Driver code
public static void main ( String [ ] args ) { int a = 7 , N = 49 ; System . out . println ( " Sum ▁ of ▁ multiples ▁ of ▁ " + a + " ▁ up ▁ to ▁ " + N + " ▁ = ▁ " + calculate_sum ( a , N ) ) ; } }