Java Streams - DoubleStream map(DoubleUnaryOperator mapper) example

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DoubleStream map(DoubleUnaryOperator mapper) returns a stream by applying the given function to the elements of this stream. This is an intermediate operation.

Syntax

map has the following syntax.

DoubleStream map(DoubleUnaryOperator mapper)

Example

The following example shows how to use map.

import java.util.stream.DoubleStream;

public class Main {
  public static void main(String[] args) {
    DoubleStream b = DoubleStream.of(1.1,2.2,3.3,4.4,5.5);
    b.map(n -> n*n).forEach(System.out::println);
  }
}

The code above generates the following result.

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