[JAVA] 날짜 구하기...

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

class DateTest
{
public static void main(String[] args)
{
/*
* 첫번째 방법
*/
Calendar rightNow = Calendar.getInstance();

String srchTime = "";
String srchDate = "";

System.out.println("현재시간은 " + rightNow.get(Calendar.YEAR) + "년" +
(rightNow.get(Calendar.MONTH)-Calendar.JANUARY+1) + "월" +
rightNow.get(Calendar.DATE) + "일" +
rightNow.get(Calendar.HOUR_OF_DAY) + "시" +
rightNow.get(Calendar.MINUTE) + "분" +
rightNow.get(Calendar.SECOND) + "초");

int iYear = rightNow.get(Calendar.YEAR);
int iMonth = rightNow.get(Calendar.MONTH)-Calendar.JANUARY+1;
int iDay = rightNow.get(Calendar.DATE);
int iHour = rightNow.get(Calendar.HOUR_OF_DAY);
int iMinute = rightNow.get(Calendar.MINUTE);
int iSecond = rightNow.get(Calendar.SECOND);

String sYear = String.valueOf(iYear);
String sMonth = String.valueOf(iMonth);
String sDay = String.valueOf(iDay);
String sHour = String.valueOf(iHour);
String sMinute = String.valueOf(iMinute);
String sSecond = String.valueOf(iSecond);
//-----------------

System.out.println(sYear);
System.out.println(sMonth);
System.out.println(sDay);
System.out.println(sHour);
System.out.println(sMinute);
System.out.println(sSecond);

/* if(!srchDate.equals(""))
{
if(srchDate.equals(sYear+"-"+sMonth+"-"+sDay))
srchTime = sYear+"-"+sMonth+"-"+sDay+ " " + sHour+":"+sMinute+":"+sSecond;
else
srchTime = srchDate + " " + " 00:00:00";
}*/

/*
* 두번째 방법
*/
Date today = new Date();
Date yesterday = new Date();
Date tomorrow = new Date();
SimpleDateFormat simpleDate=new SimpleDateFormat("yyyyMMdd");

yesterday.setTime( today.getTime() - ( (long) 1000 * 60 * 60 * 24 ) );
tomorrow.setTime(today.getTime() + ( (long) 1000 * 60 * 60 * 24 ) );

String startDate=simpleDate.format(yesterday);
String endDate=simpleDate.format(tomorrow);

System.out.println("어제 날짜 " + startDate);
System.out.println("내일 날짜 " + endDate);
}
}