碼農眼中的奧運逸事

--------------------------------CompetitionResult.java-------------------------------------
package com.lch.olympic;

/** 比賽結果 **/
public enum CompetitionResult {
 WIN {
  public String getResult() {
   return "升國旗，奏國歌，頒獎！";
  }
 },
 DRAW {
  public String getResult() {
   return "國旗平置，頒獎！";
  }
 },
 LOSE {
  public String getResult() {
   return "奧運精神的體現，精神的勝者！";
  }
 };
 abstract String getResult();
}

------------------------------------IOlympicComp.java---------------------------------
package com.lch.olympic;

/** 比賽結果處理 **/
public interface IOlympicComp {
 String winGame();

 String drawGame();

 String loseGame();
}

------------------------------------NormalOlympic.java---------------------------------
package com.lch.olympic;

public abstract class NormalOlympic implements IOlympicComp {

 public String drawGame() {
  return CompetitionResult.DRAW.getResult();
 }

 public String loseGame() {
  return CompetitionResult.LOSE.getResult();
 }

 public String winGame() {
  return CompetitionResult.WIN.getResult();
 }

}

---------------------------------LondonOlympic.java------------------------------------
package com.lch.olympic;

public class LondonOlympic extends NormalOlympic {
 protected String nation;

 enum Nation {
  CHINA {
   public String getNationName() {
    return "CHINA";
   }
  },
  OTHERS {
   public String getNationName() {
    return "OTHERS";
   }
  };
  abstract String getNationName();
 }

 /** 私有化默認構造子 **/
 private LondonOlympic() {
 }

 /**
  * 構造子
  *
  * @param nation國家
  *
  * **/
 public LondonOlympic(String nation) {
  this.nation = nation;
 }

 @Override
 public String drawGame() {
  String result;
  if (Nation.CHINA.getNationName().equals(nation)) {
   result = "國旗放其它國家下面！";
  } else {
   result = CompetitionResult.DRAW.getResult();
  }
  return result;
 }

 @Override
 public String loseGame() {
  String result;
  if (Nation.CHINA.getNationName().equals(nation)) {
   result = "消極比賽，取消比賽資格！";
  } else {
   result = CompetitionResult.LOSE.getResult();
  }
  return result;
 }

 @Override
 public String winGame() {
  String result;
  if (Nation.CHINA.getNationName().equals(nation)) {
   result = "使用興奮劑？！";
  } else {
   result = CompetitionResult.WIN.getResult();
  }
  return result;
 }

}

---------------------------------Test.java------------------------------------
package com.lch.olympic;

public class Test {
 private final String CHINA = "CHINA";
 private final String NOT_CHINA = "CDA";

 public void comp4China() {
  LondonOlympic olympic = new LondonOlympic(CHINA);
  System.out.println("中國贏得比賽：" + olympic.winGame());
  System.out.println("中國平了比賽：" + olympic.drawGame());
  System.out.println("中國輸了比賽：" + olympic.loseGame());
 }

 public void comp4Other() {
  LondonOlympic olympic = new LondonOlympic(NOT_CHINA);
  System.out.println("非中國贏得比賽：" + olympic.winGame());
  System.out.println("非中國平了比賽：" + olympic.drawGame());
  System.out.println("非中國輸了比賽：" + olympic.loseGame());
 }

 public static void main(String[] args) {
  Test t = new Test();
  System.out.println("\n*********** London Olympic ***********\n");
  t.comp4China();
  System.out.println("\n===========  楚河           漢界      ===========\n");
  t.comp4Other();
  System.out.println("\n*********** London Olympic ***********\n");
 }
}