enum Level { HIGH, MEDIUM, LOW };

class LevelUsage {
  static void main(String []args) {
    Level level = Level.HIGH;
    if(level == Level.HIGH) 
      System.out.println("Level HIGH may be dangerous!");
    if(level == Level.MEDIUM) 
      System.out.println("Level MEDIUM is excellent!");
    if(level == Level.LOW) 
      System.out.println("Level LOW is safe.");
  }
}