Can I write to the end of a 5GB file in Java?

Question

Can I write to the end of a 5GB file in Java? This question came up in my office and no one is sure what the answer is.

Answer 1

This should be possible fairly easily using a RandomAccessFile. Something like the following should work:

String filename;

RandomAccessFile myFile = new RandomAccessFile(filename, "rw");

// Set write pointer to the end of the file
myFile.seek(myFile.length());

// Write to end of file here

Answer 2

Yes. Take a look at this link RandomAccessFile

http://java.sun.com/javase/6/docs/api/java/io/RandomAccessFile.html#seek(long)

That is , you open the file, and then set the position to the end of the file. And start writing from there.

Tell us how it went.