Loading an image to JFrame

Question

First of all hello to everyone. I'm sorry I'm asking a trivial question. I'd like to know how to load an image to Java application from one of my hard drive folders(e.g. My Pictures). I've searched on the internet, found some tips but it doesn't work. I'm using Eclipse. Below is the code
package GUI;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import java.awt.FlowLayout;
public class firstgui extends JFrame {
     private JLabel label1;
     public firstgui() {
     super("GUI");
     Icon plane=new ImageIcon("My Pictures/F-16");
     label1=new JLabel("This is my first GUI",plane,SwingConstants.CENTER);
     add(label1);
}AND THIS IS THE CODE FOR TESTING THE PROGRAM:
package GUI;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.SwingConstants;
import java.awt.FlowLayout;
import javax.swing.JLabel;
public class firstguiexecution {
public static void main(String args[]){
     firstgui mygui=new firstgui();
     warplanes.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
     warplanes.setSize(275,180);
     warplanes.setVisible(true);
}Thanks in advance.
Edited by: shc89 on Apr 28, 2009 11:45 AM

Answer 1

Thanks for the help guys. I've tried most of the things you said but still doesn't work. I even tried to just copy and paste an example program from the book but it still doesn't work, I get the same errors as with my program
This is the code of the example program:
package bookExample;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import java.awt.FlowLayout;
public class example extends JFrame {
          private JLabel label1;
          public example()
               super("Testing JLabel");
               setLayout(new FlowLayout());
               label1=new JLabel("Label with text");
               Icon bug = new ImageIcon(getClass().getResource("h2.jpeg"));
          label1=new JLabel("Label",bug,SwingConstants.LEFT);
          label1.setToolTipText("This is label1");
          add(label1);
}and execution class:
package bookExample;
import javax.swing.JFrame;
public class test {
public static void main(String args[]){
     example testexample = new example();
     testexample.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     testexample.setSize(275,180);
     testexample.setVisible(true);
}These are the errors I get:
Exception in thread "main" java.lang.NullPointerException
     at javax.swing.ImageIcon.<init>(Unknown Source)
     at bookExample.example.<init>(example.java:19)
     at bookExample.test.main(test.java:6)
Apparently, there's an error in getClass().GetResource line and in the execution part, in the line where the object is being created.