Help in java CSV coding

[demi88]

Hi to all! i need help for my program

i need to read and write csv file

this will be the input in my csv file
folder assigned letter depth
\a m 0
\b n 0
\b\c n 1
\b\c\d o 2
\b\c\d\e p 3
\b\c\d\e\f n 4
\b\g n 1
\c n 0

and this should be the output in csv file

\a m
\b n
\b\c\d o
\b\c\d\e p
\c n

anyone can help me?? please thanks alot.

[masijade]

What, exactly, are you having problems with?

[demi88]

What, exactly, are you having problems with?

the codes that will be use

[masijade]

Well, those we are not going to give you.

If you post your code and explain exactly what is going wrong with it (i.e. compile/error messages) we will help you with it, but we are not going to do it for you.