옆집동생

경마 프로그램 만들기

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import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
​
//만드는 과정에서 많은 실패를 맛보아서 나쁜말이라는 이름이 되었습니다.
public class RunningBadHorse {
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    public static void main(String[] args) {
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        List<Horse2> list = new ArrayList<Horse2>();
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        list.add(new Horse2("1번말"));
        list.add(new Horse2("2번말"));
        list.add(new Horse2("3번말"));
        list.add(new Horse2("4번말"));
        list.add(new Horse2("5번말"));
        list.add(new Horse2("6번말"));
        list.add(new Horse2("7번말"));
        list.add(new Horse2("8번말"));
        list.add(new Horse2("9번말"));
        list.add(new Horse2("0번말"));
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        // 말달리는 메서드
        for (Horse2 horse : list) {
            horse.start();
        }
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        PrintHorse ph = new PrintHorse(list);
        ph.start();
    }
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}
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class PrintHorse extends Thread {
    List<Horse2> list;
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    public PrintHorse(List<Horse2> h1) {
        this.list = h1;
    }
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    @Override
    public void run() {
        String[] arr = new String[50];
        int rnk = 1;
        boolean ing = true;
        while (ing) {
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            for (Horse2 h2 : list) {
                if(h2.isGoal()==true) {
                    System.out.print(h2.getHName() + " : ");
                    for (int j = 0; j < 50; j++) {
                        arr[j] = "*";
                        System.out.print(arr[j]);
                    }
                    System.out.println();
                    continue;
                }
                
                // 말 달리는거 위치표시
                System.out.print(h2.getHName() + " : ");
                for (int i = 0; i < 50; i++) {
                    arr[i] = "-";
                    if (h2.getLocation() == i) {
                        arr[i] = ">";
                    }
                }
                
                
                // 말 10마리 출력
                for (int j = 0; j < 50; j++) {
                    System.out.print(arr[j]);
                }
                System.out.println();
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                // 순위매기기
                if (h2.getLocation() >= 50) {
                    h2.setRank(rnk);
                    rnk++;
                    h2.setGoal(true);
                }
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            } // end for
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            //일정 시간마다 출력
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println("=========================================");
            
            //말 다 들어오면 경기 끝
            if (rnk==11) {
                
                System.out.println("=========경기 끝!=======");
                ing=false;
            }
        }// end while
        Collections.sort(list);
        for (Horse2 h2 : list) {
            System.out.printf("%3d 등  :  %3s",h2.getRank(),h2.getHName());
            System.out.println();
        }
        System.exit(0);
    }
​
}
​
// 말 클래스
class Horse2 extends Thread implements Comparable<Horse2> {
    private String name;
    private int rank = 0;
    private int location = 0;
    public volatile boolean goal = false; // 결승지점 통과 여부
    
    @Override
    public void run() {
        int cnt = 0;
        while (true) {
            location += cnt;
            try {
                Thread.sleep(1000 * (int) (Math.random() * 4));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
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            if (location == 50) {
                break;
            }
            cnt++;
        }
    }
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    public String getHName() {
        return name;
    }
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    // public void setName(String name) {
    // this.name = name;
    // }
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    public boolean isGoal() {
        return goal;
    }
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    public void setGoal(boolean goal) {
        this.goal = goal;
    }
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    public int getRank() {
        return rank;
    }
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    public void setRank(int rank) {
        this.rank = rank;
    }
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    public int getLocation() {
        return location;
    }
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    public void setLocation(int location) {
        this.location = location;
    }
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    public Horse2(String name) {
        this.name = name;
    }
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    @Override
    public int compareTo(Horse2 arg0) {
        return ((Integer) rank).compareTo(arg0.rank);
    }
​
}