Learn 2 CSharp 12

12. Extract uppercase words from a file, extract unique words using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.IO; namespace lrn2CSharp12 { class Program { static void Main( string[ ] args ) { string file = ""; string line = ""; string[ ] words; List<string> upperWords = new List<string>( ); List<string> uniqueWords = new List<string>( ); Console.WriteLine( "Input name of a file to read and count words." ); Console.Write( ":" ); try { file = Console.ReadLine( ); FileStream fs = new FileStream( file, FileMode.Open, FileAccess.Read ); StreamReader sr = new StreamReader( fs ); while ( !sr.EndOfStream ) { line = sr.ReadLine( ); words = null; if ( line.Length != 0 ) words = line.Split( ' ' ); if ( words != null ) { foreach ( string w in words ) { if ( char.IsUpper( w[ 0 ] ) ) upperWords.Add( w ); if ( !uniqueWords.Contains( w ) ) uniqueWords.Add( w ); } } } sr.Close( ); fs.Close( ); } catch { Console.WriteLine( "WTF?!?" ); } Console.WriteLine( "Upper Words:" ); foreach ( string s in upperWords ) { Console.Write( s ); Console.WriteLine( ); } Console.WriteLine( ); Console.WriteLine( "Unique Words:" ); foreach ( string s in uniqueWords ) { Console.Write( s ); Console.WriteLine( ); } Console.WriteLine( ); Console.WriteLine( "Press esc to exit." ); while ( !keyPressHandler( Console.ReadKey( true ) ) ) { Thread.Sleep( 250 ); /* no op */ } } private static Boolean keyPressHandler( ConsoleKeyInfo input ) { if ( input.Key == ConsoleKey.Escape ) return true; return false; } } }

posted by dharh 1:08 AM May 30th, 2011



2011: 5 3 1
2010: 12 9 7 1
2009: 12 11 8 5
2008: 12 5 4 3 2 1
2007: 12 11 10 9 8 7 6 5 4 3 2 1
2006: 12 11 10 9 8 7 6 5 4 3 2 1
2005: 12 10 7 6
2004: 10 9 6 5 4 3 2 1