DoubleStream empty() method in Java

The empty() method of the DoubleStream class in Java returns an empty sequential DoubleStream.

The syntax is as follows:

static DoubleStream empty()

To use the DoubleStream class in Java, import the following package:

import java.util.stream.DoubleStream;

Let us create an empty DoubleStream:

DoubleStream doubleStream = DoubleStream.empty();

Now, let us check the number of elements in the stream. It will be 0, since the stream is set to empty:

doubleStream.count()

The following is an example to implement DoubleStream empty() method in Java:

Example

 Live Demo

import java.util.stream.DoubleStream;
public class Demo {
   public static void main(String[] args) {
      DoubleStream doubleStream = DoubleStream.empty();
      System.out.println("Number of elements in the stream = "+doubleStream.count());
   }
}

Here is the output. The result is 0 since the stream is set to empty:

Number of elements in the stream = 0