Java Instant Class | truncatedTo() Method with Example

Instant Class truncatedTo() method: Here, we are going to learn about the truncatedTo() method of Instant Class with its syntax and example.
Submitted by Preeti Jain, on May 28, 2020

Instant Class truncatedTo() method

  • truncatedTo() method is available in java.time package.
  • truncatedTo() method is used to get an Instant that holds the value of this Instant truncated to the given unit.
  • truncatedTo() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
  • truncatedTo() method may throw an exception at the time of truncating.
    • DateTimeException: This exception may throw when the given unit can't truncate due to an invalid unit.
    • UnsupportedTemporlTypeException: This exception may throw when the given unit is unsupported.

Syntax:

    public Instant truncatedTo(TemporalUnit t_unit);

Parameter(s):

  • TemporalUnit t_unit – represents the unit to truncate from this Instant.

Return value:

The return type of this method is Instant, it returns the Instant that holds the value truncated the given unit from this Instant.

Example:

// Java program to demonstrate the example // of truncatedTo(TemporalUnit t_unit) method // of Instant import java.time.*; import java.time.temporal.*; public class TruncatedToOfInstant { public static void main(String args[]) { // Instantiates two Instant Instant ins1 = Instant.parse("2006-04-03T05:10:15.60Z"); Instant ins2 = Instant.now(); // Display ins1,ins2 System.out.println("Instant ins1 and ins2: "); System.out.println("ins1: " + ins1); System.out.println("ins2: " + ins2); System.out.println(); // Here, this method truncates the given // unit from this Instant i.e. here // we are truncating SECONDS unit // from this Instant ins1 Instant ins = ins1.truncatedTo(ChronoUnit.SECONDS); // Display ins System.out.println("ins1.truncatedTo(ChronoUnit.SECONDS): " + ins); // Here, this method truncates the given // unit from this Instant i.e. here // we are truncating MINUTES unit // from this Instant ins2 ins = ins2.truncatedTo(ChronoUnit.MINUTES); // Display ins System.out.println("ins2.truncatedTo(ChronoUnit.MINUTES): " + ins); } }

Output

Instant ins1 and ins2: 
ins1: 2006-04-03T05:10:15.600Z
ins2: 2020-05-27T06:11:43.033792Z

ins1.truncatedTo(ChronoUnit.SECONDS): 2006-04-03T05:10:15Z
ins2.truncatedTo(ChronoUnit.MINUTES): 2020-05-27T06:11:00Z


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