title: Loading image in Java J2ME
body: <p>I have a problem with loading image with java 2ME. I have a image file "picture.png" in location drive "C:". After that I wrote my like this to show image from this location. </p>
  
  <pre><code>import javax.microedition.midlet.*;
  import javax.microedition.lcdui.*;
  import java.io.*;
  
  public class ImageMidlet extends MIDlet implements CommandListener{
      private Display display;
      private Command exitCommand;
      private Command backCommand;
      private Command okCommand;
      private Form form;
  
      private ImageItem imageItem;
      private Image image;
  
      public ImageMidlet(){
          display = Display.getDisplay(this);
          form=new Form("");
          exitCommand = new Command("Exit", Command.EXIT, 1);
          backCommand = new Command("Back", Command.BACK, 2);
          okCommand = new Command("OK", Command.OK, 3);
  
          try {
              image=Image.createImage("/picture.png");
              imageItem=new ImageItem(null,image,ImageItem.LAYOUT_NEWLINE_BEFORE,"");
          }
          catch(IOException ex){
  
          }
          form.append(imageItem);
          form.addCommand(okCommand);
          form.addCommand(exitCommand);
          form.addCommand(backCommand);
          form.setCommandListener(this);
  
          display.setCurrent(form);
  
      }
  
      public void commandAction(Command c,Displayable d){
  
      }
  
      public void startApp() {
      }
  
      public void pauseApp() {
      }
  
      public void destroyApp(boolean unconditional) {
      }
  }
  </code></pre>
  
  <p>It shows me this error:</p>
  
  <pre><code>Unable to create MIDlet Test.ImageMidlet
  java.lang.NullPointerException
       at javax.microedition.lcdui.Form.append(Form.java:638)
       at Test.ImageMidlet.&lt;init&gt;(ImageMidlet.java:39)
       at java.lang.Class.runCustomCode(+0)
       at com.sun.midp.midlet.MIDletState.createMIDlet(+34)
       at com.sun.midp.midlet.Selector.run(Selector.java:151)
  </code></pre>
  
  <p>I am starting learn to develop, so please guide to do this.</p>