Instant adjustInto() method in Java with Example ❤️

The adjustInto(Temporal temporal) method of Instant class adjusts the passed temporal object to have this instant on which this method is applied.

Syntax:

public Temporal adjustInto(Temporal temporal)

Parameters: This method accepts a parameter temporal which is the target temporal object to be adjusted. It should not be null.

Return Value: This method returns the adjusted temporal object.

Exception: This method throws following exceptions:

DateTimeException if this method is unable to make the adjustment.
ArithmeticException if numeric overflow occurs while adjusting.

Below programs illustrate the Instant.adjustInto() method:

Program 1:

// Java program to demonstrate 
// Instant.adjustInto() method 
  
import java.time.*; 
import java.time.temporal.Temporal; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
  
        // create an instance object 
        Instant instant 
            = Instant.parse("2018-11-20T16:55:30.00Z"); 
  
        // create a Temporal object 
        // which is equal to OffsetDateTime object 
        OffsetDateTime passTemporal 
            = OffsetDateTime.now(); 
  
        // print passed Value 
        System.out.println("Passed Value: "
                           + passTemporal); 
  
        // apply adjustInto method 
        // to adjust OffsetDateTime Temporal 
        // to instant object 
        Temporal returnTemporal 
            = instant.adjustInto(passTemporal); 
  
        // print results 
        System.out.println("Returned Value: "
                           + (OffsetDateTime)returnTemporal); 
    } 
} 

Output:

Passed Value: 2018-11-22T09:22:17.297Z
Returned Value: 2018-11-20T16:55:30Z

Program 2:

// Java program to demonstrate 
// Instant.adjustInto() method 
  
import java.time.*; 
import java.time.temporal.Temporal; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create an instance object 
        Instant instant 
            = Instant.parse("2018-11-17T06:50:39.00Z"); 
  
        // create a Temporal object 
        // which is equal to ZonedDateTime object 
        ZonedDateTime passTemporal 
            = ZonedDateTime.now(); 
  
        // print passed Value 
        System.out.println("Passed Value: "
                           + passTemporal); 
  
        // apply adjustInto method 
        // to adjust ZonedDateTime Temporal 
        // to instant object 
        Temporal returnTemporal 
            = instant.adjustInto(passTemporal); 
  
        // print results 
        System.out.println("Returned Value: "
                           + (ZonedDateTime)returnTemporal); 
    } 
} 

Output:

Passed Value: 2018-11-22T09:22:20.995Z[Etc/UTC]
Returned Value: 2018-11-17T06:50:39Z[Etc/UTC]

Program 3:

// Java program to demonstrate 
// Instant.adjustInto() method 
  
import java.time.*; 
import java.time.temporal.Temporal; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create an instance object 
        Instant instant 
            = Instant.parse("2017-11-01T16:25:00.00Z"); 
  
        // create a Temporal object 
        // which is equal to Instant object 
        // with current Instant 
        Temporal passTemporal 
            = Instant.now(); 
  
        // print passed Value 
        System.out.println("Passed Value: "
                           + passTemporal); 
  
        // apply adjustInto method to adjust Temporal 
        // to this instant object 
        Temporal returnTemporal 
            = instant.adjustInto(passTemporal); 
  
        // print results 
        System.out.println("Returned Value: "
                           + returnTemporal); 
    } 
} 

Output:

Passed Value: 2018-11-22T09:22:23.298Z
Returned Value: 2017-11-01T16:25:00Z

References: https://docs.oracle.com/javase/10/docs/api/java/time/Instant.html#adjustInto(java.time.temporal.Temporal)

Instant adjustInto() method in Java with Example

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