//MyComposite using System; using System.Collections;
//----------------------------------Class FileElement abstract class CFileElement { //FIElds protected string name;
public CFileElement(string name) { this.name=name; }
public abstract void Add(CFileElement e); public abstract void Remove(CFileElement e); public abstract void Display(); };
//Class CFile class CFile:CFileElement { public CFile(string name):base(name){}
public override void Add(CFileElement e) { Console.WriteLine("Can't add any files under a file!"); } public override void Remove(CFileElement e) { Console.WriteLine("Can't remove any sub files!"); } public override void Display() { Console.WriteLine(this.name); } };
//Class CFolder class CFolder:CFileElement { private ArrayList children =new ArrayList();
public CFolder(string name):base(name){}
public override void Add(CFileElement e) { children.Add(e); } public override void Remove(CFileElement e) { children.Remove(e); } public override void Display() { Console.WriteLine(this.name); foreach(CFileElement e in children) { e.Display(); } }
}; //----------------------------------Class Element
//TestApp class TestApp { public static void Main(string[] args) { CFolder root = new CFolder("Z:/"); CFolder afolder=new CFolder("Games/");
