using System;
using System.Collections;
//product
public class Computer
{
private string Type;
private Hashtable info=new Hashtable ();
public Computer(string type)
{
Type=type;
Console .WriteLine ("Conputer "+type+" is Builded!");
}
public string this[string key]
{
get
{
return (string)info[key];
}
set
{
info[key]=value;
}
}
public void Show()
{
Console .WriteLine ("this is a computer of "+Type+" :");
Console .WriteLine (" "+info["cpu"]);
Console .WriteLine (" "+info["ram"]);
}
}
//Builder
public abstract class Builder
{
protected Computer computer;
public Computer Computpter
{
get
{
return computer;