Timestamp Operation in Java

JDBC escape syntax is supported by Timestamp's formatting and parsing functions. Additionally, it adds support for fractional seconds values for SQL TIMESTAMP.java.util.Date is wrapped in a lightweight wrapper that enables the JDBC API to recognise this as a SQL TIMESTAMP value.

Methods	Description
after ( )	If this Timestamp object is later than the given Timestamp object, it returns the Boolean value true or else false.
before ( )	If this Timestamp object is earlier than the given Timestamp object, then this function  returns the Boolean value true or else false
to ( )	Timestamp object is compared to the supplied timestamp object or the given date object using the to ( ) function
Equal ( )	If this Timestamp object is equal to the given Timestamp object or to the specified object, it returns the Boolean value true or else false.
From ( )	Provides a Timestamp instance from an Instant object.
getNanos ( )	Retrieves the nanos value of the Timestamp object.
getTime ( )	The amount of milliseconds that have passed since January 1, 1970, 00:00:00 GMT.
hashCode ( )	For this object set, returns a hash code result.
Nanos ( )	The function nanos ( ) creates a nanos value for the given integer value.
setTime ( )	Sets the object of this class to a millisecond of time (after January 1, 1970 00:00:00 GMT).
toInstant ( )	the Instant that results from the conversion of the Timespan object to toInstant ( ) represents the same time point as this timestamp.
toLocalDateTime ( )	This will return the same date-time value as this Timestamp, converts this Timespan object into a LocalDateTime.
toString ( )	Timespan object is transformed using JDBC timestamp escape format via function toString ( )
valueOf ( )	function valueOf ( ) creates a Timestamp value from a string object or extracts a Timestamp instance from a LocalDateTime object.

TimeStamp.java

import java . sql . Timestamp ;  
import java . time . Instant ;  
// public class
public class TimeStamp {  
    public static void main ( String [ ] args ) {  
      // Gets a Timestamp instance from an Instant object by from () method  
       Timestamp in= Timestamp . from ( Instant . now ( ) ) ;  
        System . out . println ( " 1. from() method will return "+ in ) ;  
        // function valueOf ( ) creates a Timestamp value from a string object or extracts a Timestamp instance from a LocalDateTime object. 
        String s1 ="2018-09-01 09:01:15";  
        Timestamp tp = Timestamp . valueOf ( s1 ) ;  
        System . out . println ( " 2 . value of Timestamp : "+ tp ) ;  
        // getNanos() Retrieves the nanos value of the Timestamp object.  
        Integer v= tp . getNanos ( ) ;  
        System . out . println ( " 3 . Fractional seconds component : "+ v ) ;  
        Timestamp ts = Timestamp . valueOf ( " 2018-09-01 09:01:16 " ) ;  
        System . out . println ( "4. Boolean value returned : " + tp . before ( ts ) ) ;  
    }  
}  

Output

TimeStamp2.java

import java . sql . * ;  
import java . time . Instant ;  
public class Time Stamp2 {  
    public static void main ( String [ ] args ) {  
        Timestamp t1 = Timestamp . valueOf ( "2018-09-01 09:01:15");  
        System . out . println("Timestamp : "+ t1 ) ;  
       // getTime ( ) The amount of milliseconds that have passed since January 1, 1970, 00:00:00 GMT.
        Long val= t1 . getTime ( ) ;  
        System.out.println("1. Milliseconds : "+val);  
        // hashCode() For this object set, returns a hash code result. 
        Integer v1=t1 . hashCode ( ) ;  
        System . out . println ( " 2. Hash code : "+ v1 ) ;  
        // setNanos()   
        t1 . setNanos ( 54646 ) ;  
        System . out . println ( "3 . Timestamp after setting nanos : " + t1 ) ;  
        // the Instant that results from the conversion of the Timespan object to toInstant ( ) represents the same time point as this timestamp.
        Instant in = t1.toInstant ( ) ;  
        System . out . println ( " 4. Instant Timespan : " + in ) ;  
    }  
}

Output