javaQuizes2

javaQuizes2.java

public class JavaQuizes {

    /**
     * Quiz 02
     */
    public static void quiz02(String args[]) {
        Scanner scanner = new Scanner(System.in);

        // 月を取得
        System.out.println("誕生日の月を入力してください：");
        int month = scanner.nextInt();

        // 日を取得
        System.out.println("誕生日の日を入力してください：");
        int day = scanner.nextInt();

        if ( month == 3 ) {
          // 月が3月で日が21日未満
          if ( day < 21 ) {
            String text = "魚座";
          // 月が3月で日が21以上
          } else if ( day >= 21 ) {
            String text = "牡羊座";
          }
          
        } else if ( month == 4 ) {
          if ( day < 20 ) {
            String text = "牡羊座";
          } else if ( day >= 20 ) {
            String text = "牡牛座";
          }
          
        } else if ( month == 5 ) {
          if ( day < 21 ) {
            String text = "牡牛座";
          } else if ( day >= 21 ) {
            String text = "双子座";
          }
          
        } else if ( month == 6 ) {
          if ( day < 22 ) {
            String text = "双子座";
          } else if ( day >= 22 ) {
            String text = "蟹座";
          }
          
        } else if ( month == 7 ) {
          if ( day < 23 ) {
            String text = "蟹座";
          } else if ( day >= 23 ) {
            String text = "獅子座";
          }
          
        } else if ( month == 8 ) {
          if ( day < 23 ) {
            String text = "獅子座";
          } else if ( day >= 23 ) {
            String text = "乙女座";
          }
          
        } else if ( month == 9 ) {
          if ( day < 23 ) {
            String text = "乙女座";
          } else if ( day >= 23 ) {
            String text = "天秤座";
          }
          
        } else if ( month == 10 ) {
          if ( day < 24 ) {
            String text = "天秤座";
          } else if ( day >= 24 ) {
            String text = "蠍座";
          }
          
        } else if ( month == 11 ) {
          if ( day < 24 ) {
            String text = "蠍座";
          } else if ( day >= 24 ) {
            String text = "射手座";
          }
          
        } else if ( month == 12 ) {
          if ( day < 22 ) {
            String text = "射手座";
          } else if ( day >= 22 ) {
            String text = "牡羊座";
          }
          
        } else if ( month == 1 ) {
          if ( day < 20 ) {
            String text = "牡羊座";
          } else if ( day >= 20 ) {
            String text = "水瓶座";
          }
          
        } else if ( month == 2 ) {
          if ( day < 19 ) {
            String text = "水瓶座";
          } else if ( day >= 19 ) {
            String text = "魚座";
          }
        } 
        

    }

    
    /**
     * Quiz 03
     */
    public static void quiz03(String args[]) {
        Scanner scanner = new Scanner(System.in);

        // 年を取得
        System.out.println("年を入力してください");
        int year = scanner.nextInt();

        // まず、4で割れるか
        if ( year % 4 == 0 && year % 100 == 0 &&  year % 400 != 0) {
          System.out.println("うるう年じゃない");
          } else {
            System.out.println("うるう年だよ");
          }
        } else {
          System.out.println("うるう年じゃない");
        }

    }

    /**
     * Quiz 05
     */
    public static void quiz05(String args[]) {
        Scanner scanner = new Scanner(System.in);
        
        System.out.println("正の整数を入力してください");
        int number = scanner.nextInt();
        int count = 1;

        while ( count < number ) {
          count = count + 2;
          System.out.println(count);
        }
    }

    /**
     * Quiz 06
     */
    public static void quiz06(String args[]) {
        Scanner scanner = new Scanner(System.in);
        
        System.out.println("正の整数を入力してください：");
        int number = scanner.nextInt();
        int count = 1; // ループカウント
        int sum = 0;   // 3または5の倍数の合計
        
        while ( count < number ) {
          
          // 3の倍数か (3で割ってあまりが出ない数字)
          // あるいは5の倍数か (5で割ってあまりが出ない数字)
          if ( count % 3 == 0 || count % 5 == 0 ) {
            sum = sum + 1;
          }
          
          count = count + 1; //ループの最後に無条件で１を足すことで次の数字へ
        }

        System.out.println("３の倍数または５の倍数の合計は"+sum+"です");
    }

    /**
     * Quiz 07
     */
    public static void quiz07(String args[]) {
        Scanner scanner = new Scanner(System.in);
        
        System.out.println("１個目の整数：");
        int number1 = scanner.nextInt();

        System.out.println("２個目の整数：");
        int number2 = scanner.nextInt();

        if ( number1 < number2 ) {
          int primaryNumber   = number1;
          int secondaryNumber = number2;
        } else {
          int primaryNumber   =  number2;
          int secondaryNumber = number1;
        }
        int sum = 0;
        int count = primaryNumber;

        while ( count <= secondaryNumber ) {
          sum = sum + 1;
          count = count + 1;
        }

        System.out.println(primaryNumber+"以上"+secondaryNumber+"以下の整数の和は"+sum+"です");
    }    
}

n = n + 1; を n++; としないのはわざと