How to change the file pointer in random access file?

I have a file, now I want to add a line at both the beginning and ending of the file. Should I use random access in this case? How can I move the pointer to the end of the file in that case? Thanks!
ruuram

I have a file, now I want to add a line at both the
beginning and ending of the file. Should I use random
access in this case?That's up to you. RandomAccessFile doesn't allow you to insert data at the beginning of the file, though.
How can I move the pointer to the
end of the file in that case? Thanks!
file.seek(file.length())

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