In this tutorial, we will learn Java 8 Stream noneMatch() terminal operation with an example.

The Java Stream noneMatch() method is a terminal operation that will iterate the elements in the stream and return true or false, depending on whether no elements in the stream match the Predicate passed to noneMatch() as the parameter. 

The noneMatch() method will return true if no elements are matched by the Predicate, and false if one or more elements are matched. 

Java Stream noneMatch() Example

Here is a Java Stream noneMatch() example:

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Stream;

public class Main {
    public static void main(String[] args)
    {
        List<String> stringList = new ArrayList<String>();

        stringList.add("john");
        stringList.add("tom");

        Stream<String> stream = stringList.stream();

        boolean noneMatch = stream.noneMatch((element) -> {
            return "Ramesh".equals(element);
        });

        System.out.println("noneMatch = " + noneMatch);

    }
}

Output:

noneMatch = true

Java Stream Methods/APIs Examples

1. Java Stream filter() Example
2. Java Stream map() Example
3. Java Stream flatMap() Example
4. Java Stream distinct() Example
5. Java Stream limit() Example
6. Java Stream peek() Example
7. Java Stream anyMatch() Example
8. Java Stream allMatch() Example
9. Java Stream noneMatch() Example
10. Java Stream collect() Example
11. Java Stream count() Example
12. Java Stream findAny() Example
13. Java Stream findFirst() Example
14. Java Stream forEach() Example
15. Java Stream min() Example
16. Java Stream max() Example
17. Java Stream reduce() Example
18. Java Stream toArray() Example