Duration plus(Duration) method in Java with Examples

Last Updated : 26 Nov, 2018

The plus(Duration) method of Duration Class in java.time package is used to get an immutable copy of this duration with the specified duration added, passed as the parameter.

Syntax:

public Duration plus(Duration duration)

Parameters: This method accepts a parameter duration which is the duration to be added. It can be positive or negative but not null.

Return Value: This method returns a Duration which is an immutable copy of the existing duration with the parameter amount of duration added to it.

Exception: This method throws ArithmeticException if numeric overflow occurs.

Below examples illustrate the Duration.plus() method:

Example 1:

// Java code to illustrate plus() method 
  
import java.time.Duration; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // Duration 1 using parse() method 
        Duration duration1 
            = Duration.parse("P2DT3H4M"); 
  
        // Duration 2 using ofHours() method 
        Duration duration2 
            = Duration.ofHours(5); 
  
        // Get the duration added 
        // using plus() method 
        System.out.println(duration1 
                               .plus(duration2)); 
    } 
} 

Output:

PT56H4M

Example 2:

// Java code to illustrate plus() method 
  
import java.time.Duration; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // Duration 1 using parse() method 
        Duration duration1 
            = Duration.parse("P0DT0H4M"); 
  
        // Duration 2 using ofHours() method 
        Duration duration2 
            = Duration.ofDays(5); 
  
        // Get the duration added 
        // using plus() method 
        System.out.println(duration1 
                               .plus(duration2)); 
    } 
} 