Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Sum of list with stream filter in Java
To get sum of list with stream filter in Java, the code is as follows −
Example
import java.util.*;
public class Demo
{
public static void main(String[] args)
{
List<Integer> my_list = new ArrayList<Integer>();
my_list.add(11);
my_list.add(35);
my_list.add(56);
my_list.add(78);
my_list.add(91);
System.out.println(sum(my_list));
}
public static int sum(List<Integer> my_list)
{
System.out.println("In the main function, the sum of list with filter is ");
return my_list.stream().filter(i -> i > 5).mapToInt(i -> i).sum();
}
}Output
In the main function, the sum of list with filter is 271
A class named Demo contains the main function that creates an ArrayList. Elements are added into the arraylist using the ‘add()’ function. The sum of all the elements of the list can be printed on the screen using the ‘sum’ function. Another function named ‘sum’ is defined that returns the filtered output by mapping the value to an integer.
Updated on: 13-Jul-2020
727 Views
Advertisements