About TAB key

Question

Hi, i hope you can help me a little....!!!
Thank's anyway =)
Look, in a page when I have some textbox, i can go thougth then with TAB key. If i want to return i have to press Shift key with TAB key...
My question is: Is there some instrucction to mark the text in a control when it is selected ??? or all this is automatic, i mean, the selection of text in a control is select automatly when the control has the focus????...
Thanks!!!....
I'm wait four your answer!!!
Have a nice day!!!
NOTE: AS YOU CAN SEE, MY ENGLISH IS NOT VERY WELL, BUT I TRAY TO EXPLAIN MY PROBLEM.... THANK'S AGAIN.... =)

Answer 1

Read the section from the Swing tutorial on "Writing Event Listeners":
http://java.sun.com/docs/books/tutorial/uiswing/events/index.html
The following code is an example of a Focus Listener that will select all the text in the text field when you tab to a field or use the mouse to click on it:
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.plaf.basic.*;
import javax.swing.plaf.*;
public class TextFieldTest extends JFrame
    public TextFieldTest()
          FocusAdapter focusAdapter = new FocusAdapter()
               public void focusGained(FocusEvent e)
                    JTextComponent component = (JTextComponent)e.getSource();
                    component.selectAll();
          JTextField textField1 = new JTextField( "one two three four five" );
          textField1.addFocusListener( focusAdapter );
          getContentPane().add( textField1, BorderLayout.NORTH );
          JTextField textField2 = new JTextField( "abcdefg" );
          textField2.setMargin( new Insets( 5, 5, 5, 5 ) );
          textField2.addFocusListener( focusAdapter );
          getContentPane().add( textField2, BorderLayout.SOUTH );
    public static void main(String[] args)
     TextFieldTest frame = new TextFieldTest();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.pack();
        frame.setVisible(true);
}