コード例 #1
0
        static void Main(string[] args)
        {
            Octagon     octagon = new Octagon();
            IDrawToForm form    = octagon;

            form.Draw();

            IDrawToMemory memory = octagon;

            memory.Draw();

            IDrawToPrinter printer = octagon;

            printer.Draw();

            // Сокращенная нотация, если переменная интерфейса не нужна
            ((IDrawToPrinter)octagon).Draw();

            // Можно было бы также использовать ключевое слово as
            if (octagon is IDrawToMemory)
            {
                ((IDrawToMemory)octagon).Draw();
            }
            Console.ReadLine();
        }
コード例 #2
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
            Octagon oct = new Octagon();

            Console.WriteLine(oct);

            // We now must use casting to access the Draw()
            // members.
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            // Shorthand notation if you don't need
            // the interface variable for later use.
            ((IDrawToPrinter)oct).Draw();

            // Could also use the "as" keyword.
            if (oct is IDrawToMemory dtm)
            {
                dtm.Draw();
            }

            Console.ReadLine();
        }
コード例 #3
0
ファイル: Program.cs プロジェクト: trollric/Csharp_chp3
        static void Main(string[] args)
        {
            Console.WriteLine("****** Fun with Interface Name Clashes ******\n");
            // All of these invocations call
            // the same Draw() method.
            Octagon     oct     = new Octagon();
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();
            IDrawToPrinter itfPrinter = (IDrawToPrinter)oct;

            itfPrinter.Draw();
            IDrawToMemory itfMemory = (IDrawToMemory)oct;

            itfMemory.Draw();
            // We now must use casting to acces the Draw() members.
            Console.WriteLine();
            ((IDrawToPrinter)oct).Draw();
            // Could also use the is keyword
            if (oct is IDrawToMemory)
            {
                ((IDrawToMemory)oct).Draw();
            }
            Console.ReadLine();
        }
コード例 #4
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");

            //  All of these invocations call the
            //  same Draw() method.
            Octagon oct = new Octagon();

            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();
            //  Shorthand notation if you don't need
            //  the interface variable for later use.
            ((IDrawToForm)oct).Draw();

            //  Could also use the "is" keyword.
            if (oct is IDrawToForm dtm)
            {
                dtm.Draw();
            }

            IDrawToPrinter itfPrinter = (IDrawToPrinter)oct;

            itfPrinter.Draw();

            IDrawToMemory itfMemory = (IDrawToMemory)oct;

            itfMemory.Draw();
        }
コード例 #5
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
            Octagon octagon = new Octagon("Octagon");
            Circle  circle  = new Circle("Circle");

            // We now must use casting to access the Draw()
            // members.
            IDrawToForm drawToForm = (IDrawToForm)octagon;

            drawToForm.Draw();

            drawToForm = (IDrawToForm)circle;
            drawToForm.Draw();

            // Shorthand notation if you don't need
            // the interface variable for later use.
            ((IDrawToPrinter)octagon).Draw();

            // Will draw twice just to show use of as keyword
            if (octagon is IDrawToMemory)
            {
                ((IDrawToMemory)octagon).Draw();
                (octagon as IDrawToMemory).Draw();
            }

            Console.ReadLine();
        }
コード例 #6
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
            Octagon oct = new Octagon();

            // This is now a compiler error!
            // oct.Draw();

            // We now must use casting to access the Draw()
            // members.
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            // Shorthand notation if you don't need
            // the interface varaible for later use.
            ((IDrawToPrinter)oct).Draw();

            // Always a good practice to test
            // before extracting an interface.
            if (oct is IDrawToMemory)
            {
                ((IDrawToMemory)oct).Draw();
            }

            Console.ReadLine();
        }
コード例 #7
0
ファイル: Program.cs プロジェクト: lrymal/Self-Study-C-Sharp
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface name clashes *****\n");

            Octagon oct = new Octagon();

            ////all of these use the same Draw() method!
            //IDrawToForm itfForm = (IDrawToForm)oct;
            //itfForm.Draw();
            //IDrawToPrinter itfPrinter = (IDrawToPrinter)oct;
            //itfPrinter.Draw();
            //IDrawToMemory itfMemory = (IDrawToMemory)oct;
            //itfMemory.Draw();

            //using casting to access Draw()...
            IDrawToForm itfForm = (IDrawToForm)oct;
            itfForm.Draw();
            //shorthand that would work if you don't need the "itfForm" variable above
            ((IDrawToPrinter)oct).Draw();
            //using the "is" keyword
            if (oct is IDrawToMemory)
            {
                ((IDrawToMemory)oct).Draw();
            }

