<p>//FileFilter.h</p><p>#ifndef FILE_FILTER_H<br/>#define FILE_FILTER_H<br/>#include <iostream><br/>using namespace std;</p><p>class FileFilter<br/>{<br/>private:<br/> char *queueArray;<br/> int queueSize;<br/> int front;<br/> int rear;<br/> int numItems;<br/>public:<br/> FileFilter(int);<br/> FileFilter(const FileFilter &);<br/> ~FileFilter();</p><p> void enqueue(char);<br/> void dequeue(char &);<br/> bool isEmpty() const;<br/>