Constructor Overloading
Writ a C++ Program to demonstrate Constructor Overloading with Example. Here’s a Simple Program to demonstrate Constructor Overloading with Example in C++ Programming Language.
What is Class and Objects in C++?
- The classes are the most important feature of C++ that leads to Object Oriented programming.
- Class is a user defined data type, which holds its own data members and member functions, which can be accessed and used by creating instance of that class.
- The variables inside class definition are called as data members and the functions are called member functions.
- Class is just a blue print, which declares and defines characteristics and behavior, namely data members and member functions respectively. And all objects of this class will share these characteristics and behavior.
- Objects are instances of class, which holds the data variables declared in class and the member functions work on these class objects.
- Each object has different data variables. Objects are initialized using special class functions called Constructors.
Just like any other function, the constructor of a class may also be overloaded so that even with different number and types of initial values, an object may still be initialized.
Below is the source code for C++ Program to demonstrate Constructor Overloading with Example which is successfully compiled and run on Windows System to produce desired output as shown below :
SOURCE CODE : :
/* C++ Program to demonstrate Constructor Overloading with Example */ #include<iostream> #include<stdlib.h> using namespace std; class Deposit { long int principal; int time; float rate; float totalamount; public: Deposit(); // #1 Deposit(long p, int t, float r); // #2 Deposit(long p, int t); // #3 Deposit(long p, float r); // #4 void calculateamount(void); void display(void); }; Deposit::Deposit() { principal = time = rate = 0.0; } Deposit::Deposit(long p, int t, float r) { principal = p; time = t; rate = r; } Deposit::Deposit(long p, int t) { principal = p; time = t; rate = 0.08; } Deposit::Deposit(long p, float r) { principal = p; time = 2; rate = r; } void Deposit::calculateamount(void) { totalamount = principal + (principal*time*rate)/100; } void Deposit::display(void) { cout<<"\nPrincipal Amount :: Rs."<<principal<<"\n"; cout<<"\nNo. of Years :: "<<time<<" years\n"; cout<<"\nRate of interest :: "<<rate<<"\n"; cout<<"\nTotal Amount :: Rs."<<totalamount<<"\n"; } int main() { Deposit d1; Deposit d2(2000, 2, 0.07f); Deposit d3(4000, 1); Deposit d4(3000, 0.12f); d1.calculateamount(); d2.calculateamount(); d3.calculateamount(); d4.calculateamount(); cout<<"Object D1 Details ::-------------- \n"; d1.display(); cout<<"\nObject D2 Details ::--------------\n"; d2.display(); cout<<"\nObject D3 Details ::----------------\n"; d3.display(); cout<<"\nObject D4 Details ::----------------\n"; d4.display(); return 0; }
OUTPUT : :
/* C++ Program to demonstrate Constructor Overloading with Example */ Object D1 Details ::-------------- Principal Amount :: Rs.0 No. of Years :: 0 years Rate of interest :: 0 Total Amount :: Rs.0 Object D2 Details ::-------------- Principal Amount :: Rs.2000 No. of Years :: 2 years Rate of interest :: 0.07 Total Amount :: Rs.2002.8 Object D3 Details ::---------------- Principal Amount :: Rs.4000 No. of Years :: 1 years Rate of interest :: 0.08 Total Amount :: Rs.4003.2 Object D4 Details ::---------------- Principal Amount :: Rs.3000 No. of Years :: 2 years Rate of interest :: 0.12 Total Amount :: Rs.3007.2 Process returned 0
Above is the source code and output for C++ Program to demonstrate Constructor Overloading with Example which is successfully compiled and run on Windows System to produce desired output.
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Thanks for reading the post….
thank interesting example bro