Java Streams - LongStream mapToObj(LongFunction mapper) example








LongStream mapToObj(LongFunction<? extends U> mapper) returns an object-valued Stream consisting of the results of applying the given function. This is an intermediate operation.

Syntax

mapToObj has the following syntax.

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

Example

The following example shows how to use mapToObj.

import java.util.stream.LongStream;

public class Main {
  public static void main(String[] args) {
    LongStream b = LongStream.of(1L, 2L, Long.MAX_VALUE, Long.MIN_VALUE);

    b.mapToObj(n -> {return n+" values";}).forEach(System.out::println);
  }
}

The code above generates the following result.