Create a method overloading with example

Refer below article

https://www.c-sharpcorner.com/UploadFile/0c1bb2/method-oveloading-and-overriding-C-Sharp/

Method Overloading is the common way of implementing polymorphism. It is the ability to redefine a function in more than one form. A user can implement function overloading by defining two or more functions in a class sharing the same name. C# can distinguish the methods with different method signatures. i.e. the methods can have the same name but with different parameters list (i.e. the number of the parameters, order of the parameters, and data types of the parameters) within the same class. 

• Overloaded methods are differentiated based on the number and type of the parameters passed as arguments to the methods.
• You can not define more than one method with the same name, Order and the type of the arguments. It would be compiler error.
• The compiler does not consider the return type while differentiating the overloaded method. But you cannot declare two methods with the same signature and different return type. It will throw a compile-time error. If both methods have the same parameter types, but different return type, then it is not possible.

Why do we need Method Overloading?

If we need to do the same kind of the operation in different ways i.e. for different inputs. In the example described below, we are doing the addition operation for different inputs. It is hard to find many different meaningful names for single action.

Different ways of doing overloading methods- 
Method overloading can be done by changing:  

1. The number of parameters in two methods.
2. The data types of the parameters of methods.
3. The Order of the parameters of methods.

Output: 

sum of the two integer value : 3
sum of the three integer value : 6

Hello,

Method Overloading l simple Code

void Area (float r);
void Area(float l, float b);
void Area(float a, float b, float c);

using System;
 
namespace method_overloading_polymorphism
{
    Class Program
    {
        Public class Shape
        {
            Public void Area (float r)
            {
                float a = (float)3.14 * r;
                // here we have used function overload with 1 parameter.
                Console.WriteLine ("Area of a circle: {0}",a);
            }
 
            Public void Area(float l, float b)
            {
                float x = (float)l* b;
                // here we have used function overload with 2 parameters.
                Console.WriteLine ("Area of a rectangle: {0}",x);
 
            }
 
            public void Area(float a, float b, float c)
            {
                float s = (float)(a*b*c)/2;
                // here we have used function overload with 3 parameters.
                Console.WriteLine ("Area of a circle: {0}", s);
            }
        }
 
        Static void Main (string[] args)
        {
            Shape ob = new Shape ();
            ob.Area(2.0f);
            ob.Area(20.0f,30.0f);
            ob.Area(2.0f,3.0f,4.0f);
            Console.ReadLine ();
        }
    }
} 

Hello Naresh, 

Refer below article

https://www.c-sharpcorner.com/UploadFile/0c1bb2/method-oveloading-and-overriding-C-Sharp/

We create overloaded version of a method, when we want to perform different actions based on the method signature.

For example, C# extension methods on Collections (IEnumerable) like Sort() methods has 4 overloaded versions

So, microsoft heavily use the method overloading concept, similarly you can use as well.

Further to all answers already provided, in my opinion, the body (the code) of the method should not be duplicated in case of method overloading.

Given below are two separate implementations of sample code given by Vishal Yelve.

public class MethodOverloading 
{    
  public int add(int a, int b)  	  //two int type Parameters method  
  {    
	return a + b;    
  }    

  public int add(int a, int b,int c)  //three int type Parameters with same method same as above  
  {    
	int result = add(a, b);
	return add(result, c);
  }    
}   

Or

public class MethodOverloading 
{    
  public int add(int a, int b)  	  //two int type Parameters method  
  {    
	return add(a, b, 0);    
  }    

  public int add(int a, int b,int c)  //three int type Parameters with same method same as above  
  {    
	return a + b + c;
  }    
}   

Hope I have managed to convey the point correctly.

Hope it helps!

Method Overloading - A method with the same name but different numbers, types, and order of parameters, it is called method overloading.

Method overloading can be achieved by the following:

• By changing the number of parameters in a method
• By changing the order of parameters in a method
• By using different data types for parameters

public class Methodoveloading 
  {    
    public int add(int a, int b)  //two int type Parameters method  
    {    
        return a + b;    
        
    }    
    public int add(int a, int b,int c)  //three int type Parameters with same method same as above  
    {    
        return a + b+c;    
    
    }    
    public float add(float a, float b,float c,float d)  //four float type Parameters with same method same as above two method 
    {    
        return a + b+c+d;    
    
    }    
  }