what is Constructor overloading ?

Yes, till now we know that method overloading. Now we will see constructor overloading.

Points Keep in Mind :

Execution of derived classes starts from base class constructor.******maindatory

Based on signature of the constructor their apporiate parent constructor will be executed

(other wise parent default constructorà parameter less Ex: People() executes).

As we want to create a parameterized constructor we must create parameterless constructor also.

class People

    {

        public string Name{get;set;}

        public int Age {get;set;}

        public People ()

       {

            this.Name=Name;

            this.Age=Age;

               }

       public People (string name)

               {

            this.Name=name;

               }

       public People(int age)

       {

           this.Age = age;

       }

       public People (int age,string name)

               {

           this.Age = age;

           this.Name=name;         

               }

       public People(string name,int age)

       {          

           this.Name = name;

           this.Age = age;

       }        

    }

    class Developer : People

    {

        public Developer():base("kasi",41)   //  base --> people provides 4 signatures.

        {                                                     // People(string name,int age)

            Console.WriteLine("Developer name is :"+Name);

            Console.WriteLine("Developer Age is: " + Age);

        }     
   public Developer(int age)           
 {
          // executes People() constructor as default.        

            Console.WriteLine("Developer is :" + age);

 }             

    }

    class Designer : People

    {

          public Designer(): base(42, "Ravi")  //  People (int age,string name)

        {

            Console.WriteLine("Designer name is:" + Name);

            Console.WriteLine("Designer age is:" + Age);

        }

        public Designer(int age):base(42)  

              // executes People(int age) constructor here.

        {

            Console.WriteLine("Designer age is :" + Age);

        }   

    }