IntStream sum() method in Java

The sum() method of the IntStream class is used in Java to return the sum of elements in this stream.

The syntax is as follows −

int sum()

To work with the IntStream class in Java, import the following package −

import java.util.stream.IntStream;

Create IntStream and add some elements −

IntStream intStream = IntStream.of(50, 100, 150, 200, 250, 300);

Now, return the sum of elements in the IntStream added above −

int sumVal = intStream.sum();

The following is an example to implement IntStream sum() method in Java −

Example

 Live Demo

import java.util.stream.IntStream;

public class Demo {
   public static void main(String[] args) {
      IntStream intStream = IntStream.of(50, 100, 150, 200, 250, 300);
      int sumVal = intStream.sum();
      System.out.println("Sum of elements in the stream = "+sumVal);
   }
}

Output

Sum of elements in the stream = 1050

Smita Kapse

Updated on: 30-Jul-2019

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