A variable that is the name of an array is just a reference to an instance of System.Array. Since it is a reference type, when you pass an array to a method, you pass a copy of the reference. This means that the method has the ability to read and write elements of the array.
Here’s a method that accepts an array as an input parameter. The code demonstrates that you can read from and write to elements of the array.
1 2 3 4 5 6 7 8 9 10 11 12 | public static void DumpMovieInfo(MovieInfo[] movieList){ for (int i = 0; i < movieList.Length; i++) { // Read element of the array Console.WriteLine("{0} ({1}), {2}", movieList[i].Title, movieList[i].Year, movieList[i].Director); // Rewrite element movieList[i].Title = movieList[i].Title.ToUpper(); movieList[i].Director = movieList[i].Director.ToUpper(); }} |
You would call the method as follows:
1 2 3 4 5 6 7 | MovieInfo[] movies = { new MovieInfo("The African Queen", 1951, "John Huston"), new MovieInfo("Casablanca", 1942, "Michael Curtiz"), new MovieInfo("The Godfather", 1972, "Francis Ford Coppola")};Movie.DumpMovieInfo(movies);Movie.DumpMovieInfo(movies); |
