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) );
}
}
