How to add two values from a textField ???

Question

Hi all,
I'm new to Java and the J2ME, I jumped to J2ME immediately, and I'm wondering how can I compute two values coming from textField. Let say I would add this two values,.
like
txtAnswer = txtNum1 + txtNum2 ; (in some other PL)
Here's my snippet code in J2ME
TextField txtAnswer = new TextField("Answer ","",10,TextField.NUMBER);
TextField txtNum1 = new TextField("Number1 ","",10,TextField.NUMBER);
TextField txtNum2 = new TextField("Number2 ","",10,TextField.NUMBER);
Command cmdAdd = new Command("ADD",Command.SCREEN,1);
// add the UI
What would be the code inside my commandAction method?
Thanks a lot.
God Bless.

Answer 1

Thanks JC,
I already solved the problem, JC you provided the right answer, it's my fault why my program does not run at the first time.
Thanks,. I'm just wondering the difference between these two implementaiton and why does the first implementation causes an error, (an error that I posted before this.)
Implementation 1
public class myClass extends...... implements .... {
private TextField txtNum1, txtNum2, txtAns;
public void myFunctionAdd( )
TextField txtNum1 = new TextField("Number1 ","",10,TextField.NUMERIC);
TextField txtNum2 = new TextField("Number2 ","",10,TextField.NUMERIC);
TextField txtAns = new TextField("Answer","",10,TextField.NUMERIC);
public void commandAction(Command c, Displayable s )
if ( ....... )
int answer = Integer.parseInt(txtNum1.getString()) + Integer.parseInt(txtNum2.getString() );
     txtAns.setString(String.valueOf(answer));
Implementation 2:
public class myClass extends...... implements .... {
private TextField txtNum1, txtNum2, txtAns;
public void myFunctionAdd( )
txtNum1 = new TextField("Number1 ","",10,TextField.NUMERIC);
txtNum2 = new TextField("Number2 ","",10,TextField.NUMERIC);
txtAns = new TextField("Answer","",10,TextField.NUMERIC);
public void commandAction(Command c, Displayable s )
if ( ....... )
int answer = Integer.parseInt(txtNum1.getString()) + Integer.parseInt(txtNum2.getString() );
     txtAns.setString(String.valueOf(answer));
What's seems to be the difference?
Thanks for any kind reply....