Graphs in gui in JSP

i don't know where to put this query of mine but since i am working on JSP for my project ...so i am putting it here.
Te project needs the graphical depiction of the transactions of reports which may be
a> flower type versus day
b> flower type versus week
c> flower type versus month

d> earning versus day
e> earning versus flower type
etc.

Now its my earnest request to all those who go through this post that please suggest a source code solution if you can.

What i need is when i enter data regarding various details the report should be generated dynamically.

I don't know what i am asking may be a bit more but please help me out... i am desperate.

"shesh",
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