Interfaces in C#

Interfaces can have set of properties,methods,events and indexers but has no implementations. The implementation of each member of the interfaces will be created in the child classes.So we may see all these vividly below.

  • An interface defines the signature of properties,methods,events and indexers but not an implementations.
  • Interface members are public by default.So don't need to specify access specifiers.
  • Access modifiers of the Interface can't be changed.Because it is Internal by default.
  • The class must be implemented all the properties,methods,events and indexers of the interface if  the class inherits the interface.
  • The implementation of the properties,methods,events and indexers in the class must have the access specifier public.
  • Object can't be created for an Interface.
(e.g)

using System;
public class Program
{
public static void Main()
{
Child child = new Child();
child.Show();
child.ShowAge();
child.ShowName();
}
}

interface IFather
{
void ShowName();
}

interface IMother
{
void ShowAge();

}

class Child:IMother,IFather
{
 public void ShowName()
 {
 Console.WriteLine("Father function");
 }
   public void ShowAge()
   {
   Console.WriteLine("Mother function");
   }
public void Show()
{
Console.WriteLine("Child");
}
}

Output

Child
Mother function
Father function

Comments

Post a Comment

Popular posts from this blog

Types of Architects

 1.Infrastructure Architect 2.Software Architect 3.Enterprise Architect Now we can see the above with some more detail. 1.Infrastructure Architect                  This architect is responsible for all non-software components such as Network,VM and so on. 2.Software Architect                This architect always looks at the  end result first, and only the starts looking at technologies, methodologies etc. They focus on fast, secure, reliable and easy to maintain software.
Read more

Basic measurements

In this lesson we are going to learn about some basic measurements.We must know about these measurements . Because these are essential in our regular day to day life.If we don't know this we are may cheated. 1 centimetre=10millimetre 1metre=100 centimetre 1kilometre=1000 metre Km->m(1000)->cm(100)->mm(10) 1 feet=30.48 centimetre 1 inch=2.54 centimetre
Read more

Search html table contents based on its td using Jquery

In this session we are going to see about searching the specific text in the html table.This is very useful most of the times rather bind data each time while searching.So here i have one textbox and one html table .In our case we have to display the input text from the table if exists.So here we go Jquery var findtext =$('#txtsearch').val(); if($.trim(findtext)!=' ') { $("#tbltext tbody tr").hide(); $('#tbltext tbody tr').each(function () { if ($.trim($(this).find('td').eq(1).text()) == $.trim(findtext)) { $(this).show(); } }); } else { $("#tbltext tbody tr").show(); } HTML <input type='text' id ='txtsearch'> </br> <table id='tbltext' > <thead> <tr> <th>No.</th><th>Name</th><th>Age</th> </tr> </thead> <tbody> <tr><td>1</td><td>Hello</td><td>10</td...
Read more