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Write ascii in a specific position of the file
Hi,
i would like to know how could I write a text in a specific position of a file.
I could reed the specific position of a file using the BufferedReader() and the subString() .But Now I would like to write something using a function .
Any suggestion?
Thanks in advanced
Related threads:
Re: Write ascii in a specific position of the file
The easiest method is to read the file into memory (probably inside a StringBuilder), then you can modify this text anyway you want (insert text, remove it, etc.). Once you're done, write the contents back to the file (basically replace the original file).
Re: Write ascii in a specific position of the file
You could also use a RandomAccessFile, calling seek to move to a particular position to write.
Re: Write ascii in a specific position of the file
Java doesn't have functions. They are called methods.I would like to write something using a function .
db
Re: Write ascii in a specific position of the file
Not really much of a difference except the nameOriginally Posted by Darryl.Burke
Re: Write ascii in a specific position of the file
Thanks for your replays but I think I have not explain properly what I'm looking for.
Usualy I have a plain text and I reed the file, line by line, and I put into, for example, Strings a specific position of each line.
path = fileChooser.getSelectedFile();
FileReader fr = new FileReader(path);
BufferedReader br = new BufferedReader(fr);
String line;
while((line = br.readLine()) != null){
String month = line.substring(56,58).trim();
String year = line.substring(58,62).trim();
// Do what ever I need with the Strings
.
.
.
}//close while
fr.close();
What I'm looking for is a method to write a String that I have in a specific position of a file's line. Imagine position 56 to 58.
Something like that :
String month = myMonth;
1st line of the file;
write month in position 56,58 of 1st line;
month = myOtherMonth;
2nd line;
write month in position 56,58 of 2nd line;
Hope somebody can help me.
Thanks!
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