Java Check if Date is Week Day or Weekend Day

import java.util.Calendar;
import java.util.Date;

public class DateUtil {

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

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

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class CheckDateWeekDayAndWeekendExample {
    public static void main(String... args) throws ParseException {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        Date date1 = simpleDateFormat.parse("2022/08/14 08:30:00");
        Date date2 = simpleDateFormat.parse("2022/08/15 08:30:00");

        // Check if Calendar is Week Day or not
        boolean isWeekDay1 = DateUtil.isWeekDay(date1);
        boolean isWeekDay2 = DateUtil.isWeekDay(date2);

        // Check if Calendar is Weekend Day or not
        boolean isWeekend1 = DateUtil.isWeekend(date1);
        boolean isWeekend2 = DateUtil.isWeekend(date2);

        System.out.println("date1: " + date1);
        System.out.println("date2: " + date2);

        System.out.println("\ndate1 is week day: " + isWeekDay1);
        System.out.println("date2 is week day: " + isWeekDay2);

        System.out.println("\ndate1 is weekend: " + isWeekend1);
        System.out.println("date2 is weekend: " + isWeekend2);
    }
}

date1: Sun Aug 14 08:30:00 ICT 2022
date2: Mon Aug 15 08:30:00 ICT 2022

date1 is week day: false
date2 is week day: true

date1 is weekend: true
date2 is weekend: false