snippet for java widget

一个经典的ROBOTCODE代码，这个机器人包括各种有用的代码片段，并不是为了成为一个优秀的战士。-This bot includes all sorts of useful snippets. It is not designed to be a good fighter (although it does well 1v1), just to show how certain things are done Bits of code lifted from Nicator and Chri