postfix.?

do you guys have any idea about post fix.?can you please help me.?I trying to make a calculator program but I can't make my mathematical sentence into a postfix.!
[198 byte] By [leri_19a] at [2007-10-2 13:37:55]
# 1
> do you guys have any idea about post fix.?Here's a thorough explanation: http://en.wikipedia.org/wiki/Postfix_notation
prometheuzza at 2007-7-13 11:28:23 > top of Java-index,Other Topics,Algorithms...
# 2
If you want the expression parsing done for you, and you want to concentrate on the GUI, then there are some open source math parsers. http://sourceforge.net/search/?type_of_search=soft&exact=1&forum_id=0&group_id=0&atid=0&words=java+math+parser&Search=Search
rkippena at 2007-7-13 11:28:23 > top of Java-index,Other Topics,Algorithms...