Question

Write a program to find the sum of the following series
a)
X+2x+3x+4x+.
...nx.​

Answer 1

Answer:

import java.util.*;

class series

{

public static void main()

{

Scanner sc= new Scanner(System.in);

int I,n,x,s=0;

System.out.println("Enter the ending amount of loop:");

n=sc.nextInt();

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

{

s=s+i*x;

}

System.out.println("Sum of the series"+s);

}

}