Question

I am working on the “Powers of” generator and I get an error that variable i cannot be found. I clearly declared it in the for loop

    public class EP63
{

    private static int answer;
    public static int PowerGenerator(double aFactor)
    {
        for(int i = 1; i < 12; i++);
        {
            answer = Math.pow(aFactor,i); 
            nextPower();

            return answer;

        }
    }   

    public static double nextPower()
    {
        System.out.println(answer);
    }
}

Can someone explain to me how to fix this problem?

Answer 1

It’s this line:

for(int i = 1; i < 12; i++);

Change to:

for(int i = 1; i < 12; i++)

The body of the for loop is a single expression. ; is interpreted as an no-op expression, so the { } block is not part of the loop, therefore i is not defined there.