Sum of the series 2 + ( 2 + 4 ) + ( 2 + 4 + 6 ) + ( 2 + 4 + 6 + 8 ) + …… + ( 2 + 4 + 6 + 8 + … . + 2 n ) | Java implementation to find the sum of the given series ; function to find the sum of the given series ; first term of each i - th term ; next term ; required sum ; Driver program to test above
class GFG { static int sumOfTheSeries ( int n ) { int sum = 0 ; for ( int i = 1 ; i <= n ; i ++ ) { int k = 2 ; for ( int j = 1 ; j <= i ; j ++ ) { sum += k ; k += 2 ; } } return sum ; } public static void main ( String [ ] args ) { int n = 5 ; System . out . printf ( " Sum ▁ = ▁ % d " , sumOfTheSeries ( n ) ) ; } }