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發表者： 冷日 發表時間： 2016/11/14 2:11:58
Java – How to get current date time – date() and calender()
By mkyong | December 24, 2009 | Updated : August 6, 2014 | Viewed : 1,965,056 times +8,288 pv/w
In Java, you can get the current date time via following two classes – Date and Calendar. And, later use SimpleDateFormat class to convert the date into a user friendly format.
1. Date() + SimpleDateFormat()
2. Calender() + SimpleDateFormat()
Review a full example to show you how to use Date() and Calender() classes to get and display the current date time.
Output
References
Date JavaDoc
Calendar JavaDoc
SimpleDateFormat JavaDoc
原文出處：https://www.mkyong.com/java/java-how-to-get-current-date-time-date-and-calender/">Java – How to get current date time – date() and calender()
By mkyong | December 24, 2009 | Updated : August 6, 2014 | Viewed : 1,965,056 times +8,288 pv/w
In Java, you can get the current date time via following two classes – Date and Calendar. And, later use SimpleDateFormat class to convert the date into a user friendly format.
1. Date() + SimpleDateFormat()
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
Date date = new Date();
System.out.println(dateFormat.format(date)); //2014/08/06 15:59:48
2. Calender() + SimpleDateFormat()
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
Calendar cal = Calendar.getInstance();
System.out.println(dateFormat.format(cal.getTime())); //2014/08/06 16:00:22
Review a full example to show you how to use Date() and Calender() classes to get and display the current date time.
GetCurrentDateTime.java
package com.mkyong;
import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
public class GetCurrentDateTime {
public static void main(String[] args) {
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
//get current date time with Date()
Date date = new Date();
System.out.println(dateFormat.format(date));
//get current date time with Calendar()
Calendar cal = Calendar.getInstance();
System.out.println(dateFormat.format(cal.getTime()));
}
}
Output
2014/08/06 16:06:54
2014/08/06 16:06:54
References
Date JavaDoc
Calendar JavaDoc
SimpleDateFormat JavaDoc
原文出處：https://www.mkyong.com/java/java-how-to-get-current-date-time-date-and-calender/">Java – How to get current date time – date() and calender()