Stuff

import java.util.Arrays;
import java.util.Collections;
import java.io.File;
import java.io.FilenameFilter;

class EndFileFilter implements FilenameFilter {
	
	private String EndFilter;
	
    public EndFileFilter(String arg) {
		EndFilter = arg;
	}

	public boolean accept(File dir, String name) {
        return name.endsWith(EndFilter) || name.endsWith(EndFilter.toUpperCase()) || name.endsWith(EndFilter.toLowerCase());
    }

}

public class EndFilter {
	
	public static String[] getlist(String endfilter, String folder) {
		String[] dir;
		
		dir = new java.io.File(folder).list(new EndFileFilter(endfilter)); // Get list of names

		return dir;
	}
	
	public static void main(String[] args) {
		if (args.length < 1) {
			System.out.println("Too few arguments");
			System.out.println("Syntax: java EndFilter <filter> [folder name] [characters not to display]");
			return;
		}
		String[] FileList = null;
		String EndFilter = args[0];
		String FolderName = args.length >= 2?args[1]:".";
		int RemoveLength = args.length >= 3?Integer.valueOf(args[2]).intValue():0;
		if (RemoveLength < 0) { RemoveLength = 0; }
		
		FileList = getlist(EndFilter,FolderName); // Get filtered list of names	

		try {
			Collections.shuffle(Arrays.asList(FileList)); // Randomize file list
		}
		catch (NullPointerException i) {
			return; //Folder not found
		}
		
		for (int i = 0; i < FileList.length; i++) {
			System.out.println(FileList[i].substring(0,FileList[i].length() - RemoveLength));
		}
  }
}