Java.util.Calendar.isSet() Method

Description

The java.util.Calendar.isSet(int field) method checks if the given calendar field has a value set.Cases that the value has been set by internal fields calculations triggered by a get method call are included.

Declaration

Following is the declaration for java.util.Calendar.isSet method

public final boolean isSet(int field)

Parameters

• field -- The field to be checked.

Return Value

This method returns true if the given calendar field has a value set; false otherwise.

Exception

• NA

Example

The following example shows the usage of java.util.calendar.isSet() method.

package com.tutorialspoint;

import java.util.*;

public class CalendarDemo {

   public static void main(String[] args) {

      // create a calendar
      Calendar cal = Calendar.getInstance();

      // display the current calendar
      System.out.println("Current Day is " + cal.get(Calendar.DAY_OF_MONTH));

      // determine if the given calendar field has a value set
      boolean b = cal.isSet(Calendar.DAY_OF_MONTH);
      System.out.println("Day of month is set: " + b);

      // clear day of month
      cal.clear(Calendar.DAY_OF_MONTH);

      // determine if the given calendar field has a value set
      b = cal.isSet(Calendar.DAY_OF_MONTH);
      System.out.println("Day of month is set: " + b);
   }
}

Let us compile and run the above program, this will produce the following result:

Current Day is 6
Day of month is set: true
Day of month is set: false