// class with multiple constructors
// Michael L. Collard
// 10/14/99


// class with two constructors - one with parameter, one without
// which is invoked depeneds on whether we pass it a parameter
// note that all constructors have the same name

class MyClass {
public:
   MyClass();      // void or default constructor
   MyClass(int);   // constructor with one parameters
   MyClass(int, int); // constructor with two parameters
private:
   int data1_;
   int data2_;
};

// void constructor
MyClass::MyClass(){
  data1_=0;          // assign zeros by default
  data2_=0;
}

// constructor with one parameter
MyClass::MyClass(int data1){
  data1_=data1;
  data2_=0; // only data2_ is assigned zero
}

// constructorw with two parameters
// defined with initializer list
MyClass::MyClass(int data1, int data2): data1_(data1), data2_(data2){}

int main(){
  MyClass ob1;    // void constructor is invoked
  MyClass ob2(2); // one param constructor is invoked
  MyClass ob3(2, 3); // to param constructor is invoked
}