Init member variables from base class

  

#include <iostream>
using namespace std;

class BaseClass {
  int i, j;
public:
  BaseClass(int x, int y) { 
     i = x; 
     j = y; 
  }
  void showij() { 
  
     cout << i << ' ' << j << '\n'; 
  }
};

class DerivedClass : public BaseClass {
  int k;
public:
  DerivedClass(int a, int b, int c) : BaseClass(b, c) {
    k = a;
  }
  void show() { 
    cout << k << ' '; showij(); 
  }
};

int main()
{
  DerivedClass ob(1, 2, 3);

  ob.show();

  return 0;
}

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Init member variables from base class : Base Class « Class « C++

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