In this article, you are going to learn how to get current date and time in java programming language.
The availability of Date class in the java.util package enables a programmer to easily get current date and time wherever needed. It includes several methods through which you can access the current date and time.
Also Read:- Regular Expressions in Java Programming Language
It also includes formatting methods to format date and time which we will discuss later in this article.
We have listed below some of the classes and methods used to get current date and time in java programming language.
- toString() Method
- java.util.Date Class
- java.time.LocalDate Class
- java.time.LocalTime Class
- java.time.LocalDateTime Class
[1] TOSTRING() METHOD
Example:
class DateTimeExample {
public static void main(String args[]) {
Date date = new Date() ;
System.out.println(date.toString()) ;
}
}
Output:
Tue Jun 06 06:38:32 GMT 2017
[2] JAVA.UTIL.DATE CLASS
Example:
class DateTimeExample {
public static void main(String args[]) {
java.util.Date date = new java.util.Date() ;
System.out.println(date) ;
}
}
Output:
Tue Jun 06 06:46:56 GMT 2017
[3] JAVA.TIME.LOCALDATE CLASS
Example:
class LocalDate {
public static void main(String [] args) {
System.out.println(“Current Date is :” + java.time.LocalDate.now()) ;
}
}
Output:
Current Date is : 2017-06-06
[4] JAVA.TIME.LOCALTIME CLASS
Example:
class LocalTime {
public static void main(String [] args) {
System.out.println(“Current Time is :“ + java.time.LocalTime.now()) ;
}
}
Output:
Current Time is : 06:57:46.618
[5] JAVA.TIME.LOCALDATETIME CLASS
Example:
class LocalDateTime {
public static void main(String [] args) {
System.out.println(“Current Date and Time is :“ + java.time.LocalDateTime.now()) ;
}
}
Output:
Current Date and Time is :2017-06-06T07:08:07.476
DATE AND TIME FORMATTING IN JAVA
We have shown below two methods to format date and time in java programming language.
(1) SIMPLEDATEFORMAT METHOD
Example:
class DateFormat {
public static void main(String args[]) {
Date date = new Date( ) ;
SimpleDateFormat dateft = new SimpleDateFormat (“G dd.MM.yyyy hh:mm:ss a”) ;
System.out.println(“Current Date and Time : “ + dateft.format(date)) ;
}
}
Output:
Current Date and Time: AD 07.06.2017 08:04:44 AM
(2) PRINTLN METHOD
Example:
class DateFormat {
public static void main(String args[]) {
Date date = new Date() ;
String st = String.format(“Current Date : %tD”, date ) ;
System.out.printf(st) ;
}
}
Output:
Current Date : 06/07/17
DATE/ TIME FORMATTING CODES
| a d
D E G h H m M s y w W z | A.M/P.M Day in Month
Day in Year Day in Week Era Determiner(AD/BC) Hour(AM/PM) Hour(Day) Minute in hour Month in year Seconds in minutes Year(four digits) Week in year Week in month Time Zone |
DATE/ TIME CONVERSION CODES
| a b
B c C D e F H I j k L m M N P p Q r R s S T y Y z Z | Week day(three letter) Month(three letter)
Month(full) Date and Time(full) Year(first two digits) Date(mon/day/year) Day(two digit,no leading zeroes) Date(ISO 8601) Hour(two digit, leading zeroes, 00-23) Hour(two digit, leading zeroes, 01-12) Day of Year(three digit, leading zeroes) Hour(two digit, no leading zeroes, 0-23) Milliseconds(three digits, leading zeroes) Month(two digit, leading zeroes) Minutes(two digits, leading zeroes) Nanoseconds(nine digit, leading zeroes) AM/PM(uppercase) AM/PM(lowercase) Milliseconds(since 1970-01-01 00:00:00 GMT) Time(12-hour, with seconds) Time(24-hour, no seconds) Seconds(since 1970-01-01 00:00:00 GMT) Seconds(two digit, leading zeroes) Time(24-hour, with seconds) Year(last two digits, leading zeroes) Year(four digit, leading zeroes) RFC 822 numeric offset(GMT) Time Zone |
Also Read: Nested Classes in Java Programming Language
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