private int user_movie_matrix[][];Th. should be `private int user_movie_matrix[][];.
private int user_movie_matrix[][]; should be private static int user_movie_matrix[][];
cfiltering(numberOfUsers, numberOfMovies); should be new cfiltering(numberOfUsers, numberOfMovies);
Whether or not the code works as intended after these changes is beyond the scope of this answer; there were several syntax/scoping errors.
