Hi,
I have got the code to read a file line by line amd it works too but I
don't understand it.

fp = File.open(dataFile, "r")
fp.each_line do |line|
 puts line
end

My question is: the "open" method is not mentioned in the doc of File
class
http://ruby-doc.org/core/classes/File.html
What type does it return?

My 2nd question is how can I read a file char by char. Basically the
file doesn't have line breaks.

Please help..
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