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Program to illustrate over-riding of base class member function in a derived class

Posted By: Easy Tutor     Category: C++ Programming     Views: 4485

A C++ Program to illustrate over-riding of base class member function in a derived class.

Code for Program to illustrate over-riding of base class member function in a derived class in C++ Programming

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

 /*************************************************************************///------------------------------  stack0  -------------------------------///*************************************************************************/class stack0
    {
       protected:
        int st[25];
        int top;

       public:
        stack0()  { top=-1; }
        void push(int item)  { top++;  st[top]=item; }
        int pop();
    };

 /*************************************************************************///------------------------------  stack1  -------------------------------///*************************************************************************/class stack1:public stack0
    {
       public:
        int pop();
        void push(int);
    };

 /*************************************************************************///-----------------------------  pop( )  --------------------------------///*************************************************************************/

 stack0::pop()
    {
       int item;

       item=st[top];

       top--;

       return item;
    }

 /*************************************************************************///-----------------------------  pop( )  --------------------------------///*************************************************************************/

 stack1::pop()
    {
       int n;

       if(top==-1)
      {
         cout<<" Stack is empty "<<endl;
         n=NULL;
      }

       else
      n=stack0::pop();

       return n;
    }

 /*************************************************************************///-----------------------------  push(int)  -----------------------------///*************************************************************************/void stack1::push(int item)
    {
       if(top==24)
     cout<<" Stack is full "<<endl;

       else
      stack0::push(item);
    }


 main()
    {
       clrscr();

       stack1 obj;

       int n=0;

       obj.push(10);
       obj.push(20);
       obj.push(30);

       n=obj.pop();
       cout<<"\n"<<n<<endl;

       n=obj.pop();
       cout<<n<<endl;;

       getch();
       return 0;
    }
  
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Easy Tutor
Easy Tutor author of Program to illustrate over-riding of base class member function in a derived class is from United States. Easy Tutor says

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