BufferedWriter not writing everything to its output file

Question

I have a Java program that reads some text from a file, line by line, and writes new text to an output file. But not all the text I write to my BufferedWriter a

Answer 1

You need to close your OutputStream which will flush the remainder of your data:

out.close();

The default buffer size for BufferedWriter is 8192 characters, large enough to easily hold hundreds of lines of unwritten data.

Answer 2

Always close your resources (not just files) when you're done with them.

 finally {
    out.close();//this would resolve the issue
    }

There might be situations when you want to flush the buffer without closing the file. In these situations you can use the flush-method.

Answer 3

Your code does not appear to be closing the writer after you've finished writing to it. Add an out.close() (preferably in a finally block) and it should work properly.