Java gets the current date using the instance

package com.infomorrow.dao;

import java.sql.Timestamp;
import java.util.Calendar;
import java.util.TimeZone;
import org.junit.Test;
public class test_date {
@Test
public void test(){
    Timestamp today = new Timestamp(Calendar.getInstance(TimeZone.getTimeZone("GMT+8")).getTimeInMillis());
    int year=today.getYear()+1900;
    int month=today.getMonth()+1;
    int day = today.getDate();
    String date = year+"-"+month+"-"+day;
    System.out.println("date:"+date);
    System.out.println(today);
    }
}
//The output
date:2013-12-17
2013-12-17 13:04:30.809