            Console.ReadLine();

        }
コード例 #8
0
        static void Main(string[] args)
        {
            Console.WriteLine("*** Fun with intarface name calshes ***\n");
            Octagon oct = new Octagon();

            IDrowToForm idtf = (IDrowToForm)oct;

            idtf.Draw();

            IDrawToMemory idtm = (IDrawToMemory)oct;

            idtm.Draw();

            IDrawToPrinter idtp = (IDrawToPrinter)oct;

            idtp.Draw();

            ((IDrowToForm)oct).Draw();

            if (oct is IDrawToPrinter dp)
            {
                dp.Draw();
            }

            Console.ReadLine();
        }
コード例 #9
0
        static void Main(string[] args)
        {
            Octagon oct = new Octagon();
            //Для доступа к членам Draw() должно использоваться приведение.
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            //Сокращенная форма, если переменная интерфейса не нужна.
            ((IDrawToMemory)oct).Draw();
        }
コード例 #10
0
ファイル: Program.cs プロジェクト: ding99/CSharpSyntax
        static void WhichInterface()
        {
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("=> which interface");

            Octagon oct = new Octagon();

            ((IDrawToForm)oct).Draw();
            ((IDrawToMemory)oct).Draw();
            ((IDrawToPrinter)oct).Draw();
        }
コード例 #11
0
        static void Main(string[] args) {
            Octagon oct = new Octagon();
            IDrawToForm itForm = (IDrawToForm)oct;
            IDrawToMemory itMemory = (IDrawToMemory)oct;
            IDrawToPrinter itPrinter = (IDrawToPrinter)oct;

            //oct.Draw(); ERROR, interfaces are implemented explicitely
            itForm.Draw();
            itMemory.Draw();
            itPrinter.Draw();

            Console.ReadLine();
        }
コード例 #12
0
ファイル: Program.cs プロジェクト: newhuaszh/WPF
        static void Main(string[] args)
        {
            Octagon oct = new Octagon();
            //oct.Draw();
            IDrawToForm itfForm = (IDrawToForm)oct;
            itfForm.Draw();

            IDrawToMemory itfMemory = (IDrawToMemory)oct;
            itfMemory.Draw();

            IDrawToPrinter itfPrinter = (IDrawToPrinter)oct;
            itfPrinter.Draw();

            Console.ReadLine();
        }
コード例 #13
0
ファイル: Program.cs プロジェクト: wordtinker/c-sharp
 static void Main(string[] args)
 {
     Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
     // All of these invocations call the
     // same Draw() method!
     Octagon oct = new Octagon();
     //oct.Draw() is no longer available w/o cast
     IDrawToForm itfForm = (IDrawToForm)oct;
     itfForm.Draw();
     IDrawToPrinter itfPriner = (IDrawToPrinter)oct;
     itfPriner.Draw();
     IDrawToMemory itfMemory = (IDrawToMemory)oct;
     itfMemory.Draw();
     Console.ReadLine();
 }
コード例 #14
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun With Interface Name Clashes *****\n");
            Octagon oct = new Octagon();

            // We now myst use casting to access the Draw() members
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            // Shorthand notation if you don't need the inerface
            // variable for later use
            ((IDrawToPrinter)oct).Draw();

            Console.ReadLine();
        }
コード例 #15
0
ファイル: Program.cs プロジェクト: Jelier/Practice_OOP_Lab6
        static void Main(string[] args)
        {
            Octagon oct = new Octagon();

            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            ((IDrawToMemory)oct).Draw();

            if (oct is IDrawToPrinter)
            {
                ((IDrawToPrinter)oct).Draw();
            }
            Console.ReadLine();
        }
コード例 #16
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Claches *****\n");
            Octagon oct = new Octagon();

            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            ((IDrawToPrinter)oct).Draw();
            if (oct is IDrawToMemory dtm)
            {
                dtm.Draw();
            }
            Console.ReadLine();
        }
コード例 #17
0
ファイル: Program.cs プロジェクト: burnakov/Troelsen
        static void Main(string[] args)
        {
            Console.WriteLine("**** Fun with interface name clashes ****");
            Octagon     oct     = new Octagon();
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            ((IDrawToMemory)oct).Draw();

            if (oct is IDrawToPrinter)
            {
                ((IDrawToPrinter)oct).Draw();
            }

