read a file from different line number

Hi All,

I have a text file.The file size is very big.I have to read the file from different line number.
e.g

File test.txt contains 10000000 lines and more.The 1st thread read the file from line 1 to 1000.2 nd thread read the file from line 1100 to 2000.3 rd thread read the file from line 2100 to 3000.. so on.

Please help me.

Thanks!
vaskar

Jun 3 '08 #1

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1402

JosAH

11,448

Expert 8TB

Hi All,

I have a text file.The file size is very big.I have to read the file from different line number.
e.g

File test.txt contains 10000000 lines and more.The 1st thread read the file from line 1 to 1000.2 nd thread read the file from line 1100 to 2000.3 rd thread read the file from line 2100 to 3000.. so on.

Please help me.

Thanks!
vaskar

Better have one thread read the entire file and dispatch chunks of it to different
threads. A hard disk can 'read ahead' and your scenario spoils that. Also have
a look at the API documentation for the ByteBuffer class.

kind regards,

Jos

Jun 3 '08 #2

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