Close

Java 8 Streams - Stream.toArray Examples

[Last Updated: Nov 8, 2025]

Java 8 Streams Java Java API 

PreviousNext

Interface:

java.util.stream.Stream

java.lang.AutoCloseableAutoCloseablejava.util.stream.BaseStreamBaseStreamjava.util.stream.StreamStreamLogicBig

Methods:

Object[] toArray()

This terminal operation returns an array containing the elements of this stream. 



<A> A[] toArray(IntFunction<A[]> generator)

This terminal operation returns an array containing the elements of this stream, using the provided generator function to allocate the returned array.


Examples


package com.logicbig.example.stream;

import java.util.Arrays;
import java.util.stream.Stream;

public class ToArrayExample {

    public static void main(String... args) {
        Stream<String> stream = Stream.of("one", "two", "three", "four");
        Object[] objects = stream.toArray();
        System.out.println(Arrays.toString(objects));
    }
}

Output

[one, two, three, four]




package com.logicbig.example.stream;

import java.util.Arrays;
import java.util.stream.Stream;

public class ToArrayExample2 {

    public static void main(String... args) {
        String[] strings = Stream.of("one", "two", "three", "four")
                                 .filter(s -> s.startsWith("t"))
                                 .toArray(String[]::new);
        System.out.println(Arrays.toString(strings));
    }
}

Output

[two, three]

See Also