[Biojava-l] get all symbols in an alphabet

[Ren, Zhen]

Hi, gang,

How do I get all symbols in an alphabet?  The Alphabet interface has a method:

Symbol getSymbol(java.util.List rl);

Can someone help me understand what symbol it really returns, a random one, the first one or what?  How do I use this?

Thanks so much.

Zhen