Java Get First Day of Month from Specified Date
In this Java tutorial, we learn how to get the first day of month from a given specified Date object in Java programming language.
How to get first date from month from specified Date
At this first step, we create a new Java class named DateUtil, and implement a new static method named getMonthFirstDate(Date date) to populate the given Date object and return the first day of month as Date of object.
DateUtil.java
import java.util.Calendar;
import java.util.Date;
public class DateUtil {
/**
* Get the first Date of month of a given Date object
* @param date the input Date object
* @return the first Date of month
*/
public static Date getMonthFirstDate(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
calendar.set(Calendar.HOUR_OF_DAY, calendar.getActualMinimum(Calendar.HOUR_OF_DAY));
calendar.set(Calendar.MINUTE, calendar.getActualMinimum(Calendar.MINUTE));
calendar.set(Calendar.SECOND, calendar.getActualMinimum(Calendar.SECOND));
calendar.set(Calendar.MILLISECOND, calendar.getActualMinimum(Calendar.MILLISECOND));
return calendar.getTime();
}
}
In the following example Java program, we learn how to use the above DateUtil class to get the first day of month from given Date object.
GetMonthFirstDateExample.java
import java.util.Date;
public class GetMonthFirstDateExample {
public static void main(String... args) {
Date date = new Date();
// Get First Day of Month from Specified Date
Date firstDateOfMonth = DateUtil.getMonthFirstDate(date);
System.out.println("Input Date: " + date);
System.out.println("First Date of month: " + firstDateOfMonth);
}
}
Input Date: Wed Aug 17 13:38:49 ICT 2022
First Date of month: Mon Aug 01 00:00:00 ICT 2022
Happy Coding 😊
Related Articles
Java Get Last Date of Current Month
Java Get Last Date of Current Year
Java Get Last Date of Specified Month
Java Get Last Date of Specified Year
Java Check if Calendar is Week Day or Weekend Day
Java Check if Date is Week Day or Weekend Day
Java Check if Today is Week Day or Weekend Day
Java Convert Date to Start of Day Time
Java Convert Date to End of Day Time
Java Get First Date of Current Year
Java Get First Date of Current Month
Java Get Same Date in Last Month
Java Get First Date of Current Week
Java Get Last Date of Current Week
Java Get First LocalDate of Current Week
Java Get Last LocalDate of Current Week
Java Get First LocalDate of Current Month
Java Get Last LocalDate of Current Month