I am using Java Swing .I have a dialog box in which there are three JTextFields. A user can enter some data in a text field and I validate that data before user moves to the next field by pressing "TAB" or using mouse to point to the next field. I have registered focusListener on these three JTextFields and as the focus is lost from one field, i call my method x() to validate the data entered by user. If the data is wrong, a message window is displayed showing to the user what was wrong in the data entered. Now my problem is I call method x() in focusLost(e) method and even if there is an error message, the cursor moves to the next field which I don't want. I want the cursor to be placed back to the textfield whose validation generated the error so that the user can correct it and if it is correct, then only cursor should move to the next textfield. Immediate help will be appreciated.