Java 자바] YYYY-MM-DD hh:mm:ss 날짜 시간 포맷 출력 Source Code

import java.util.Calendar;

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

    Calendar cal = Calendar.getInstance();
    String dateString, timeString;

    dateString = String.format("%04d-%02d-%02d", cal.get(Calendar.YEAR), cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH));
    timeString = String.format("%02d:%02d:%02d", cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE), cal.get(Calendar.SECOND));

    System.out.println(dateString + " " + timeString);

  }
}