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Tuesday 23 April 2013

Java code to find sum of given series using recursion : 1^2 + 2^2 + 3^2 +.......+ n^2

Java program to find the sum of the following series using recursion : 12 + 22 + 32 +.......+ n2

class Series
 public static void main(String args[]) throws IOException
 BufferedReader br = new BufferedReader(new InputStreamReader(;
 Series call = new Series();
 System.out.print("Enter value of n : ");
 int n = Integer.parseInt(br.readLine());
 System.out.println("Sum of series = " +call.sum(n));
 int sum(int n)
  return 1;
  return (n*n)+sum(n-1);


1. Start

2. Accept a number n from user.

3. Using method of recursion, add all the squared numbers upto n.

4. Print the sum.

5. End


Java code to find sum of given series using recursion

Enter value of n : 5

Sum of series = 55

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  1. What would be the code for 1^3+2^3+3^3+4^3...n^3 ?

  2. Ans mokal yaar.
    I need ans very much.


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