Series 05

Given a number of terms the task is to calculate the value upto ‘n’ terms of the below given series.

Series: 1 – 2 + 3 – 4 + 5 …………… + ‘n’ terms.

Java
import java.util.*;
public class SeriesV5
{
    public static void main(String args[])
    {
        int n=0;
        int result=0;
        Scanner sc=new Scanner(System.in);
        System.out.print("Enter number of terms: ");
        n=sc.nextInt();
        for(int i=1;i<=n;i++)
        {
            if(i%2==0)
            {
                result=result-i;
            }
            else
            {
                result=result+i;
            }
        }
        System.out.println("Result of the series: "+result);
    }
}
Java