Maximum space used in file
<p>I want to produce a list of records from a roster format data file who uses most space (in number of bytes) in descending order.<br>
Also I have a file format as given as below:</p>

<h2>atmp file format:</h2>

<pre><code>permissions num_of_file_if_directory usrid group file/directoyr_size Month Date Time file/directory_name
</code></pre>

<h2>htmp file format:</h2>

<pre><code>permissions num_of_file_if_directory last_name group file/directory_size Month Date Time file/directory_name
</code></pre>

<p>I want to query these files to show which hour of day is most active(i.e. has the most file modifications - current files only - files with a time-of-day modification time).<br>
How can i do these two tasks using java. Please suggest some logic. I have been trying my best. But I keep finding lots of exceptions in code.</p>
