Problems with BufferedReader

[testarosa]

I dont know what is going on with my program. I read from a file like this:

File foo = new File(args[0]);
BufferedReader in = new BufferedReader(new FileReader(foo));

i=0;
while(i<6){
char[] buffer= new char[n];
qt= in.read(buffer, offset, n);
System.out.println("***How many characters should be read into buffer: " + n);
System.out.println("***How many were actually read: " + qt);
i++;
}

And here is my output:

***How many characters should be read into buffer: 7678
***How many were actually read: 7678

***How many characters should be read into buffer: 7678
***How many were actually read: 514

***How many characters should be read into buffer: 7677
***How many were actually read: 7677

***How many characters should be read into buffer: 7677
***How many were actually read: 515

***How many characters should be read into buffer: 7677
***How many were actually read: 7677

***How many characters should be read into buffer: 7677
***How many were actually read: 515

The size of my input file is (7678+7678+7677+7677+7677+7677), as you can see above.
Has anyone already had this problem?

Thanks in advance.

[masijade]

And? If you read the API docs for read, carefully, you will see that it does not guaranteed to fill that passed in buffer.

do

int totalRead = 0;
int byteRead = 0;
while ((totalRead < buffer.length) && ((byteRead = in.read(buffer, totalRead, buffer.length - totalRead)) >= 0)) {
    totalRead += byteRead;
}

[testarosa]

I do appreciate your help. It introduced a new loop in my program (increasing overhead) but it solved my problem.
Thank You.