看看下面这个链接吧，是不是又觉得IT人又被愚弄一把?
Gosh! how can be a stupid & inflexible software design like this!!! Imagine that there are 100 methods defined in an interface, but a programmer is just expecting to use 1 or 2 of the methods, then he or she would have to bother to find out and implement all 100 methods, regardless of whether to use or not...
How stupid such a software design like this! Imagine if there are 1000 methods defined in an interface, then nobody can implement the interface at all!
