Write a C++ Program to Show Overload Constructor Example

By | 31.12.2016

Overload Constructor Example


Write a C++ Program to Show Overload Constructor Example. Here’s a Simple C++ Program to Show Overload Constructor Example in C++ Programming Language.


What is Class and Objects in C++?


  • 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.

Below is the source code for C++ Program to Show Overload Constructor Example which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :


/*  C++ Program to Show Overload Constructor Example  */

#include<iostream>
using namespace std;

class test
{
    private:
        int a;
        char b;
        double c;
    public:
        test(int q)
        {
            a=q;
            b= '0';
            c=0;
        }

        test(char q)
        {
            a=0;
            b= q;
            c=0;
        }

        test(double q)
        {
            a=0;
            b='0';
            c=q;
        }

        test(int q1, char q2, double q3)
        {
            a=q1;
            b=q2;
            c=q3;
        }

        void show()
        {
            cout<<"\nValue of a: "<<a<<endl;
            cout<<"\nValue of b: "<<b<<endl;
            cout<<"\nValue of c: "<<c<<endl<<endl;
        }
};


int main()
{
    test q1(5);
    test q2('t');
    test q3(3.14);
    test q4(4, 'y', 3.45);
    q1.show();
    q2.show();
    q3.show();
    q4.show();

    return 0;
}

OUTPUT : :


/*  C++ Program to Show Overload Constructor Example  */


Value of a: 5

Value of b: 0

Value of c: 0


Value of a: 0

Value of b: t

Value of c: 0


Value of a: 0

Value of b: 0

Value of c: 3.14


Value of a: 4

Value of b: y

Value of c: 3.45


Process returned 0

Above is the source code and output for C++ Program to Show Overload Constructor Example which is successfully compiled and run on Windows System to produce desired output.

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