Get first date of current month in java

Question

I am trying to get to and from date where ToDate will have previous date and FromDate will have first date of the current month. For January it wou

Answer 1

Works Like a charm!

public static String  getCurrentMonthFirstDate(){
    Calendar c = Calendar.getInstance();   
    c.set(Calendar.DAY_OF_MONTH, 1);
    DateFormat df = new SimpleDateFormat("MM-dd-yyyy");
    //System.out.println(df.format(c.getTime())); 
    return df.format(c.getTime());
}

//Correction :output =02-01-2018

Answer 2

Joda Time

If I am understanding the question correctly, it can be done very easily by using joda time

LocalDate fromDate = new LocalDate().withDayOfMonth(1);
LocalDate toDate = new LocalDate().minusDays(1);

Answer 3

You can use withDayOfMonth(int dayOfMonth) method from java8 to return first day of month:

LocalDate firstDay = LocalDate.now().withDayOfMonth(1);
System.out.println(firstDay);   // 2019-09-01

Answer 4

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

...
Date currentMonth = new Date();
String yyyyMM = new SimpleDateFormat("yyyyMM").format(currentMonth);
Date firstDateOfMonth = new SimpleDateFormat("yyyyMM").parse(yyyyMM);
...

my stupid solution. but it's work for me :D

Answer 5

If you also want the time is set to 0 the code is:

import java.util.*;
import java.text.*;

public class DateCalculations {
  public static void main(String[] args) {

    Calendar aCalendar = Calendar.getInstance();

    aCalendar.set(Calendar.DATE, 1);
    aCalendar.set(Calendar.HOUR_OF_DAY, 0);
    aCalendar.set(Calendar.MINUTE, 0);
    aCalendar.set(Calendar.SECOND, 0);

    Date firstDateOfCurrentMonth = aCalendar.getTime();

    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss zZ");
    sdf.setTimeZone(TimeZone.getTimeZone("UTC"));

    String dayFirst = sdf.format(firstDateOfCurrentMonth);
    System.out.println(dayFirst);
  }
}

You can check online easily without compiling by using: http://www.browxy.com/

Answer 6

Calendar date = Calendar.getInstance();
date.set(Calendar.DAY_OF_MONTH, 1);