List of Files in the Directory with specified type

Pass the File Directory in the method and extension if you want to get the files with different file extensions.

 private File[] getJpgFiles(File f){

  File[] files = f.listFiles(new FilenameFilter(){

   @Override

   public boolean accept(File dir, String filename) {

    return filename.toLowerCase().endsWith(".jpg");

   }});

  

  return files;

 }