Question

Explain the following term:

Constructor overloading

What is meant by constructor overloading? 

Explain the concept of constructor overloading with an example. 

Answer 1

1. Constructor overloading refers to using multiple constructors with various argument lists under the same name. 
2. Example:
   

   Cons()
   {
   }
   Cons(int x, int y)
   {
   }
   Cons(String s)
   {
   }

3. The three constructors in the example share the same name, but differ in parameter types and number of values. Thus, they represent constructor overloading. The constructor invoked depends on the parameter list provided.
4. Example: 
   

   Cons ob = new Cons("Hello World") // This will invoke the constructor, Cons(String s)