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| using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Client
{
public static void Main()
{
IFactory i = new AddFactory();
Math oper = i.CreateOperation();
oper.A = 5;
oper.B = 10;
Console.WriteLine(oper.DoTheMath());
i = new SubFactory();
oper = i.CreateOperation();
oper.A = 10;
oper.B = 3;
Console.WriteLine(oper.DoTheMath());
Console.Read();
}
}
class Math
{
double _a;
double _b;
public double A
{
set { _a = value; }
get { return _a; }
}
public double B
{
set { _b = value; }
get { return _b; }
}
public virtual double DoTheMath()
{
return 0;
}
}
class Add : Math
{
public override double DoTheMath()
{
return A + B;
}
}
class Sub : Math
{
public override double DoTheMath()
{
return A - B;
}
}
interface IFactory
{
Math CreateOperation();
}
class AddFactory : IFactory
{
public Math CreateOperation()
{
return new Add();
}
}
class SubFactory : IFactory
{
public Math CreateOperation()
{
return new Sub();
}
}
}
|
