Start and End dates for Week or Month provided with any date within

/**
 *
 */
package com.kant.calendertest;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;

/**
 * @author shaskant
 *
 */
public class Mycalender {

 /**
  * http://www.java2s.com/Tutorial/Java/
  * 0120__Development/FulldaynameSimpleDateFormatEEEE.htm
  *
  * @param args
  * @throws ParseException
  */
 public static void main(String[] args) throws ParseException {

  Date date = parseDate("Wed dec 24 20:29:30 JST 2016");
  System.out.println("This Week: " + getThisWeek(date).toString());
  ;
  System.out.println("This Month: " + getThisMonth(date).toString());

 }

 /**
  * Parse date from target string
  *
  * @param target
  * @return
  * @throws ParseException
  */
 private static Date parseDate(String target) throws ParseException {
  DateFormat df = new SimpleDateFormat("EEE MMM dd kk:mm:ss z yyyy",
    Locale.ENGLISH);
  Date result = df.parse(target);
  System.out.println(result);
  return result;
 }

 /**
  * Get month start and end dates
  *
  * @param date
  * @return
  */
 private static DateRange getThisMonth(Date date) {

  Calendar cal = GregorianCalendar.getInstance();
  cal.setTime(date);

  cal.set(Calendar.DATE, cal.getActualMinimum(Calendar.DATE));
  Date startDate = cal.getTime();

  cal.set(Calendar.DATE, cal.getActualMaximum(Calendar.DATE));
  Date endDate = cal.getTime();

  return new DateRange(startDate, endDate);
 }

 /**
  * @return
  *
  */
 private static DateRange getThisWeek(Date date) {
  Calendar cal = Calendar.getInstance();
  cal.setTime(date);
  cal.set(Calendar.DAY_OF_WEEK, 2);
  Date startDate = cal.getTime();
  cal.add(Calendar.DAY_OF_WEEK, 6); // adds 6 days to initial day set.
  Date endDate = cal.getTime();
  return new DateRange(startDate, endDate);
 }

 /**
  * Placeholder to return two date values.

  *
  * @author shaskant
  *
  */
 static class DateRange {
  private Date startDate = null;
  private Date endDate = null;

  /**
   * @param startDate
   * @param endDate
   */
  public DateRange(Date startDate, Date endDate) {
   super();
   this.startDate = startDate;
   this.endDate = endDate;
  }

  /**
   * @return the startDate
   */
  public Date getStartDate() {
   return startDate;
  }

  /**
   * @return the endDate
   */
  public Date getEndDate() {
   return endDate;
  }

  @Override
  public String toString() {
   SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd EEEE");
   return "Starts on: " + formatter.format(startDate) + " Ends on: "
     + formatter.format(endDate);
  }

 }

}