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The plusMillis() method in Java, part of the java.time.Duration class, is used to add a specified number of milliseconds to a Duration instance. This method is useful for calculating durations that are a specified number of milliseconds longer than the original duration.
Table of Contents
- Introduction
plusMillis()Method Syntax- Understanding
plusMillis() - Examples
- Basic Usage
- Handling Negative and Large Millisecond Values
- Real-World Use Case
- Conclusion
Introduction
The plusMillis() method allows you to add a specified number of milliseconds to an existing Duration instance. This is particularly useful when you need to adjust a duration by a specific number of milliseconds, such as extending an interval or adding additional milliseconds to a task.
plusMillis() Method Syntax
The syntax for the plusMillis() method is as follows:
public Duration plusMillis(long millisToAdd)
Parameters:
millisToAdd: The number of milliseconds to add, which can be positive or negative.
Returns:
- A
Durationthat is the result of adding the specified number of milliseconds to the original duration.
Throws:
- This method does not throw any exceptions.
Understanding plusMillis()
The plusMillis() method creates a new Duration instance by adding the specified number of milliseconds to the original duration. The result is a new Duration object representing the adjusted time span.
Examples
Basic Usage
To demonstrate the basic usage of plusMillis(), we will add a specified number of milliseconds to an existing Duration instance.
Example
import java.time.Duration;
public class DurationPlusMillisExample {
public static void main(String[] args) {
Duration originalDuration = Duration.ofSeconds(10);
Duration addedDuration = originalDuration.plusMillis(5000);
System.out.println("Original duration: " + originalDuration);
System.out.println("Added duration: " + addedDuration);
}
}
Output:
Original duration: PT10S
Added duration: PT15S
Handling Negative and Large Millisecond Values
This example shows how to use plusMillis() to handle negative and large millisecond values.
Example
import java.time.Duration;
public class NegativeAndLargeMillisExample {
public static void main(String[] args) {
Duration duration = Duration.ofSeconds(10);
// Add a negative number of milliseconds
Duration negativeResult = duration.plusMillis(-2000);
System.out.println("After adding -2000 milliseconds: " + negativeResult);
// Add a large number of milliseconds
Duration largeResult = duration.plusMillis(15000);
System.out.println("After adding 15000 milliseconds: " + largeResult);
}
}
Output:
After adding -2000 milliseconds: PT8S
After adding 15000 milliseconds: PT25S
Real-World Use Case
Adjusting Time Intervals
In real-world applications, the plusMillis() method can be used to adjust time intervals, such as adding additional milliseconds to a task or extending a delay by a certain number of milliseconds.
Example
import java.time.Duration;
public class TimeIntervalAdjustmentExample {
public static void main(String[] args) {
Duration originalDuration = Duration.ofMillis(20000);
long extraMillis = 5000;
// Extend the original duration by adding extra milliseconds
Duration extendedDuration = originalDuration.plusMillis(extraMillis);
System.out.println("Original duration: " + originalDuration);
System.out.println("Extended duration: " + extendedDuration);
}
}
Output:
Original duration: PT20S
Extended duration: PT25S
Conclusion
The Duration.plusMillis() method is used to add a specified number of milliseconds to a Duration instance. This method is particularly useful for adjusting durations by a specific number of milliseconds. By understanding and using this method, you can effectively manage and manipulate time-based data in your Java applications.
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