LocalDateTime of(date, time) method in Java with Examples

The of(LocalDate date, LocalTime time) method of LocalDateTime class in Java is used to obtain an instance of LocalDateTime using the two input parameters, date and time. Initially, two separate instances are created. One is of LocalDate type and the other one is of LocalTime type. Then these are merged to create a LocalDateTime.

Syntax:

public static LocalDateTime of(LocalDate date, 
                               LocalTime time)

Parameters: This method accepts two parameters:

• date– It is of LocalDate type and represents the local date.
• time– It is of LocalTime type and represents the local time.

Return Value: This method returns the localdate-time.

Exceptions: This method does not throw any exception.

Below programs illustrate the of(LocalDate date, LocalTime time) method in Java:

Program 1:

// Java program to demonstrate
// LocalDateTime.of(LocalDate date,
// LocalTime time) method

import java.time.*;
import java.time.temporal.*;

public class GFG {
    public static void main(String[] args)
    {
        // Create LocalDate object
        // using LocalDate.of() method
        LocalDate date
            = LocalDate.of(2020, 5, 13);

        // Create LocalTime object
        // using LocalTime.of() method
        LocalTime time = LocalTime.of(6, 30);

        // Create LocalDateTime object
        LocalDateTime localdatetime
            = LocalDateTime.of(date, time);

        // Print full date and time
        System.out.println(
            "DateTime: " + localdatetime);
    }
}

Output:

DateTime: 2020-05-13T06:30

Program 2:

// Java program to demonstrate
// LocalDateTime.of(LocalDate date,
// LocalTime time) method

import java.time.*;
import java.time.temporal.*;

public class GFG {
    public static void main(String[] args)
    {
        // Create LocalDate object
        // using LocalDate.of() method
        LocalDate date
            = LocalDate.of(2019, 12, 31);

        // Create LocalTime object
        // using LocalTime.of() method
        LocalTime time = LocalTime.of(6, 30, 45);

        // Create LocalDateTime object
        LocalDateTime localdatetime
            = LocalDateTime.of(date, time);

        // Print full date and time
        System.out.println(
            "DateTime: " + localdatetime);
    }
}

Output:

DateTime: 2019-12-31T06:30:45

References:
https://docs.oracle.com/javase/10/docs/api/java/time/LocalDateTime.html#of(java.time.LocalDate, java.time.LocalTime)