JAVA_05_열거형(enum),

📌열거형(상수)

• 열거 타입 선언
  - Public enum 열거타입이름 {....};
• 열거 상수 선언
  - 대문자로 생성한다.
  - Ex) Public enum {MONDAY, TUESDAY}
• 열거상수 사용
  -Ex) Week.SUNDAY

public static void main(String[] args) {
Week today = null;
Calendar cal = Calendar.getInstance();
int week = cal.get(Calendar.DAY_OF_WEEK);
switch(week) {
case 1:
today = Week.SUNDAY; break;
case 2:
today = Week.MONDAY; break;
case 3:
today = Week.TUESDAY; break;
case 4:
today = Week.WEDNESDAY; break;
case 5:
today = Week.THURSDAY; break;
case 6:
today = Week.FRIDAY; break;
case 7:
today = Week.SATURDAY; break;
}
System.out.println(" 오늘 요일: " + today);
if(today == Week.SUNDAY) {
System.out.println("일요일에는 축구를 합니다");
} else {
System.out.println("자바 공부를 열심히 합시다");
}
}

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