Program to illustrate unary operator (increment operator) overloading without return type

Code for Program to illustrate unary operator (increment operator) overloading without return type in C++ Programming

 

 

 

 #include<iostream.h>
 #include<conio.h>

 /*************************************************************************///------------------------------  counter  ------------------------------///*************************************************************************/class counter
    {
       private:
        int count;

       public:
        counter()  { count=0; }
        counter(intvalue)  { count=value; }
        voidoperator++()  { ++count; }
        voidoperator++(int)  { count++; }
        void showdata()  { cout<<count<<endl; }
     };

 main( )
    {
       clrscr();

       counter obj1(2);
       counter obj2(6);
       counter obj3(9);

       cout<<"\n ********* Before Increment *********"<<endl;

       cout<<"\n Data of obj1 is = ";
       obj1.showdata();

       cout<<"\n Data of obj2 is = ";
       obj2.showdata();

       cout<<"\n Data of obj3 is = ";
       obj3.showdata();

       ++obj1;
       obj2++;
       obj3++;

       cout<<"\n ********* After Increment *********"<<endl;

       cout<<"\n Data of obj1 is = ";
       obj1.showdata();

       cout<<"\n Data of obj2 is = ";
       obj2.showdata();

       cout<<"\n Data of obj3 is = ";
       obj3.showdata();

       getch();
       return 0;
    }