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Program to illustrate template classes

Posted By: Easy Tutor     Category: C++ Programming     Views: 2555

A C++ Program to illustrate template classes.

Code for Program to illustrate template classes in C++ Programming

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

 constint max=20;

 /*************************************************************************///------------------------------  stack  --------------------------------///*************************************************************************/

 template <class T>

 class stack
    {
       private:
        T stk[max];

        int top;

       public:
        stack()  { top=-1; }
        void push(T);
        T pop();
    };

 /*************************************************************************///---------------------------  complex  ---------------------------------///*************************************************************************/class complex
    {
       private:
        float real_part;
        float imaginary_part;

       public:
        complex()  { real_part=0.0;  imaginary_part=0.0; }
        complex(float r,float i)  { real_part=r; imaginary_part=i; }
        friend ostream &operator<<(ostream &o,complex &c);
    };



 /*************************************************************************///---------------------------   push(T)  --------------------------------///*************************************************************************/

 template <class T>
 void stack<T>::push(T data)
    {
       if(top==max-1)
      cout<<"\n Stack is full "<<endl;

       else
      {
         top++;
         stk[top]=data;
      }
    }

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

 template <class T>
 T stack<T>::pop()
    {
       T item;


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

       else
      {
         T item=stk[top];

         top--;
      }

       return item;
    }

 /*************************************************************************//*************************************************************************///---------------------------  complex  ---------------------------------///*************************************************************************//*************************************************************************//*************************************************************************///----------------   &operator<<(ostream &,complex &)  ------------------///*************************************************************************/

 ostream &operator<<(ostream &o,complex &c)
    {
       o<<"\n\t Real Part = "<<c.real_part<<"\t Imaginary Part = "<<
                             c.imaginary_part<<endl;
       return o;
    }

 main()
    {
       clrscr();


       cout<<"\n **********  Integers  ********"<<endl;

       stack<int> s_1;

       s_1.push(10);
       s_1.push(20);
       s_1.push(30);

       cout<<s_1.pop()<<endl;
       cout<<s_1.pop()<<endl;
       cout<<s_1.pop()<<endl;

       cout<<"\n **********  Floats  ********"<<endl;

       stack<float> s_2;

       s_2.push(1.1);
       s_2.push(2.2);
       s_2.push(3.3);

       cout<<s_2.pop()<<endl;
       cout<<s_2.pop()<<endl;
       cout<<s_2.pop()<<endl;

       cout<<"\n **********  Complex Numbers  ********"<<endl;

       complex c_1(1.5,2.5);
       complex c_2(2.5,3.5);
       complex c_3(3.5,4.5);

       stack<complex> s_3;

       s_3.push(c_1);
       s_3.push(c_2);
       s_3.push(c_3);

       cout<<s_3.pop()<<endl;
       cout<<s_3.pop()<<endl;
       cout<<s_3.pop()<<endl;

       getch();
       return 0;
    }
  
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Easy Tutor
Easy Tutor author of Program to illustrate template classes is from United States. Easy Tutor says

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