Explain the process of using the constructor, C/C++ Programming

Assignment Help:

Using the Constructor

There are basically three ways of creating and initializing the object. The first way to call the constructor is explicitly as :

                                boxclass bigbox = boxclass ( 1,1,25,79);

This statement makes an object with the name bigbox and initializes the data members with the parameters passed to the constructor function. The above object can also be formed with an implicit call to the constructor :

                boxclass bigbox(1,1,25,79);

Both the statements given above are equivalent. Yet, another way of creating and initializing an object is by direct assignment of the data item to the object name. But, this approach works if there is only single data item in the class. This is obvious because we cannot allocate more than one value at a time to a variable.

e.g.

                class counter

                 {

                   public :

                                                counter ( int c)   // constructor.

                                                 {

                                                                count = c;

                                                 };

                   private :

                                                int  count;

 

 };

 

 


Related Discussions:- Explain the process of using the constructor

C program to maintain database of employees, Aim: To implement a program t...

Aim: To implement a program to maintain information of employees in an educational institute using inheritance. Code:                       class staff {

Explain floating literal, Floating  literal They can be written in comm...

Floating  literal They can be written in common decimal as well as scientific notation (floating point representation). By default it is of type double. F, L is applied only to

Add guts to vs 2008 c++ windows service, Add guts to VS 2008 C++ windows se...

Add guts to VS 2008 C++ windows service Project Description: I have a shell windows32 service written in 2008 VS C++. I want the functionality part started. Need someone too

Function returning object, F u nction Returning Object: This program ...

F u nction Returning Object: This program is like to the previous program except the function returns object.  The main rule to be remembered is the function returning obj

Explain virtual functions, Virtual Functions The keyword virtual was pr...

Virtual Functions The keyword virtual was previously used to resolve ambiguity for a class derived from two classes, both having a common ancestor. These classes are known as v

Use of a windows box, This program requires the use of a windows box, no co...

This program requires the use of a windows box, no console applications are allowed. Prepare for Christmas now.  Each year, Reindeer Gift Emporium publishes a Christmas price list

Asdas, Ask question #Miniasdasmum 100 words accepted#

Ask question #Miniasdasmum 100 words accepted#

Function that has two int parameters number , Write a function that has two...

Write a function that has two int parameters num and n, and returns TRUE when the nth bit in num is 1, otherwise FALSE. This function should use the function in the above problem.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd