- SimpleDateFormat.format把date轉成String
- SimpleDateFormat.parse把String轉成date
package basic;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class 日期格式SimpleDataFormat {
public static void main(String[] args) {
Date now = new Date();
System.out.println(now.toString());
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String formatString = simpleDateFormat.format(now);
System.out.println("formatString:" + formatString);
String string = "2020-03-29 23:40:37";
try {
Date parseDate = simpleDateFormat.parse(string);
System.out.println("日期時間對象:" + parseDate + " 時間戳: " + parseDate.getTime());
} catch (ParseException e) {
e.printStackTrace();
}
}
}
Tue Mar 31 20:58:09 CST 2020
formatString:2020-03-31 20:58:09
日期時間對象:Sun Mar 29 23:40:37 CST 2020 時間戳: 1585496437000