Ticks値をJavaで扱う

 

C#でよく利用されているTicks値をJavaのサービスで解析するために書いたコード

paizaへのリンクはこちら

https://paiza.io/projects/3G0Z2TzELkiqeUrvXyENeQ

import java.util.*;

public class Main {
  /** Ticks default date 1970/1/1 0:0:0　*/
  private static long TICKS_AT_EPOCH = 621355968000000000L;
  /** Ticks変換用 */
  private static long TEN_THOUSAND = 10000L;

  public static void main(String[] args) throws Exception {
      
  // request ticks value
  long ticks = 637854553115230580L;
  long createDateTime = (ticks - TICKS_AT_EPOCH) / TEN_THOUSAND;

  // set Date Entity
  Date createDate = new Date(createDateTime);

  // set Calendar Entity
  Calendar calendar = Calendar.getInstance();
  calendar.setTime(createDate);

  // months
  int months = calendar.get(Calendar.MONTH) + 1;
  System.out.println(calendar.get(Calendar.YEAR) + "/" + months + "/" + calendar.get(Calendar.DAY_OF_MONTH) + "  "  + calendar.get(Calendar.HOUR) + ":"  + calendar.get(Calendar.MINUTE) + ":"  + calendar.get(Calendar.SECOND) );
  }
}