Assign class object : instance object « Class « C++ Tutorial

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C++ Tutorial » Class » instance object

9.32.10.Assign class object

#include <iostream>

using std::cout;

using std::endl;



class Box {

  public:

    double length;

    double width;

    double height;



    double volume() {

      return length * width * height;

    }

};



int main() {

  Box firstBox = { 80.0, 50.0, 40.0 };



  Box secondBox = firstBox;



  secondBox.length *= 1.1;

  secondBox.width *= 1.1;

  secondBox.height *= 1.1;



  cout << secondBox.length

       << secondBox.width

       << secondBox.height

       << endl;

       

  cout << "Volume of second Box object is " << secondBox.volume()

       << endl;





  return 0;

}

885544
Volume of second Box object is 212960

9.32.instance object
	9.32.1.	Using an empty initializer
	9.32.2.	Automatically converted into MyClass(4): MyClass ob = 4;
	9.32.3.	MyClass ob(4)
	9.32.4.	MyClass ob = MyClass(4);
	9.32.5.	Creates two objects.
	9.32.6.	Object assignment
	9.32.7.	Creating objects on the heap using new
	9.32.8.	Accessing members of objects on the heap
	9.32.9.	Call class constructor without new operator
	9.32.10.	Assign class object

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