Help with placing the JComponents at a particular location in JPanel

Question

Hello All,
I think it is simple in placing JLabel with an icon or just just text at a particular location in the JPanel. But it is notworking. I know it is very simple but i think i am missing something. Here is code please help with this code.
Thanks
Smithaimport java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.LayoutManager;
import javax.swing.*;
public class DocumentGraphicalRepresentation {
     public void buildDocumentation() {
          JFrame frame = new JFrame("Graphical Representation");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setBounds(0, 0, 475, 265);
          JPanel panel = new JPanel();          
          panel.setBounds(0, 0, 475, 265);
          panel.setBackground(Color.lightGray);
          //panel.setLayout(new BorderLayout());          
          JLabel label0 = new JLabel(new ImageIcon("c:/arrow.gif"));
          label0.setLocation(61, 68);
          label0.setOpaque(false);
          panel.add(label0);
          JLabel label1 = new JLabel(new ImageIcon("c:/bulb.gif"));
          label1.setLocation(338, 139);
          label1.setOpaque(false);
          panel.add(label1);
          frame.getContentPane().add(panel);
          frame.setVisible(true);          
     public static void main(String args[]) {
          DocumentGraphicalRepresentation document = new DocumentGraphicalRepresentation();
          document.buildDocumentation();
}

Answer 1

When adding components to a null layout you must set both a location and size for them to show up.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.LayoutManager;
import javax.swing.*;
public class DGR {
     public void buildDocumentation() {
          JFrame frame = new JFrame("Graphical Representation");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setBounds(0, 0, 475, 265);
          JPanel panel = new JPanel();          
          panel.setBounds(0, 0, 475, 265);
          panel.setBackground(Color.lightGray);
          //panel.setLayout(new BorderLayout());          
          JLabel label0 = new JLabel(new ImageIcon(//"c:/arrow.gif"));
                                     "images/geek/geek-----.gif"));
                Dimension d = label0.getPreferredSize();
                label0.setSize(d);
          label0.setLocation(61, 68);
//          label0.setOpaque(false);
          panel.add(label0);
          JLabel label1 = new JLabel(new ImageIcon(//"c:/bulb.gif"));
                                     "images/hawk.jpg"));
                d = label1.getPreferredSize();
                label1.setBounds(338,139,d.width,d.height);
//          label1.setLocation(338, 139);
          System.out.println("label1.isOpaque = " + label1.isOpaque());
//          label1.setOpaque(false);
          panel.add(label1);
          frame.getContentPane().add(new JScrollPane(panel));
          frame.setVisible(true);          
     public static void main(String args[]) {
          new DGR().buildDocumentation();
}