How do i load images from a folder?

Question

Hello everyone,
Please can someone help me as i am stuck.
I am trying to research loading images from a folder called /images/unknown (unknown is a customer number and is stored in a variable called customerNo).
I feel that i will need to load the images into an array then display them to the screen with a viewer.
Can anybody help me.
Thanks in advance

Answer 1

Welcome to the Sun forums.
irknappers wrote:
...Please can someone help me as i am stuck.You might want to be more exact in future, about what you are stuck on.
import javax.imageio.ImageIO;
import java.io.FileFilter;
import java.io.File;
import javax.swing.JFileChooser;
class LoadImages {
    public static void main(String[] args) {
        String[] suffixes = ImageIO.getReaderFileSuffixes();
        FileFilter fileFilter = new FileFilterType(suffixes);
        File directory = null;
        if (args.length==1) {
            directory = new File( args[0] );
        } else {
            JFileChooser fileChooser = new JFileChooser();
            fileChooser.setFileSelectionMode( JFileChooser.DIRECTORIES_ONLY );
            int result = fileChooser.showOpenDialog( null );
            if ( result == JFileChooser.APPROVE_OPTION ) {
                directory = fileChooser.getSelectedFile();
            } else {
                System.err.println("Must select a directory to proceed, exiting.");
        File[] images = directory.listFiles( fileFilter );
        for (File file : images) {
            System.out.println(file);
        System.out.println( "The rest is left an exercise for the reader.  ;-)" );
class FileFilterType implements FileFilter {
    String[] types;
    FileFilterType(String[] types) {
        this.types = types;
    public boolean accept(File file) {
        for (String type : types) {
            if ( file.getName().toLowerCase().endsWith( type.toLowerCase() ) ) {
                return true;
        return false;
}