            Console.ReadLine();
        }
コード例 #18
0
ファイル: Program.cs プロジェクト: tuturox91/BookApp
        static void Main(string[] args)
        {
            Octagon     oct  = new Octagon();
            IDrawToForm octF = (IDrawToForm)oct;

            octF.Draw();

            IDrawToMemory octM = (IDrawToMemory)octF;

            octM.Draw();

            IDrawToPrinter octP = (IDrawToPrinter)octF;

            octM.Draw();

            Console.ReadLine();
        }
コード例 #19
0
ファイル: Program.cs プロジェクト: wordtinker/c-sharp
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
            // All of these invocations call the
            // same Draw() method!
            Octagon oct = new Octagon();
            //oct.Draw() is no longer available w/o cast
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();
            IDrawToPrinter itfPriner = (IDrawToPrinter)oct;

            itfPriner.Draw();
            IDrawToMemory itfMemory = (IDrawToMemory)oct;

            itfMemory.Draw();
            Console.ReadLine();
        }
        static void Main(string[] args)
        {
            Octagon octagon = new Octagon();

            IDrawForm itfForm = (IDrawForm)octagon;

            itfForm.Draw();

            IDrawMemory itfMemory = (IDrawMemory)octagon;

            itfMemory.Draw();

            IDrawToPrinter itfPrinter = (IDrawToPrinter)octagon;

            itfPrinter.Draw();

            Console.ReadLine();
        }
コード例 #21
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");

            Octagon oct = new Octagon();

            IDrawToForm itfForm = (IDrawToForm) oct;
            itfForm.Draw();

            ((IDrawToPrinter) oct).Draw();

            if (oct is IDrawToMemory)
            {
                ((IDrawToMemory) oct).Draw();
            }

            Console.ReadLine();
        }
コード例 #22
0
ファイル: Program.cs プロジェクト: usedflax/flaxbox
        static void Main( string[] args )
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
            Octagon oct = new Octagon();

            // We now must use casting to access the Draw()
            // members.
            IDrawToForm itfForm = (IDrawToForm)oct;
            itfForm.Draw();

            // Shorthand notation if you don't need
            // the interface variable for later use.
            ((IDrawToPrinter)oct).Draw();

            // Could also use the "as" keyword.
            if (oct is IDrawToMemory)
                ((IDrawToMemory)oct).Draw();

            Console.ReadLine();
        }
コード例 #23
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Clashes *****");

            Octagon oct = new Octagon();

            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            //Сокращенная форма
            ((IDrawToMemory)oct).Draw();

            // Можно с is
            if (oct is IDrawToPrinter dtm)
            {
                dtm.Draw();
            }

            Console.ReadLine();
        }
コード例 #24
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
            Octagon oct = new Octagon();

            //  现在必须使用转换来访问Draw()成员
            IDrawToForm itform = (IDrawToForm)oct;

            itform.Draw();

            //  如果以后不需要接口变量,可以简化成这个形式
            ((IDrawToPrinter)oct).Draw();

            //  也可以用"is"关键字
            if (oct is IDrawToMemory)
            {
                ((IDrawToMemory)oct).Draw();
            }

            Console.ReadLine();
        }
コード例 #25
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");

            // All of these invocations call the
            // same Draw() method!
            Octagon oct = new Octagon();

            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            IDrawToMemory itfMemory = (IDrawToMemory)oct;

            itfMemory.Draw();

            IDrawToPrinter itfPrinter = (IDrawToPrinter)oct;

            itfPrinter.Draw();

            // Must use casting to access the Draw() when explicitly implemented.
            IDrawToForm itfForm2 = (IDrawToForm)oct;

            itfForm2.Draw();

            // Shorthand notation if you don't need
            // the interface variable for later use.
            ((IDrawToMemory)oct).Draw();

            // Could also use the "is" keyword.
            if (oct is IDrawToPrinter)
            {
                ((IDrawToPrinter)oct).Draw();
            }

            Console.ReadLine();
        }
コード例 #26
0
        static void Main(string[] args)
        {
            Console.WriteLine("***** Fun with Interface Name Clashes *****\n");
            Octagon     oct     = new Octagon();
            IDrawToForm itfForm = (IDrawToForm)oct;

            itfForm.Draw();

            /*
             * ((IDrawToPrinter)oct).Draw();
             *
             * if (oct is IDrawToMemory)
             *  ((IDrawToMemory)oct).Draw();
             */
            IDrawToPrinter itfPriner = (IDrawToPrinter)oct;

            itfPriner.Draw();

            IDrawToMemory itfMemory = (IDrawToMemory)oct;

            itfMemory.Draw();

            Console.ReadLine();
        }