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LongStream sum() method in Java
The sum() method of the LongStream class returns the sum of elements in this stream.
The syntax is as follows
long sum()
To use the LongStream class in Java, import the following package
import java.util.stream.LongStream;
First, create an IntStream and add some elements
LongStream longStream = LongStream.of(100L, 30000L, 45000L, 55000L, 70000L);
Now, add the elements of the stream
long res = longStream.sum();
The following is an example to implement LongStream sum() method in Java
Example
import java.util.stream.LongStream; public class Demo { public static void main(String[] args) { LongStream longStream = LongStream.of(100L, 30000L, 45000L, 55000L, 70000L); long res = longStream.sum(); System.out.println("The sum of elements in the stream = "+res); } }
Output
The sum of elements in the stream = 200100
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