How to restrict the user input textfield to an Integer?

Hello there;
Here is my problem, and i need your help.
I have a mssql 2005 server as my back end database;
I have designed a web application from which i can load a specific table in my database.
One of my table column is of integer type and i want to restrict the user to only entered an integer in the textfield.
I have try the integer converter from the "converters" section of the pallete. The result is that its actually restrict the user input to be an integer, but i can't load the database, obtaining a java.lang.Int error message.
Next i have tried using int theid=int.parseInt........ but i am receiving a syntax error of the type cannot find symbol parseInt.
I can't just work this out!
Could anybody help please.

As has been stated in previous replies you can check that the value in the TextField is parseable as an Integer by using Integer.parseInt(fieldVariable.getText()). However, you can also restrict what characters can be entered into the text field, like so:
Assume your field variable is textField1 then the KeyTyped event for the text field:
private void textField1KeyTyped(java.awt.event.KeyEvent evt) {
if (evt.getKeyChar() < '0' || evt.getKeyChar() > '9') {
evt.consume();
}will only allow the numeric characters (i.e., 0-9) to be typed into the field. Keep in mind that in this case the backspace, delete, home, arrow, etc, keys will not delete characters, move the cursor, etc, so if you want those you have to test for them as well.

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