
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}

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