Find the sum of series 1+(1+2) + (1+2+3) +… (1+2+3+…n)

In this program you will learn to create the 1+(1+2) + (1+2+3) +… (1+2+3+…n) sum of series using java programming.

Program code to Find the sum of series

//Find the sum of series 1+(1+2) + (1+2+3) +… (1+2+3+…n).

import java.util.Scanner;

public class SumofSeries1{

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

//input number of strings from user

System.out.print("Input the value of n : ");

int n = scanner.nextInt();

scanner.nextLine();

int i,j,t=0;

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

{

t=t+j;

}

System.out.println("Sum of series is :"+ t);

}

Output

C:\CodeRevise\java>javac SumofSeries1.java

C:\CodeRevise\java>java SumofSeries1
Input the value of n : 4
Sum of series is :20

C:\CodeRevise\java>java SumofSeries1
Input the value of n : 8
Sum of series is :120