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CompareTo() and equals() for enum data type

enum Week {   Monday, Tuesday, Wednesday, Thursday, Friday, Saturaday, Sunday } public class MainClass {   public static void main(String args[]) {     Week day1, day2, day3;     day1 = Week.Monday;     day2 = Week.Tuesday;     day3 = Week.Friday;     //      if (day1.compareTo(day2) < 0)       System.out.println(day1 + " comes before " + day2);     if (day2.compareTo(day3) > 0)       System.out.println(day2 + " comes before " + day3);     if (day1.compareTo(day3) == 0)       System.out.println(day1 + " equals " + day3);   } } Monday comes before Tuesday