DoubleStream boxed() returns a Stream consisting of the elements of this stream, each boxed to a Double.
Note : DoubleStream boxed() is a intermediate operation. These operations are always lazy. Intermediate operations are invoked on a Stream instance and after they finish their processing, they give a Stream instance as output.
Syntax :
Stream<Double> boxed()
Parameters :
- Stream : A sequence of elements supporting sequential and parallel aggregate operations.
- Double : The Double class wraps a value of the primitive type double in an object. An object of type Double contains a single field whose type is double.
Return Value : The function returns a Stream boxed to a Double.
Example 1 :
// Java code for DoubleStream boxed()import java.util.*;import java.util.stream.Stream;import java.util.stream.DoubleStream; class GFG { // Driver code public static void main(String[] args) { // Creating an DoubleStream DoubleStream stream = DoubleStream.of(3.2, 8.4, 3.6, 4.7); // Creating a Stream of Doubles // Using DoubleStream boxed() to return // a Stream consisting of the elements // of this stream, each boxed to a Double. Stream<Double> stream1 = stream.boxed(); // Displaying the elements stream1.forEach(System.out::println); }} |
Output :
3.2 8.4 3.6 4.7
Example 2 :
// Java code for DoubleStream boxed()import java.util.*;import java.util.stream.Stream;import java.util.stream.DoubleStream; class GFG { // Driver code public static void main(String[] args) { // Creating an DoubleStream DoubleStream stream = DoubleStream.of(3.2, 8.4, 3.6, 4.7); // Creating a Stream of Doubles // Using DoubleStream boxed() to return // a Stream consisting of the elements // of this stream, each boxed to a Double. Stream<Double> stream1 = stream.boxed(); Stream<Object> stream2 = Stream.concat(stream1, Stream.of("Geeks", "for", "Geeks")); // Displaying the elements stream2.forEach(System.out::println); }} |
Output :
3.2 8.4 3.6 4.7 Geeks for Geeks
