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Java GregorianCalendar isLeapYear() Method
Description
The Java GregorianCalendar isLeapYear(int year) method determines if the given year is a leap year. Returns true if the given year is a leap year.
Declaration
Following is the declaration for java.util.GregorianCalendar.isLeapYear() method
public boolean isLeapYear(int year)
Parameters
year − the given year.
Return Value
This method returns true if the given year is a leap year; false otherwise.
Exception
NA
Checking an Year to be Leap Year Example
The following example shows the usage of Java GregorianCalendar isLeapYear(int) method. We're creating a GregorianCalendar instance of current date. We're checking if current year is leap year or not. Then we've checked another year for being a leap year.
package com.tutorialspoint; import java.util.GregorianCalendar; 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 2012 is a leap year isLeapYear = cal.isLeapYear(2012); System.out.println("Is leap year:" + isLeapYear); } }
Output
Let us compile and run the above program, this will produce the following result −
Mon Apr 29 14:10:41 IST 2024 Is leap year:true Is leap year:true
Checking Future Year to be Leap Year Example
The following example shows the usage of Java GregorianCalendar isLeapYear(int) method. We're creating a GregorianCalendar instance of current date. We've added two years to the calendar instance. Then we've checked it for being a leap year.
package com.tutorialspoint; import java.util.GregorianCalendar; 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()); // add 2 years cal.add(GregorianCalendar.YEAR, 2); // check if it is a leap year boolean isLeapYear = cal.isLeapYear(cal.get(GregorianCalendar.YEAR)); System.out.println("Is leap year:" + isLeapYear); } }
Output
Let us compile and run the above program, this will produce the following result −
Mon Apr 29 14:11:02 IST 2024 Is leap year:false
Checking Past Year to be Leap Year Example
The following example shows the usage of Java GregorianCalendar isLeapYear(int) method. We're creating a GregorianCalendar instance of current date. We've subtracted two years from the calendar instance. Then we've checked it for being a leap year.
package com.tutorialspoint; import java.util.GregorianCalendar; 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()); // subtract 2 years cal.add(GregorianCalendar.YEAR, -2); // check if it is a leap year boolean isLeapYear = cal.isLeapYear(cal.get(GregorianCalendar.YEAR)); System.out.println("Is leap year:" + isLeapYear); } }
Output
Let us compile and run the above program, this will produce the following result −
Mon Apr 29 14:11:22 IST 2024 Is leap year:false
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