DoubleStream boxed() in Java with Examples
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 :
import java.util.*;
import java.util.stream.Stream;
import java.util.stream.DoubleStream;
class GFG {
public static void main(String[] args)
{
DoubleStream stream = DoubleStream.of( 3.2 , 8.4 , 3.6 , 4.7 );
Stream<Double> stream1 = stream.boxed();
stream1.forEach(System.out::println);
}
}
|
Output :
3.2
8.4
3.6
4.7
Example 2 :
import java.util.*;
import java.util.stream.Stream;
import java.util.stream.DoubleStream;
class GFG {
public static void main(String[] args)
{
DoubleStream stream = DoubleStream.of( 3.2 , 8.4 , 3.6 , 4.7 );
Stream<Double> stream1 = stream.boxed();
Stream<Object> stream2 = Stream.concat(stream1,
Stream.of( "Geeks" , "for" , "Geeks" ));
stream2.forEach(System.out::println);
}
}
|
Output :
3.2
8.4
3.6
4.7
Geeks
for
Geeks
Last Updated :
06 Dec, 2018
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