Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

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

Stream ofNullable(T) method in Java with examples

Last Updated : 11 Jul, 2025

The

method returns a sequential

containing a single element if this stream is non-null otherwise method returns an empty Stream. It helps to handle the null stream and

.

static <T> Stream<T> ofNullable(T t)

This method accepts a single parameter

which is the single element of which the Stream is to be returned.

This method returns a

with a single element if the specified element is non-null, otherwise an empty stream. Below programs illustrate ofNullable(T) method:

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

import java.util.stream.Stream;
public class GFG {

    public static void main(String[] args)
    {

        // Create a stream with null
        Stream<String> value
            = Stream.ofNullable(null);

        // Print values
        System.out.println("Values of Stream:");
        value.forEach(System.out::println);
    }
}

The output printed on console of IDE is shown below.

// Java program to demonstrate
// Stream.ofNullable method

import java.util.ArrayList;
import java.util.stream.Stream;
public class GFG {

    public static void main(String[] args)
    {

        // Create ArrayList containing names
        ArrayList<String> list = new ArrayList<String>();
        list.add("Aman");
        list.add("Suraj");
        list.add("Zufaq");

        // create a stream with ArrayList
        Stream<ArrayList<String> > value
            = Stream.ofNullable(list);

        // print values
        System.out.println("Values of Stream:");
        value.forEach(System.out::println);
    }
}

The output printed on console is shown below.

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4