public enum MONTH{JAN(31),FEB(28),MAR(31),APR(30),MAY(31),JUN(30),JLY(31),AUG(31),SEP(30),OCT(31),NOV(30),DEC(31); private final int days; MONTH(int d){this.days = d;}
public int getDays(){return days;} } public static void main(String[] args){ MONTH month = MONTH.FEB; System.out.println(month.getDays()); for(MONTH m : MONTH.values()){ System.out.println(m + ":" + m.getDays()); } month = MONTH.valueOf("APR"); System.out.println(month.getDays()); } }