Re: Swing Text components

"Andrew Thompson" <>
28 Mar 2007 06:16:45 -0700
On Mar 28, 10:06 pm, "Uncle Sam" <> wrote:

...I tried to use the
Component.hasFocus() method on the text areas but the function always
returns false.

Seems to work just fine here*, I guess the
problem is in the code you did not show
us. In these situations, I suggest preparing
an SSCCE - that way, it is easy to see what
is going wrong.

For more details on the SSCCE, see..

* Example code..
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class FocusLocation
   extends JFrame
   implements FocusListener {

   JTextField field1 = new JTextField("Field 1");
   JTextField field2 = new JTextField("Field 2");
   JTextArea ta = new JTextArea( "Area 1",10,20);

   FocusLocation() {
      super("Focus Location");

      Container c = getContentPane();
      c.setLayout(new BorderLayout());

      JPanel rhs = new JPanel(new BorderLayout());

      JPanel textFields = new
         JPanel(new GridLayout(0,1));

      JSplitPane rhsSplit = new JSplitPane(
         new JLabel("Label 1"),

      JSplitPane sp1 = new JSplitPane(
      c.add( sp1, BorderLayout.CENTER );

         JFrame.EXIT_ON_CLOSE );

   public void focusLost(FocusEvent fe) {

   public void focusGained(FocusEvent fe) {
      Component c = fe.getComponent();
         c.getLocation() +
         " has focus: " +

   public void examineFocus() {
      System.out.println( "Area 1: \t" +
         ta.hasFocus() );
      System.out.println( "Field 1: \t" +
         field1.hasFocus() );
      System.out.println( "Field 2: \t" +
         field2.hasFocus() );

   public static void main(String[] args) {
      FocusLocation fl = new FocusLocation();
      fl.setVisible( true );

Andrew T.

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