Why is my calculation not working in Java?

September 2, 2022

I tried debugging but the variable y remains as 0 instead of carrying out the expected calculation. Someone tell me what I’m doing wrong. Thank you.

public static void main(String[] args) {
    // TODO Auto-generated method stub
    Scanner scan = new Scanner(System.in);
    System.out.println("Enter odd number: ");
    int n = Integer.valueOf(scan.nextLine());
    scan.close();
    double y = 0;
    for (int x = 1; x < n + 1; x = x + 2) {
        y += (x/(x + 1));
    }
    System.out.println("Y = " + y); 
}

>Solution :

Problem is with the (x/(x + 1)). Variable x is of data type integer. This will also result in an integer when dividing. Integers are whole numbers and are simply cut to 0 at 0.x for this reason.

To fix this have a look here