java - call method

你的 source code 有很多問題呢，但我已經將所有問題「簡單地」修正了，please download the modified source code from：
http://hk.geocities.com/ktl_ktl_ktl_ktl/TestStudent.java

不過雖然 compile 時已經不再有問題，但你的 source code 寫得不好，hard to read、and hard to maintain，如果你想改善，please send me your MSN/ICQ number, we may discuss it.

Remark：The modified source file may be deleted once this question becomes a "yahoo knowledge".