KeyListener Not Listening First Typed Character

Question

When the user types in a TextField, the KeyListener is supposed to look at each keyed entry. If the conversion from text to double is not successful, a display message is shown and a sound will be heard.
My problem is, when I type the first number in the TextField, the sound is played when is shouldn't and the error message shows with no number. Then, if the conversion is correct, the calculate button will be disabled, but this only happens after the second entry no matter if it is a number or a letter.
For example:
I type "4", the errors sound is played and the message displays "You have typed , which is invalid"
I type "4f", the error sound doesn't play and the message displays "You have typed 4, which......."
Its like it's listening one character late.
here's the code I have:        TypeAction oTA = new TypeAction();
        edtSalesAmount.addKeyListener(oTA);
    private class TypeAction extends KeyAdapter
        public void keyPressed(KeyEvent e)
            try
                double dSalesAmount = Double.valueOf(edtSalesAmount.getText()).doubleValue();
                cmdCalculate.setEnabled(true);
            catch (NumberFormatException x)
                cmdCalculate.setEnabled(false);
                lblError.setText("You typed " + edtSalesAmount.getText() +
                    ", which is invalid.");
                mySound = getAudioClip(getCodeBase(),sSound);
                mySound.play();
            }//Thanks for looking!!!!!!
    }

Answer 1

Thanks a lot! You fit the missing piece I was looking for! keyReleased   private class TypeAction extends KeyAdapter
        public void keyReleased(KeyEvent e)
            try
                char character = e.getKeyChar();
                if(Character.isDigit(character))
                    cmdCalculate.setEnabled(true);
                else
                    e.consume();
                    cmdCalculate.setEnabled(false);
                    lblError.setText("You typed " + edtSalesAmount.getText() +
                        ", which is invalid.");
                    mySound = getAudioClip(getCodeBase(),sSound);
                    mySound.play();
           catch (NumberFormatException x)
    }