How to get coordinates of components. PLEASE HELP ME URGENT!

Question

Hi, I am trying to get the coordinates of my components that are tabbed pane buttons, buttons, text fields etc so I can place an image of a pointer under it that points to it and then under the image of the pointer I would put a label describing the button for example "press the tab to start". Then when I press tab1 the image of pointer image points to the next component and has a label under pointer.
Now I have tried using componenet.getX() and getY() and then set the values of the the image panel to use then the label panel so they be placed under the component, these panels are not using layout manager but absolute positioning. If the window is resized then the labels and image of pointer should also adjust. I have tried putting the label and arrow into a glasspane and now layerdpane as some people here suggested which when I do then add it to contentpane the main panel with the components is not there but the layerd pane is.
I am having huge difficulties with this and if someone can Please just tell me or even better give me an example code how to find out the coordinates of components so I can place my image of pointers and labels underneath them I will be very grateful of you. I am on a verge of giving up accomplish what I am doing and I am new to the swing framework. My progress to solve this has been very slow and frustrating. I just hope someone here can help.

Answer 1

I tried the both of codes given. But the code given by both the person i have not understand. And what they there code is doing. This is the code form my side if this example help u.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
* Author Waheed-Ul-Haq ( BS(CS)-8 )
public class Samulation2
     JPanel pane;
     JLabel label1;
     JTextField entProcesfld;
     JButton buttCreat;
     JButton buttReslt;
     JLabel usrProcesID[];
     JTextField usrArivTam[];
     int processes;
     public JComponent createComponents()
     pane = new JPanel();
     pane.setLayout (null);     
     label1 = new JLabel();     //Label for to tell user to enter no of Processes.
     label1.setText("Enter the no. of Processes");
     pane.add(label1);
     label1.setBounds(20, 25, 150, label1.getPreferredSize().height);
     entProcesfld = new JTextField();     //TextField to enter no of processes.
     entProcesfld.setToolTipText("Enter the no of Processes.");
     pane.add(entProcesfld);
     entProcesfld.setBounds(180, 25, 100, entProcesfld.getPreferredSize().height);
     buttCreat = new JButton();          //Button to create the TextFields.
     buttCreat.setText("Create TextFields");
     pane.add(buttCreat);               //Adding cutton to Jpane.
     buttCreat.setBounds(new Rectangle(new Point(30, 60), buttCreat.getPreferredSize()));
     buttCreat.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent e) {
                    buttCreatActionPerformed(e);
               } } );          //ActionListenr to Create the TextFields.
     pane.setPreferredSize(new Dimension(600,600));
     return pane;
     }     //-------END of Component createComponents()--------//
     private void buttCreatActionPerformed(ActionEvent e)     //Action to Create the TextFields.
               processes = Integer.parseInt (entProcesfld.getText ());
               JLabel Labproces = new JLabel();     //Label of Processes.
               Labproces.setText("Processes");
               pane.add(Labproces);
               Labproces.setBounds(new Rectangle(new Point(15, 105), Labproces.getPreferredSize()));
               JLabel labArivTam = new JLabel();     //Label of Arival time.
               labArivTam.setText("Arrial Time");
               pane.add(labArivTam);
               labArivTam.setBounds(new Rectangle(new Point(90, 105), labArivTam.getPreferredSize()));
               //----Creating Dynamic JLabels------//
               usrProcesID  = new JLabel[processes];     /* Makes an array */
               int yXis = 125;          //Variable for Y-axix of JLabel.
               for(int i=0; i<processes; i++)      /* i takes each value from 0 to processes-1 */
                usrProcesID[i] = new JLabel("P" + i);      /* Makes a JLabel at an array place */
                pane.add(usrProcesID);      /* Adds a JLabel (rather than an array) */
usrProcesID[i].setBounds(new Rectangle(new Point(28, yXis), usrProcesID[i].getPreferredSize()));
yXis = yXis + 25;     /* Increses the Y-axis to show JLabels. */
}     //EndFor     
//-------End Dynamic JLabels---------//               
               //-----Creating Dynamic Arival Time TextFields-----//
               usrArivTam = new JTextField[processes];          /* Makes an array */
               yXis = 125;          //Variable for Y-axix of JTextField.
               for(int i=0; i<processes; i++)      /* i takes each value from 0 to processes-1 */
usrArivTam[i] = new JTextField();     /* Makes a JTextField at an array place */
usrArivTam[i].setToolTipText("Enter Arival Time.");
pane.add(usrArivTam[i]);      /* Adds a JTestField (rather than an array) */
usrArivTam[i].setBounds(100, yXis, 35, usrArivTam[i].getPreferredSize().height);
yXis = yXis + 25;     /* Increses the Y-axis to show JTextFields. */
}     //EndFor     
//-----End Dynamic Arival Time TextFields.-----//
//----Calculating points for Label and textfields.
Point poi = new Point();
poi = usrArivTam[processes-1].getLocation ();     //Getting the location of the last text field of ArivalTime.
//-----Label for Average Waiting time.--------\\
JLabel averWaitLB = new JLabel();
averWaitLB.setText("Average Waiting Time");
          pane.add(averWaitLB);
          averWaitLB.setBounds(new Rectangle(new Point(30, (int)poi.getY()+50), averWaitLB.getPreferredSize()));
//-----TextField for Average Waiting Time.--------\\
JTextField averWaitTF = new JTextField();
averWaitTF.setText ("Hello");
averWaitTF.setEditable(false);
pane.add (averWaitTF);
averWaitTF.setBounds(190, (int)poi.getY()+50, 35, averWaitTF.getPreferredSize().height);
}     //------END of void buttResltActionPerformed(ActionEvent e)---------//
     private static void createAndShowGUI()
//Make sure we have nice window decorations.
JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("Priority Scheduling (Non-Preemptive)....");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Samulation2 application = new Samulation2();
//Create and set up the content pane.
JComponent components = application.createComponents ();
components.setOpaque (true);
int vertSB = ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS;
          int horzSB = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS;
          JScrollPane scrollPane = new JScrollPane(components, vertSB, horzSB);
scrollPane.setPreferredSize (new Dimension(720,455));
frame.getContentPane ().add (scrollPane,null);
//Display the window.
frame.pack();
frame.setVisible(true);
}     //------END Of void createAndShowGUI()--------//
     public static void main(String[] args)
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
     }     //---------End of main()----------------//
}     //--------END of class Samulation2----------//
If any body help me implementing the ScrollBars in this code. I am unable to use Scroll Bars with this code while using NULL layout. If any body tell me how to get the Size and set for the pane.