Basic Calculator Issue

[brandonio21]

Alright, I see the problem.

What you're going to want to do is change this line:

Code:

String answer = df.format(res);

To this:

Code:

String answer = df.format(product);

This is because what you were trying to do was format the TextField as a String. However, you can't make that conversion. So, we need to format the answer (product) as a String, and then display it in the textfield.