Error in the code

Question

My java code(using vs code):-
import java.util.Scanner;
class Demo {
public static void main(String[] args) {
Scanner my_scan = new Scanner(System.in);
System.out.print("How many numbers you have to add");
int cc;
cc = my_scan.nextInt();
for(int dd = 1; dd<=cc; dd++){
System.out.print("Enter number "+dd+": ");
int ee;
int ff;
ee = my_scan.nextInt();
ff+=ee;
}
System.out.print("The sum of "+cc+" numbers is "+ ff );
}
}
this code errors that ff can't resolved to a variable
So, my question is how my error will solve
Please help me.

Answer 1

Because you need to define ff outside the loop as it's a local variable to that loop so

Answer 2

Thanks for your help Mukesh Kumar

Answer 3

you have define ff inside the loop