How Can I Reset The File Pointer to the Beginning of the File in Java?

Question

I am writing a program in Java that requires me to compare the data in 2 files. I have to check each line from file 1 against each line of file 2 and if I find a match write the

Answer 1

As noted, there are better algorithms - investigate these

aside:

FileReader doesn't implement mark and reset, so trashgod's comments are inaccurate. You'd either have to implement a version of this (using RandomAccessFile or what not) or wrap in a BufferedReader. However, the latter will load the whole thing in memory if you mark it