Question

I am trying to fix the following Java code,

I cannot figure out why the printout is still 5.

public class simpleMath
{
    public static void main(String[] args) 
    {
        int number=5;
        half(number);

        System.out.println("5 divided by 2 is: " + number);

    }

    private static double half(int number) {
         number =  number/2;
         return number;
    }
}

Answer 1

First you need to be aware of what types you are assigning to your variables. You should change your code to look like this:

    public class simpleMath
    {


        public static void main(String[] args) 
        {
            double number = 5;
            double answer = half(number);

            System.out.println(" 5 divided by 2 is:"+ answer);

        }

        private static double half(double number) {
             number =  number/2.0;
             return number;
        }

    }

See how I now use the returned value and how I divide by 2.0? these changes will give you the results you are looking for.