Is it right strategy for control two similar instrument?

[lotus]

Hi all.

I want to control two different instrtument but have simliar
functionality.
Acually the fisrt one is controlled by using serial communication, and
the other is controlled by LAN communication.
The number of instruments will be extetned by 5 or more.
So If user select instrument (ex. by selection of combo box items), I
must do right procedure of contolling proper instrument.

I want to contol these instrument by same command. so I select
following strategy by using INTERFACE keyword of C#.

Is it right strategy? Is there more powerful method?

---lotus----

In the following code, Console.WriteLi ne is acaully substitution of
sending command to instrument.
-----------Code start-------------------------------
using System;
using System.Collecti ons.Generic;
using System.Text;

namespace ConsoleApplicat ion1
{
class Program
{
static void Main(string[] args)
{
int id = 5;
machine src;
instrument1 ins1 = new instrument1(ref id);
instrument2 ins2 = new instrument2(ref id);

Console.WriteLi ne("Select instrument 1 or 2");
string input = Console.ReadLin e();
if (input =="1")
{
src = ins1;
src.turn_on();
}
else if (input == "2")
{
src = ins2;
src.turn_on();
}
}
}
public interface machine
{
void turn_on();
}
public class instrument1 : machine
{
int id = 3;
public instrument1(ref int id_)
{
id = id_;
Console.WriteLi ne(" instrument 1 is initilized");
}
void machine.turn_on ()
{
Console.WriteLi ne("turn on");
}
}
public class instrument2 : machine
{
int id = 5;
public instrument2(ref int id_)
{
id = id_;
Console.WriteLi ne(" instrument 2 is initilized");
}
void machine.turn_on ()
{
Console.WriteLi ne("power on");
Console.WriteLi ne("I need more step -- plevel 1");
}
}
}

------------------ end of code ----------------

[Jeffrey Hornby]

As an alternative, I would create a base class and inherit from it. This
would allow you to share common functionality:

namespace ConsoleApplicat ion1
{
class Program
{
static void Main(string[] args)
{
int id = 5;
machine src;
instrument1 ins1 = new instrument1(ref id);
instrument2 ins2 = new instrument2(ref id);

Console.WriteLi ne("Select instrument 1 or 2");
string input = Console.ReadLin e();
if (input =="1")
{
src = ins1;
src.turn_on();
}
else if (input == "2")
{
src = ins2;
src.turn_on();
}
}
}
public class machine
{
private int id;

public machine(ref int _id)
{
id = _id;
}
abstract void turn_on();
}
public class instrument1 : machine
{
public instrument1(ref int id_) : base(id_)
{
Console.WriteLi ne(" instrument 1 is initilized");
}
public override void turn_on()
{
Console.WriteLi ne("turn on");
}
}
public class instrument2 : machine
{
public instrument2(ref int id_) : base(id_)
{
id = id_;
Console.WriteLi ne(" instrument 2 is initilized");
}
public override void turn_on()
{
Console.WriteLi ne("power on");
Console.WriteLi ne("I need more step -- plevel 1");
}
}
}

Now you can instantiate objects as either instrument1 or instrument2 but
refer to them as type machine.

--
Jeffrey Hornby
Hornby Consulting, Inc.

"lotus" wrote:

Hi all.

I want to control two different instrtument but have simliar
functionality.
Acually the fisrt one is controlled by using serial communication, and
the other is controlled by LAN communication.
The number of instruments will be extetned by 5 or more.
So If user select instrument (ex. by selection of combo box items), I
must do right procedure of contolling proper instrument.

I want to contol these instrument by same command. so I select
following strategy by using INTERFACE keyword of C#.

Is it right strategy? Is there more powerful method?

---lotus----

In the following code, Console.WriteLi ne is acaully substitution of
sending command to instrument.
-----------Code start-------------------------------
using System;
using System.Collecti ons.Generic;
using System.Text;

namespace ConsoleApplicat ion1
{
class Program
{
static void Main(string[] args)
{
int id = 5;
machine src;
instrument1 ins1 = new instrument1(ref id);
instrument2 ins2 = new instrument2(ref id);

Console.WriteLi ne("Select instrument 1 or 2");
string input = Console.ReadLin e();
if (input =="1")
{
src = ins1;
src.turn_on();
}
else if (input == "2")
{
src = ins2;
src.turn_on();
}
}
}
public interface machine
{
void turn_on();
}
public class instrument1 : machine
{
int id = 3;
public instrument1(ref int id_)
{
id = id_;
Console.WriteLi ne(" instrument 1 is initilized");
}
void machine.turn_on ()
{
Console.WriteLi ne("turn on");
}
}
public class instrument2 : machine
{
int id = 5;
public instrument2(ref int id_)
{
id = id_;
Console.WriteLi ne(" instrument 2 is initilized");
}
void machine.turn_on ()
{
Console.WriteLi ne("power on");
Console.WriteLi ne("I need more step -- plevel 1");
}
}
}

------------------ end of code ----------------

[Nick Hounsome]

The use of an interface is good but since the ID stuff is common you should
probably have an abstract base class as well or instead just to hold that.

There is no reason to use "ref" anywhere.

Use a Dictionary<stri ng,machine> to look up the machine from the id rather
than a switch [then it is just dict[input].turn_on()].

"lotus" <lo*******@gmai l.com> wrote in message
news:11******** **************@ i39g2000cwa.goo glegroups.com.. .

Hi all.

I want to control two different instrtument but have simliar
functionality.
Acually the fisrt one is controlled by using serial communication, and
the other is controlled by LAN communication.
The number of instruments will be extetned by 5 or more.
So If user select instrument (ex. by selection of combo box items), I
must do right procedure of contolling proper instrument.

I want to contol these instrument by same command. so I select
following strategy by using INTERFACE keyword of C#.

Is it right strategy? Is there more powerful method?

---lotus----

In the following code, Console.WriteLi ne is acaully substitution of
sending command to instrument.
-----------Code start-------------------------------
using System;
using System.Collecti ons.Generic;
using System.Text;

namespace ConsoleApplicat ion1
{
class Program
{
static void Main(string[] args)
{
int id = 5;
machine src;
instrument1 ins1 = new instrument1(ref id);
instrument2 ins2 = new instrument2(ref id);

Console.WriteLi ne("Select instrument 1 or 2");
string input = Console.ReadLin e();
if (input =="1")
{
src = ins1;
src.turn_on();
}
else if (input == "2")
{
src = ins2;
src.turn_on();
}
}
}
public interface machine
{
void turn_on();
}
public class instrument1 : machine
{
int id = 3;
public instrument1(ref int id_)
{
id = id_;
Console.WriteLi ne(" instrument 1 is initilized");
}
void machine.turn_on ()
{
Console.WriteLi ne("turn on");
}
}
public class instrument2 : machine
{
int id = 5;
public instrument2(ref int id_)
{
id = id_;
Console.WriteLi ne(" instrument 2 is initilized");
}
void machine.turn_on ()
{
Console.WriteLi ne("power on");
Console.WriteLi ne("I need more step -- plevel 1");
}
}
}

------------------ end of code ----------------

[lotus]

Thank you, Jeffrey and Nick

Actually, I didn't know about abstract and generics.
But from your recommendation. I could know about power of that.

Generic functionality of .Net 2.0 is really fantastic to me.

-lotus-