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What is constructor overloading?
Constructor overloading is a concept of having more than one constructor with different parameters list, in such a way so that each constructor performs a different task. For e.g. Vector class has 4 types of constructors.
What is the difference between function overloading and constructor overloading?
Functions are the building blocks and Constructor is a special method that have same name as that of class. Constructors are invoked at the time of object creation. When a class has two or more methods with same name but with different parameter list is known as method overloading.
Why do we use constructor overloading?
If we want to have different ways of initializing an object using different number of parameters, then we must do constructor overloading as we do method overloading when we want different definitions of a method based on different parameters.
What is a constructor C++?
A constructor in C++ is a special ‘MEMBER FUNCTION’ having the same name as that of its class which is used to initialize some valid values to the data members of an object. It is executed automatically whenever an object of a class is created.
How do you overload a constructor?
Constructors can be overloaded in a similar way as function overloading. Overloaded constructors have the same name (name of the class) but the different number of arguments. Depending upon the number and type of arguments passed, the corresponding constructor is called. Example 1: Constructor overloading
Can We have more than one constructor in a class?
In C++, We can have more than one constructor in a class with same name, as long as each has a different list of arguments.This concept is known as Constructor Overloading and is quite similar to function overloading . Overloaded constructors essentially have the same name (exact name of the class) and differ by number and type of arguments.
What is function overloading in C++ and how to use it?
C++ allows us to write functions with the same name but with the difference in datatypes or in the number of arguments passed to it, this feature is known as Function Overloading in C++. This feature allows developers to define the functions with the same name within the same scope.
What is constructor in C++ with example?
A constructor is a special type of member function of a class which initializes objects of a class. In C++, Constructor is automatically called when object (instance of class) create. It is special member function of the class because it does not have any return type. How constructors are different from a normal member function?