Append data to file in correct order

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Hi,

I had created a file with "a+" mode.

I want to write data into that file as
NU2947;03/09/2004;
NU2947;03/09/2004;
F50359;03/06/2004;

but I am getting
F50359;03/06/2004;
NU2947;03/09/2004;

into that file.

Can anyone help me out to write duplicate data in a file.
Also let me know that how can I correct the sequence/order of input data.

Thanks in advance.

Posted 4-May-10 23:27pm

Poonamol

Updated 13-May-10 0:45am

Moak

v3

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OriginalGriff 5-May-10 5:34am

Please provide a code sample - we cannot read minds!

2 solutions

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Christian Graus · Accepted Answer · 2010-05-05T01:45:00

Solution 1

The answer is obvious. Your code, the code you didn't show us, is writing the data in the wrong order. If you write it in the right order, it will appear in the file, in the right order.

Posted 5-May-10 1:45am

Christian Graus

Cedric Moonen · Accepted Answer · 2010-05-05T01:54:00

Without seing your code, it is difficult to give an answer. However, if you have to be able to insert a line at a specific location in your file, forget about it. You can only append information at the end of the file. So, if you want to do something like that, the best way is to load everything in memory, sort it in memory and then write the full file once again.