Replace the component name to universal?

Question

Hi!
I have put some code into the "FocusLost" event of the jTextField. Here is it:
private void jTFprobaFocusLost(java.awt.event.FocusEvent evt) { 
if(jTFproba.getText().equals("wrong"))
jTFproba.setBackground(Color.red);
else
jTFproba.setBackground(Color.white);
jTFproba.setText("OK");
It works, but I have about 20 similar TextBox in my application and I am interested in whether it is possible to replace the name of the component (jTFproba) to something universal like "this"?
For example:
private void jTFprobaFocusLost(java.awt.event.FocusEvent evt) { 
if(this.getText().equals("wrong"))
this.setBackground(Color.red);
else
this.setBackground(Color.white);
this.setText("OK");
But it does't work!
Do you have any ideas to replace the component name?

Answer 1

See the documentation of FocusEvent. It has a getComponent() method that I assume returns the component that has lost the focus (in your case, a JTextField instance). You can add the same listener to all JTextField instances, and cast the source to JTextField.
It also has a getOppositeComponent() method that presumably returns the component that has gained the focus, if that matters.
I assume for a focusGained() callback it's the contrary.
Edited by: jduprez on Nov 4, 2010 2:55 PM
Mixed method names, so reverted to a conservative "I assume" description