Java.util.GregorianCalendar.isLeapYear() 方法

package com.codingdict;

import java.util.*;

public class GregorianCalendarDemo {
   public static void main(String[] args) {

      // create a new calendar
      GregorianCalendar cal = (GregorianCalendar) GregorianCalendar.getInstance();

      // print the current date and time
      System.out.println("" + cal.getTime());

      // check if it is a leap year
      boolean isLeapYear = cal.isLeapYear(cal.get(GregorianCalendar.YEAR));
      System.out.println("Is leap year:" + isLeapYear);

      // check if 2013 is a leap year
      isLeapYear = cal.isLeapYear(2013);
      System.out.println("Is leap year:" + isLeapYear);
   }
}