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What is Duration.plusMillis() in Java?

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Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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The plusMillis() method

plusMillis() is an instance method of the Duration class which is used to add the specified duration to the Duration object in milliseconds.

Importing the Duration class

The plusMillis() method is defined in the Duration class. The Duration class is defined in the java.time package.

To import the Duration class check the following import statement.


import java.time.Duration;

Syntax


public Duration plusMillis(long millisToAdd)

Parameters

  • long millisToAdd: The number of milliseconds to add. This can be positive or negative.

Return value

This method returns a new instance of the Duration class with the number of milliseconds added.

Code

In the code below, we add 1000 milliseconds to the baseDuration object with the help of the plusMillis() method and print the new object to the console.

import java.time.Duration;
public class Main{
public static void main(String[] args) {
Duration baseDuration = Duration.ofSeconds(3);
int milliSecondsToAdd = 1000;
Duration newDuration = baseDuration.plusMillis(milliSecondsToAdd);
System.out.printf("%s + %s milliseconds = %s", baseDuration, milliSecondsToAdd, newDuration);
System.out.println();
}
}

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java
communitycreator

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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