help..on Next n Previous Button

[Norazanita Adnan]

hi..can anyone help me...on the "Next" and " previous" button...
whe i click next or previous, i can view the next n previous picture...

my picture name is not is sequence(some of the filename missing)...

now i kept it in a masterList array the filename..so that when i can call it..
the file name been keept as
0001.gif
0002.gif
0010.gif
2004.gif


now im the actionPerforme, i need to code where when i click the button next or previous, it able to view...

this is the code that i try but i dont have any idea how to view the image..

  else if (e.getSource() == jbtNext)

{
// for loop to read the picture location
for(int c=1; c<masterList.length; c++)
{
File f = new File ("D:/nita/eclipse workspace/bufferedReader/image" + c + ".gif");
//load
try 
{
BufferedImage bufferImage1 =ImageIO.read(f);
//display
//currentIndex = (currentIndex + 1) % totalNumImage;  //check the non-negative
//jlblImageViewer1.setIcon(imageIcon1[currentIndex]);
//JLabel label = new JLabel(new ImageIcon(image_or_url));
 


//imageIcon1 = ImageIO.read(new File("D:/nita/eclipse workspace/bufferedReader/image" + c + ".gif"));
} 
catch (IOException eee) 
{

}  

this code for the masterList[]

  // null value been assign to masterList
for (int a=0; a<masterList.length; a++)
{
masterList[a] = null;
}

//2nd array list -- listOfFiles
File folder = new File("D:/nita/eclipse workspace/bufferedReader/image");
    File[] listOfFiles = folder.listFiles();

   
    for (int u=0; u<listOfFiles.length; u++)
    {
    //for the listOfFiles get the filename
    String aaa = listOfFiles[u].getName();
    char[] bbb =   aaa.toCharArray(); // turn the name to char
   
    //assign 0-3 index 
    char first = bbb[0];
    char second = bbb[1];
    char third = bbb[2];
    char fourth = bbb[3];

    
    //convert form char to string     
    String s1=String.valueOf(first);
    String s2=String.valueOf(second);
    String s3=String.valueOf(third);
    String s4=String.valueOf(fourth);

 
    //put all the value of s1-s4 in xxx
    String y = new String (s1 + s2 + s3 + s4 );
    
 
     //validation for the first letter (only digit allow)
     if (Character.isLetter(first))
     {
     
     }
     else
     {
     int yInt = Integer.parseInt(y);   //convert to integer
     //  the int will be your index for the list
     masterList[yInt] = aaa; 
       
     }  
     }//end of FOR loop
    
    //put everything back to masterList ... did not display the null value...
     for (int h=0; h<masterList.length; h++)
    {
      if (masterList[h] != null)
      {
      System.out.println(masterList[h]);
      }
        }  

hope someone can help me

[Joe Ess]

Since this seems like a Swing question, I'm going to move it to the Swing forum. You should look at the Swing tutorial on How to use Icons. I think the IconDemoApp example does what you are trying to do.