Is something wrong in the code? Please tell me.

Question

https://code.sololearn.com/c4FcPEEvX871/?ref=app

Answer 1

//main method missing, and n undeclared..
// without errors code:

class Series
{
public static void main (String a[]) //main method drclaration
{
int s = 0 ;
int sign = -1;
int n = 15; // declare and initialize this, 15 is a sample only..
for ( int i = 1; i <= n ; i++)
{
sign *= -1;
s = s + (sign * i);
}
System.out.println("S = " +s);
}
}

//what is your task? Is it correct output?.. Hope it helps...

Answer 2

You haven't declared the variable 'n' obviously.

Answer 3

It's a parameter

Answer 4

n is not initialised

Answer 5

I want to print ( 1 - 2 + 3 - 4 + 5 ) and the sum of series.