Tomek Kondrat · Feb 22, 2014 at 12:00 pm

How to Create a Java FileFilter with a Picture Guide

Java is a programming language that is used to code software for many devices, including Android. It’s criticized by many, but Java is still widely used, mostly because its ability to run properly across many OSes as Windows, Linux, and Mac OS. Quite a few tools available on XDA are written in Java, including the Sony-specific Flashtool application, CASUAL, and so on.

Here at XDA, we’ve already presented a couple of applications, guides, and tutorials for Java. You may have already noticed that Java uses classes to handle various tasks. One such class, FileFilter, was recently presented in the form of a picture guide by XDA Senior Member Beatsleigher. The guide shows you how to write a custom class from scratch, so it’s pretty nice for all beginning programmers to understand the language better.

FileFilter can be used to display only a given file extension in an open window. So for example, a user can select .apk or .mp3 files only, and the rest won’t be visible. If you are working on your first Java project and it opens different file types, this guide will probably be very helpful.

You can find all needed resources in the guide thread.


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Tomek Kondrat

eagleeyetom is an editor on XDA-Developers, the largest community for Android users. View posts and articles below.

Tomek is the only Polish moderator on XDA Developers. He graduated from the University of Warmia and Mazury in Olsztyn with a degree in journalism and public communication in 2013. He's a big fan of football (not hand egg), post rock and cooking. A total addict of mobile technology, especially Android. Currently flashes dozens of custom ROMs on his OPO.
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