Java LocalTime of()

In this guide, you will learn about the LocalTime of() method in Java programming and how to use it with an example.

1. LocalTime of() Method Overview

Definition:

The of() method of the LocalTime class in Java is used to obtain an instance of LocalTime representing a specific time of day. This method can be used to create a LocalTime object with a specified hour, minute, second, and nanosecond.

Syntax:

public static LocalTime of(int hour, int minute)
public static LocalTime of(int hour, int minute, int second)
public static LocalTime of(int hour, int minute, int second, int nanoOfSecond)

Parameters:

- hour: the hour-of-day to represent, from 0 to 23.

- minute: the minute-of-hour to represent, from 0 to 59.

- second: the second-of-minute to represent, from 0 to 59 (default value is 0).

- nanoOfSecond: the nano-of-second to represent, from 0 to 999,999,999 (default value is 0).

Key Points:

- The of() method can be used to create a LocalTime object representing a specific time of day.

- The method has multiple overloaded versions, allowing you to specify hour, minute, second, and nanosecond.

- All the parameters are optional except for hour and minute, and if not provided, they default to 0.

- If the parameters are out of valid ranges, a DateTimeException is thrown.

2. LocalTime of() Method Example

import java.time.LocalTime;

public class LocalTimeOfExample {
    public static void main(String[] args) {
        // Create a LocalTime object representing 14:05:30.123456789
        LocalTime specificTime = LocalTime.of(14, 5, 30, 123456789);

        // Print the created LocalTime object
        System.out.println("Specific Local Time: " + specificTime);
    }
}

Output:

Specific Local Time: 14:05:30.123456789

Explanation:

In this example, we use the LocalTime.of() method to create a LocalTime object representing the specific time 14:05:30.123456789. We pass the hour, minute, second, and nanosecond as parameters to the of() method. The created LocalTime object is then printed to the console, displaying the specific time we set.