How to write a string to a file
Hi,
I'm new to Java. I would like to know if I can insert a string to an existing text file. Example if my file consists of the following:
apple nice
orange sour
banana ok
after insertion:
apple is very nice. I eat 5 apples. (Notice i insert "is very" and ". i ate 5 apples" here)
I'm new to Java. I would like to know if I can insert a string to an existing text file. Example if my file consists of the following:
apple nice
orange sour
banana ok
after insertion:
apple is very nice. I eat 5 apples. (Notice i insert "is very" and ". i ate 5 apples" here)
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2 solutions:
1) open as RandomAccessFile, read the contents, insert in memory, write back.
2) open as serial text file, read all contents, close, insert in memory, reopen for write, write, close.
You can not just insert text into the middle of a file.
;JOOP!
1) open as RandomAccessFile, read the contents, insert in memory, write back.
2) open as serial text file, read all contents, close, insert in memory, reopen for write, write, close.
You can not just insert text into the middle of a file.
;JOOP!
You can use the StringList class here: just replace the correct line(s)
https://www.experts-exchange.com/questions/21245044/Replacing-a-line.html
https://www.experts-exchange.com/questions/21245044/Replacing-a-line.html
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You don't need to do all that as the class at that link does it for you ;-)
CEHJ, I can even do it all in 3 lines of code using my own VirtualEditor class,
but I would like to give a solution in plain JAVA 6.
;JOOP!
but I would like to give a solution in plain JAVA 6.
;JOOP!
Do that then - let's teach code reuse here ;-)
ASKER
thanks i appreciate your help
:-)
Java
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apple is very nice. I eat 5 apples. (Notice i've inserted "is very" and ". i ate 5 apples." here)
orange sour
banana ok