The GNU MP Bignum Library，非常好用的大數運算庫，GMP is a free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers.
Zaval Light-Weight Visual Components Library (LwVCL) is a pure Java alternative to humble AWT-based GUI interfaces for wide ranges of platforms, including J2SE, PersonalJava and J2ME(coming soon). LwVCL can be used on Zaurus, iPAQ and other devices.
