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views:

127

answers:

1
Q: 

Most efficient way to read files in Java?

As most other people, I deal with file I/O a lot and I wanted to make sure that I wasn't losing time on reading the file. I currently know of FileReader() as the most efficient way to read files in Java, but I was hoping there would be something obscure that was better.

Also, can you skip reading a line in a file in Java/C?

+5  A: 

Who said FileReader is the most efficient? It isn't. Wrap a BufferedReader around it and you will get a surprise. If the file is binary you shouldn't be using a reader at all, and if efficiency is a major concern maybe you shouldn't even be using a file.

EJP  2010-08-29 02:12:32
Right on every count.
Software Monkey  2010-08-29 02:45:55
Wouldn't wrapping a BufferedReader create more system overhead?
efficiencyIsBliss  2010-08-30 00:38:11
How exactly would it do that? Buffering reduces the number of system calls. That's why we do it.
EJP  2010-08-30 11:31:42

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