License: GPLv2 or newer
My very first open source program, developed while I was in Japan, between 1998 and 2003. The download link above points to the last version of langdrill written by me.
Langdrill is a helper for testing your foreign language vocabulary. It uses GTK+ toolkit and VDK (a C++ wrapper arround GTK+). It is similar with JavaDrill.
Support for displaying Japanese characters is included. For this, Japanese fonts must be installed on your system, for instance the xfonts-intl-japanese package.