huge files reading

hi, i was wondering how should i read really huge files. is there any sense to split up those files into view smaller or can i in while loop read from bufferedreader interested me data? these are txt files about 20,000 lines. thanks for any advice. best regards
[268 byte] By [alcatraz123a] at [2007-11-27 6:20:26]
# 1
It all depends on what you want to do with the data, and how much that data really is. If each line's 1000 chars, you have 40 MB memory consumption if you load it all. so what?
CeciNEstPasUnProgrammeura at 2007-7-12 17:35:37 > top of Java-index,Java Essentials,Java Programming...
# 2
20,000 lines of how many characters, coz 20,000 lines is (usually) small.And what do you need to do with this wee file?
corlettka at 2007-7-12 17:35:37 > top of Java-index,Java Essentials,Java Programming...