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Showing content from https://www.geeksforgeeks.org/java/optional-ofnullable-method-in-java-with-examples/ below:

Optional ofNullable() method in Java with examples

Last Updated : 12 Jul, 2025

The

ofNullable()

method of

java.util.Optional class

in Java is used to get an instance of this Optional class with the specified value of the specified type. If the specified value is null, then this method returns an empty instance of the Optional class.

Syntax:

public static <T>
  Optional<T> ofNullable(T value)

Parameters:

This method accepts

value

as parameter of type T to create an Optional instance with this value. It can be null.

Return value:

This method returns an

instance

of this Optional class with the specified value of the specified type. If the specified value is null, then this method returns an empty instance of the Optional class. Below programs illustrate ofNullable() method:

Program 1: Java


 // Java program to demonstrate
// Optional.ofNullable() method

import java.util.*;

public class GFG {

    public static void main(String[] args)
    {

        // create a Optional
        Optional<Integer> op1
            = Optional.ofNullable(9455);

        // print value
        System.out.println("Optional 1: "
                           + op1);
    }
}

Output:

Optional 1: Optional[9455]

Program 2: Java


 // Java program to demonstrate
// Optional.ofNullable() method

import java.util.*;

public class GFG {

    public static void main(String[] args)
    {
        // create a Optional
        Optional<String> op2
            = Optional.ofNullable(null);

        // print value
        System.out.println("Optional 2: "
                           + op2);
    }
}

Output:

Optional 2: Optional.empty

Reference: https://docs.oracle.com/javase/9/docs/api/java/util/Optional.html#ofNullable-T-

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