123
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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace InterfaceHierarchy { class Program { static void Main(string[] args) { SomeClass sc = new SomeClass(); sc.Draw(); sc.Draw1(123); sc.Draw2(123); IAdvancedDraw ifAdvDraw; ifAdvDraw = (IAdvancedDraw)sc; sc.Draw(); sc.Draw1(123); sc.Draw2(123); } } public class SomeClass : IAdvancedDraw { public void Draw() { // throw new NotImplementedException(); } public void Draw1(int someParam) { //throw new NotImplementedException(); } public void Draw2(int someParam) { //throw new NotImplementedException(); } } // interfaces public interface IDrawable { void Draw(); } public interface IAdvancedDraw : IDrawable { void Draw1(int someParam); void Draw2(int someParam); } } |