/*
Модифицировать проект FindFiles так, чтобы программа искала в каталоге
*/
package ua.mralex;

import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.ArrayList;

public class Main {

    static class MyFileFilter implements FilenameFilter {

        private String[] ext;

        public MyFileFilter(String[] ext) {
            this.ext = ext;
        }

        @Override
        public boolean accept(File dir, String name) {
            for (String ex : ext) {
                if (name.endsWith(ex)) {
                    return true;
                }
            }
            return false;
        }
    }

    private static void findFiles(String srcPath, String[] ext, ArrayList<String> list) throws IOException {
        File dir = new File(srcPath);
        File[] files = dir.listFiles(new MyFileFilter(ext));

        for (File f : files) {
            list.add(srcPath + f.getName());
        }
    }

    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<>();
        String[] ext = {"txt", "docx", "rar", "xlsx"};

        try {
            findFiles("c:\\", ext, list);
        } catch (IOException e) {
        }

        for (String s : list) {
            System.out.println(s);
        }
    }
}