package com.test;

import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import com.sun.org.apache.xerces.internal.impl.xpath.regex.ParseException;

public class TestDate {

    public static Timestamp getDayBegin() {
        Calendar cal = Calendar.getInstance
 
();
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.MILLISECOND, 001);
        return new Timestamp(cal.getTimeInMillis());
    }

    public static Timestamp getDayEnd() {
        Calendar cal = Calendar.getInstance
 
();
        cal.set(Calendar.HOUR_OF_DAY, 23);
        cal.set(Calendar.SECOND, 59);
        cal.set(Calendar.MINUTE, 59);
        cal.set(Calendar.MILLISECOND, 001);
        return new Timestamp(cal.getTimeInMillis());
    }

    public static String getDateStr(Timestamp time, String format) {
        return new SimpleDateFormat(format).format
 
(new Date(time.getTime()));
    }

    public static void main(String[] args) throws ParseException {

        System.out.println(getDateStr(getDayBegin(), "yyyy-MM-dd HH:mm:ss"));
        System.out.println(getDateStr(getDayEnd(), "yyyy-MM-dd HH:mm:ss"));

    }
}