Question

C#

Now that we've learned about interfaces and inheritance, let's think of a system where we can apply interfaces and inheritance to break down the system into multiple components and any opportunities that allow for sharing code using inheritance.

1. Describe a system that can be broken down into multiple components

2. What are some of the components that make up this system that would be good interfaces?

3. For any classes that you create for your interfaces, is there a good opportunity to use inheritance to share logic for different derived classes?

Answer 1

Having said that Inheritance is one of the main feature in OOPS programming.

lets get a deep dive into it:

let me take automobiles like cars , trucks , bikes etc.

only common among all above is they all are vehicles, which has common attributes like brand name, manufacture year, color,etc and actions like horn, move, etc.

!: vehicle can be a interface

2.as mentioned above common action like horn, start, move ,stop are actions and attributes like names and features etc

let us see how inheritance will work, example program:

using System;

public class ParentClass
{
public ParentClass()
{
Console.WriteLine("Parent Constructor.");
}

public void print()
{
//action
Console.WriteLine("I'm a Parent Class.");
}
}

public class ChildClass : ParentClass
{
public ChildClass()
{
Console.WriteLine("Child Constructor.");
}

public static void Main()
{
ChildClass child = new ChildClass();
//above constructor will first instantiate parent class constructor and the derived class constructor

child.print();
}
}

/*output:

Parent Constructor.
Child Constructor.
I'm a Parent Class.*/

3.

example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Inherit
{
class inheri : vehicle
{
public void Noise()
{
Console.WriteLine("noiseeeeee like horn !! ");
}
static void Main(string[] args)
{
inheri obj = new inheri();
obj.mode();
obj.model();
obj.Noise();
Console.Read();
}
}
class Type
{
public void mode()
{
Console.WriteLine("There are Many Modes of Transport !!");
}
}
class vehicle : Type
{
public void model()
{
Console.WriteLine("brand new model !!");
}
}
}

Eusing System; cusers\lsirigirix076817 source\repos\ConsoleAp using System.collections.Generic; using System. Linq; using System. Text; There are Many Modes of Transport!! brand new model! noiseeeeee like horn!! Enamespace Inherit class inheri: vehicle public void Noise() Console.WriteLine("noiseeeeee like horn!!"); static void Main(stringl] args) inheri obj - new inheri); obj.mode); obj.model); obj.Noise; Console. Read ); class Type public void mode() Console.WriteLine("There are Many Modes of Transport !!"); class vehicle Type public void model() Console.WriteLine("brand new model !!");