static void Main(string[] args)
{
Director m_director = new Director();
IBuilder wealthyBuilder = new wealthyBuilder();
IBuilder commonBuilder = new commonBuilder();
m_director.setBuilder(wealthyBuilder);
Computer m_computer = m_director.construct();
m_computer.show();
m_director.setBuilder(commonBuilder);
Computer m_computer2 = m_director.construct();
m_computer2.show();
Console.ReadKey();
}