Base class and derived class : Base Class « Class « C++

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Base class and derived class
Base class and derived class
  
#include <iostream>
using namespace std;

class BaseClass {
  int i, j;
public:
  void set(int a, int b) { 
     i = a; 
     j = b; 
  }
  void show() { 
     cout << i << " " << j << endl; 
  }
};

class DerivedClass : public BaseClass {
  int k;
public:
  DerivedClass(int x) { 
     k = x; 
  }
  void showk() { 
     cout << k << endl; 
  }
};

int main()
{
  DerivedClass ob(3);

  ob.set(12)// access member of BaseClass
  ob.show();    // access member of BaseClass

  ob.showk();   // uses member of DerivedClass class

  return 0;
}


           
         
    
  
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