Explain syntax rules for writing constructor functions, C/C++ Programming

Assignment Help:

Syntax rules for writing constructor functions

  • Its name must be similar as that of the class to which it belongs.
  • It is declared with no return type (not even void). However, it will implicitly return a temporary copy of the instance itself that is being formed.
  • It cannot be declared static (a function which does not belong to a particular example), cost( in which you cannot make changes).
  • It should have public or protected access within the class. Only in very rare circumstances the programmers declare it in private section.

e.g.

class  boxclass

                 {

                  public :

                boxclass ( int x1, int y1, int x2, int y2);

                void disp(void);

                  private :

                                                int x1, y1;

int x2, y2 ;

 

                 };

 

boxclass::boxclass(int ax1,int ay1, int ax2, int ay2)

                 {

                                x1 = ax1 ;

                                y1 = ay1 ;

                                x2 = ax2 ;

                                y2 = ay2 ;

       }

 


Related Discussions:- Explain syntax rules for writing constructor functions

Explain about the floating point constants in c language, Explain about the...

Explain about the Floating point Constants in c language? A floating point constant is the number that contains either a fraction or decimal part. If an exponent is present its

Write a program to sum any pair of numbers, Write a C++ program that reads ...

Write a C++ program that reads from keyboard 3 integers, with proper input prompt, and then displays the maximum sum of any pair of numbers from these three. If the 3 numbers are 5

Luminous jewels polishing necklace, 1.jewels can only be removed for polish...

1.jewels can only be removed for polishing from either end of the necklace. 2.cost of polishing=sitting number*colour value of jewels.

Wap in c to find determinant of matrix order 3x3 , Normal 0 fal...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Array, #an array that accept input and gives an output

#an array that accept input and gives an output

What does throw; (with no exception object after the throw , What does thro...

What does throw; (with no exception object after the throw keyword) mean? Where would I employ it? A: You should see code that looks something like this: class MyException

Difference between mutex and binary semaphore, Semaphore is used to synchro...

Semaphore is used to synchronize processes. whereas mutex is used to give synchronization among threads running in the similar process.

Program, Write a ‘C’ program to accept any 3 digit integer number from the ...

Write a ‘C’ program to accept any 3 digit integer number from the keyboard and display the word equivalent representation of the given number.

Write procedure that compute recursive method, A function f is defined by t...

A function f is defined by the rule that f(n) = n if 0≤n≤3 and f(n) = f(n - 1) + 2f(n - 2) + 3f(n - 3) if n> 3. (a) Write a procedure that computes f by means of a recursive pro

Inheritance and polymorphism, The zipped folder int_collection.zip (downloa...

The zipped folder int_collection.zip (downloaded from Blackboard) contains an abstract class AbstractIntCollection and two interfaces: IntList and IntStack. The abstract class cont

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