I have file with data as follows
data
1
2
3
4
5
I need to read 1 and 5 ,then 2 and 4 then like..
upto end of file, can any one help on this
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Answer Posted / vj
1. Find the greatest RRN of the file
2. Have 2 numeric counters.
3. Initialize counter1 to 1
4. Initialize counter2 to the max RRN
5. Chain with counter1 and read the record
6. Chain with Counter2 and read the record
7. Increment counter1
8. Decrement Counter2
9. Repeat Steps 5 to 8 in loop unitl counter 1 = Counter 2
(when counter 1=counter 2) we would have reached the middle of the file
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