Java Check if Calendar is Week Day or Weekend Day

In this Java tutorial, we learn how to write a Java utility class to check if a Calendar date is a week day or a weekend day in Java programming language.

How to check if Calendar is week day or weekend day in Java

At this first step, we create a new Java class named DateUtil and implement these two static method.

isWeekDay(Calendar calendar) to check a given Calendar object whether it is a week day or not.
isWeekend(Calendar calendar) to check a given Calendar object whether it is a weekend day or not.

DateUtil.java

import java.util.Calendar;

public class DateUtil {

    /**
     * This method to check a given Calendar date is a week day or not.
     * @param calendar
     * @return
     */
    public static boolean isWeekDay(Calendar calendar) {
        int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
        return (dayOfWeek != Calendar.SATURDAY)
                && (dayOfWeek != Calendar.SUNDAY);
    }

    /**
     * This method to check a given Calendar date is a weekend day or not.
     * @param calendar
     * @return
     */
    public static boolean isWeekend(Calendar calendar) {
        int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
        return (dayOfWeek == Calendar.SATURDAY)
                || (dayOfWeek == Calendar.SUNDAY);
    }

}

In the following example Java code, we learn how to use the DateUtil class above in Java program to check if a given Calendar object is a week day or weekend day.

CheckCalendarWeekDayAndWeekendExample.java

import java.util.Calendar;
import java.util.GregorianCalendar;

public class CheckCalendarWeekDayAndWeekendExample {
    public static void main(String... args) {
        Calendar calendar1 = new GregorianCalendar(2022, Calendar.AUGUST, 14);
        Calendar calendar2 = new GregorianCalendar(2022, Calendar.AUGUST, 15);

				// Check if Calendar is Week Day or not
        boolean isWeekDay1 = DateUtil.isWeekDay(calendar1);
        boolean isWeekDay2 = DateUtil.isWeekDay(calendar2);

				// Check if Calendar is Weekend Day or not
        boolean isWeekend1 = DateUtil.isWeekend(calendar1);
        boolean isWeekend2 = DateUtil.isWeekend(calendar2);

        System.out.println("calendar1: " + calendar1.getTime());
        System.out.println("calendar2: " + calendar2.getTime());

        System.out.println("\ncalendar1 is week day: " + isWeekDay1);
        System.out.println("calendar2 is week day: " + isWeekDay2);

        System.out.println("\ncalendar1 is weekend: " + isWeekend1);
        System.out.println("calendar2 is weekend: " + isWeekend2);
    }
}

The output as below.

calendar1: Sun Aug 14 00:00:00 ICT 2022
calendar2: Mon Aug 15 00:00:00 ICT 2022

calendar1 is week day: false
calendar2 is week day: true

calendar1 is weekend: true
calendar2 is weekend: false

Happy Coding 😊

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