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java file input and output handling

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Last Modified: 2012-05-11
Hi
can someone help to deal with file
i have file that has format:
E008,Michelle,1980, manager, 17000
E008,George,1970, manager, 10600
E008,Jonathan,1940, manager, 25000

i don't have any problem with reading or writing to file

my question is:
there is a quick way to update specific element in file like salary
How i can while i am reading from file change element from specific line like salary
for example
E008,Michelle,1980, manager, 17000
E008,Michelle,1980, manager, 0

thanks
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