Java 8 Streams - IntStream.mapToObj Examples

[Last Updated: Oct 30, 2025]

Interface:

java.util.stream.IntStream

Method:

<U> Stream<U> mapToObj(IntFunction<? extends U> mapper)

This intermediate operation returns an object-valued Stream consisting of the results of applying the given mapper function to the elements of this stream.

Examples

package com.logicbig.example.intstream;

import java.math.BigInteger;
import java.util.stream.IntStream;
import java.util.stream.Stream;

public class MapToObjExample {

    public static void main(String... args) {
        IntStream intStream = IntStream.range(1, 5);
        Stream<BigInteger> stream = intStream.mapToObj(BigInteger::valueOf);
        stream.forEach(b -> System.out.println(b.multiply(BigInteger.TEN)));
    }
}

Output

Java 8 Streams - IntStream.mapToObj Examples

Interface:

Method:

Examples

Output

See Also