LongStream asDoubleStream() in Java Last Updated : 06 Dec, 2018 Comments Improve Suggest changes Like Article Like Report LongStream asDoubleStream() returns a DoubleStream consisting of the elements of this stream, converted to double. This is an intermediate operation. Intermediate operations are invoked on a Stream instance and after they finish their processing, they give a Stream instance as output. Syntax : DoubleStream asDoubleStream() Where, DoubleStream is a sequence of primitive double-valued element. Return Value : LongStream asDoubleStream() returns a DoubleStream consisting of the elements of this stream, converted to double. Example 1 : Java // Java code for DoubleStream asDoubleStream() // to return a DoubleStream consisting of // the elements of this stream import java.util.*; import java.util.stream.LongStream; import java.util.stream.DoubleStream; class GFG { // Driver code public static void main(String[] args) { // Creating a LongStream LongStream stream = LongStream.of(3L, 5L, 9L, 12L, 14L); // Using DoubleStream asDoubleStream() DoubleStream stream1 = stream.asDoubleStream(); // Displaying DoubleStream consisting of // the elements of this stream stream1.forEach(System.out::println); } } Output : 3.0 5.0 9.0 12.0 14.0 Example 2 : Java // Java code for DoubleStream asDoubleStream() // to return a DoubleStream consisting of // the elements of this stream import java.util.*; import java.util.stream.LongStream; import java.util.stream.DoubleStream; class GFG { // Driver code public static void main(String[] args) { // Creating an LongStream and using asDoubleStream() DoubleStream stream = LongStream.range(3L, 8L) .asDoubleStream(); // Displaying DoubleStream consisting of // the elements of this stream stream.forEach(System.out::println); } } Output : 3.0 4.0 5.0 6.0 7.0 Example 3 : Java // Java code for DoubleStream asDoubleStream() // to return a DoubleStream consisting of // the elements of this stream import java.util.*; import java.util.stream.LongStream; import java.util.stream.DoubleStream; class GFG { // Driver code public static void main(String[] args) { // Creating a LongStream and using asDoubleStream() // to display the elements of LongStream and // DoubleStream together DoubleStream stream = LongStream.range(3L, 8L) .peek(System.out::println) .asDoubleStream(); // Displaying DoubleStream consisting of // the elements of this stream stream.forEach(System.out::println); } } Output : 3 3.0 4 4.0 5 5.0 6 6.0 7 7.0 Comment More infoAdvertise with us S Sahil_Bansall Follow Improve Article Tags : Java Practice Tags : Java Similar Reads Java Tutorial Java is a high-level, object-oriented programming language used to build web apps, mobile applications, and enterprise software systems. 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