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# Java Program to calculate Sum of squares of first n natural numbers

To calculate the sum of squares of first n natural numbers, the Java code is as follows −

## Example

import java.io.*; import java.util.*; public class Demo{ public static int sum_of_squares(int val){ return (val * (val + 1) / 2) * (2 * val + 1) / 3; } public static void main(String[] args){ int val = 8; System.out.println("The sum of squares of first 8 natural numbers is "); System.out.println(sum_of_squares(val)); } }

## Output

The sum of squares of first 8 natural numbers is 204

A class named Demo contains a function named ‘sum_of_squares’. This function is used to add up the first ‘n’ natural numbers. This returns the sum of the numbers. In the main function, a value for ‘n’ is defined and the function is called with this ‘n’ value. Relevant output is displayed on the console.

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