[Java] 경마 프로그램 예제

/**
 *
10마리의 말들이 경주하는 경마 프로그램 작성하기

말은 Horse라는 이름의 클래스로 구성하고,
이 클래스는 말이름(String), 등수(int)를 멤버변수로 갖는다.
그리고, 이 클래스에는 등수를 오름차순으로 처리할 수 있는
기능이 있다.( Comparable 인터페이스 구현)

경기 구간은 1~50구간으로 되어 있다.

경기 중 중간중간에 각 말들의 위치를 >로 나타내시오.
예)
1번말 --->------------------------------------
2번말 ----->----------------------------------
...

오름차순 sort
경기가 끝나면 등수 순으로 출력한다.

스레드로 말 클래스 만들고 전역변수로 발이름, 등수
 */

 

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

public class RaceHorse {

	static int strRank = 1;

	public static void main(String[] args) {
		List<Horse> list = new ArrayList<>();

		list.add(new Horse("0번마"));
		list.add(new Horse("1번마"));
		list.add(new Horse("2번마"));
		list.add(new Horse("3번마"));
		list.add(new Horse("4번마"));
		list.add(new Horse("5번마"));
		list.add(new Horse("6번마"));
		list.add(new Horse("7번마"));
		list.add(new Horse("8번마"));
		list.add(new Horse("9번마"));

		for (Horse horse : list) {
			horse.start();
		}

		for (Horse hs : list) {
			try {
				hs.join();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}

		Collections.sort(list);
		System.out.println("경기끝 ....");
		System.out.println("======================================================");
		System.out.println();
		System.out.println(" 경기 결과 ");

		for (Horse horse : list) {
			System.out.println(horse.getName1() + " " + horse.getRank() + "등");
		}
	}
}

class Horse extends Thread implements Comparable<Horse>{
   private String name1;
   int rank;
   
   public Horse(String name) {
      this.name1 = name;
   }
   
   public String getName1() {
      return name1;
   }

   public void setName1(String name) {
      this.name1 = name;
   }

   public int getRank() {
      return rank;
   }

   public void setRank(int rank) {
      this.rank = rank;
   }


	@Override
	public void run() {
		for (int i = 0; i < 50; i++) {
			System.out.println("\n" + name1 + " : ");
			for (int j = 0; j < i; j++) {
				System.out.print("-");
			}
			System.out.print(">");

			for (int j = 49; j > i; j--) {
				System.out.print("-");
			}

			System.out.println();
			System.out.println();
			System.out.println();

			try {
				Thread.sleep((int) (Math.random() * 500));
			} catch (InterruptedException e) {
				e.printStackTrace();
			}

		}
		System.out.println(name1 + " 끝");

		setRank(RaceHorse.strRank);
		RaceHorse.strRank++;
	}

	@Override
	public int compareTo(Horse hor) {
		if (rank > hor.getRank()) {
			return 1;
		} else {
			return -1;
		}
	}
}