C#/C# Training

[C#] 다형성 예제

군우 2018. 5. 10. 10:56


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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace ConsoleApplication1
{
    public interface IRemoteControl{
        void PowerOn();
        void PowerOff();
        void ChannelUp();
        void ChannelDown();
    }
 
    class TVRemotemain
    {
        static void Main(string[] args)
        {
            IRemoteControl irc1 = new SSTVRemote();
            irc1.PowerOn();
            irc1.PowerOff();
            irc1.ChannelUp();
            irc1.ChannelDown();
 
            IRemoteControl irc2 = new DWTVRemote();
            irc2.PowerOn();
            irc2.PowerOff();
            irc2.ChannelUp();
            irc2.ChannelDown();
 
            IRemoteControl irc3 = new HDTVRemote();
            irc3.PowerOn();
            irc3.PowerOff();
            irc3.ChannelUp();
            irc3.ChannelDown();
        }
    }
 
    public class SSTVRemote : IRemoteControl
    {
        protected int nChannel = 0;
        protected bool bPower = false;
        public void PowerOn()
        {
            bPower = true;
            Console.WriteLine("SS TV 전원 ON");
        }
        public void PowerOff()
        {
            bPower = false;
            Console.WriteLine("SS TV 전원 off");
        }
        public void ChannelUp()
        {
            nChannel++;
            Console.WriteLine("SS TV Channel up " + nChannel);
        }
        public void ChannelDown()
        {
            nChannel--;
            Console.WriteLine("SS TV Channel down " + nChannel);
        }
    }
 
    public class DWTVRemote : IRemoteControl
    {
        protected int nChannel = 0;
        protected bool bPower = false;
        public void PowerOn()
        {
            bPower = true;
            Console.WriteLine("DW TV 전원 ON");
        }
        public void PowerOff()
        {
            bPower = false;
            Console.WriteLine("DW TV 전원 off");
        }
        public void ChannelUp()
        {
            nChannel++;
            Console.WriteLine("DW TV Channel up " + nChannel);
        }
        public void ChannelDown()
        {
            nChannel--;
            Console.WriteLine("DW TV Channel down " + nChannel);
        }
    }
 
    public class HDTVRemote : IRemoteControl
    {
        protected int nChannel = 0;
        protected bool bPower = false;
        public void PowerOn()
        {
            bPower = true;
            Console.WriteLine("HD TV 전원 ON");
        }
        public void PowerOff()
        {
            bPower = false;
            Console.WriteLine("HD TV 전원 off");
        }
        public void ChannelUp()
        {
            nChannel++;
            Console.WriteLine("HD TV Channel up " + nChannel);
        }
        public void ChannelDown()
        {
            nChannel--;
            Console.WriteLine("HD TV Channel down " + nChannel);
        }
    }
}
 
cs




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