So I'm having a hard time with my situation and need some advice. I'm trying to convert my two Strings that I have into integers, so that I can use them in math equations. Here is what I tried, however it brings me an error in the app.

'     equals.setOnClickListener(new View.OnClickListener() {

        public void onClick(View arg0) {
            // TODO Auto-generated method stub

                            num1 = edit.getText().toString();
            num2 = edit.getText().toString();

            int first = Integer.parseInt(num1);
            int second = Integer.parseInt(num2);

            edit.setText(first + second);

        }
    });

Is there something that I am doing wrong? Thank you for any help.

EDIT: Yes this is Java. num1 and num2 are strings that I have previously named. What do you mean by trim?