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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. class Base {
  6. public:
  7.     int rn;
  8.     string nm, bg, dob;
  9.  
  10.     Base() {
  11.         cin.ignore();
  12.         cout << "Enter name: ";
  13.         getline(cin, nm);
  14.  
  15.         cin.ignore();
  16.         cout << "Enter date of birth: ";
  17.         getline(cin, dob);
  18.         cout << "Enter blood group: ";
  19.         getline(cin, bg);
  20.         try
  21.         {
  22.             if(rn==0)
  23.             {
  24.                 throw "Illegal instruction";
  25.             }
  26.             cout << "Enter roll no: ";
  27.             cin >> rn;
  28.         }
  29.         catch(...)
  30.         {
  31.             cout<<"catch exception";
  32.         }
  33.     }
  34.  
  35.     ~Base() {
  36.         cout << "Base class destructor executed." << endl;
  37.     }
  38.  
  39.     friend class Derived;
  40. };
  41.  
  42. class Derived {
  43. public:
  44.     string c, d;
  45.     static string add;
  46.     static string cn;
  47.  
  48.     Derived() {
  49.         cin.ignore();
  50.         cout << "Enter class name: ";
  51.         getline(cin, c);
  52.         cout << "Enter division: ";
  53.         getline(cin, d);
  54.     }
  55.  
  56.     Derived(const Derived &obj) {
  57.         this->c = obj.c;
  58.         this->d = obj.d;
  59.     }
  60.  
  61.     void fun() {
  62.         cout << "Enter contact details: ";
  63.         getline(cin, cn);
  64.         cout << "Enter address: ";
  65.         getline(cin, add);
  66.     }
  67.  
  68.     void display(Base &b) {
  69.         cout << "Name: " << b.nm << endl;
  70.         cout << "Roll no: " << b.rn << endl;
  71.         cout << "Date of birth: " << b.dob << endl;
  72.         cout << "Blood group: " << b.bg << endl;
  73.         cout << "Class name: " << c << endl;
  74.         cout << "Division: " << d << endl;
  75.         cout << "Contact no: " << cn << endl;
  76.         cout << "Address: " << add << endl;
  77.     }
  78. };
  79.  
  80. // Static member initialization
  81. string Derived::add = "";
  82. string Derived::cn = "";
  83.  
  84. int main() {
  85.     // Dynamic allocation for Base and Derived objects
  86.     Base *b = new Base();
  87.     Derived *d = new Derived();
  88.  
  89.     d->fun();
  90.     d->display(*b);
  91.  
  92.     delete b;
  93.     delete d;
  94.  
  95.     // Allocating second set of objects
  96.     Base *b1 = new Base();
  97.     Derived *d1 = new Derived();
  98.  
  99.     d1->fun();
  100.     d1->display(*b1);
  101.  
  102.     delete b1;
  103.     delete d1;
  104.  
  105.     return 0;
  106. }
Success #stdin #stdout 0s 5284KB
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stdin
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Standard input is empty
stdout
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Enter name: Enter date of birth: Enter blood group: catch exceptionEnter class name: Enter division: Enter contact details: Enter address: Name: 
Roll no: 0
Date of birth: 
Blood group: 
Class name: 
Division: 
Contact no: 
Address: 
Base class destructor executed.
Enter name: Enter date of birth: Enter blood group: catch exceptionEnter class name: Enter division: Enter contact details: Enter address: Name: 
Roll no: 0
Date of birth: 
Blood group: 
Class name: 
Division: 
Contact no: 
Address: 
Base class destructor executed.
https://ideone.com/vtioAi
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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