Binary Operator Example using Operator Overloading in C++

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This program defines a class Box which has three private data members: length, breadth, and height, along with several member functions. The member function Volume() calculates the volume of the box and returns it. The member functions Length(), Breadth(), and Height() set the values of length, breadth, and height, respectively. The operator+ overload function overloads the + operator to add two Box objects and return the resulting Box object.

In main(), three Box objects are defined: Box1, Box2, and Box3. The dimensions of Box1 and Box2 are set using the Length(), Breadth(), and Height() member functions. The volumes of Box1 and Box2 are then calculated using the Volume() member function and printed to the console. Finally, Box1 and Box2 are added together using the overloaded + operator, and the volume of the resulting Box3 is calculated and printed to the console.

Source Code

#include<iostream>
using namespace std;
class Box
{
   public:
    float Volume(void)
    {
       return length*breadth*height;
    }
    void Length(float l )
    {
       length=l;
    }
    void Breadth(float b)
    {
       breadth=b;
    }
    void Height(float h)
    {
        height=h;
    }
    Box operator+(const Box& b)
    {
       Box box;
       box.length = this->length + b.length;
       box.breadth = this->breadth + b.breadth;
       box.height = this->height + b.height;
       return box;
    }
   private:
        float length;
        float breadth;
        float height;
};
int main()
{
   Box Box1;
   Box Box2;
   Box Box3;
   float volume = 0.0;
   Box1.Length(6.0);
   Box1.Breadth(7.0);
   Box1.Height(5.0);
   Box2.Length(12.0);
   Box2.Breadth(13.0);
   Box2.Height(10.0);
   volume = Box1.Volume();
   cout<<"Volume of Box1 : "<<volume<<endl;
   volume = Box2.Volume();
   cout<<"Volume of Box2 : "<<volume<<endl;
   Box3 = Box1 + Box2;
   volume = Box3.Volume();
   cout<<"Volume of Box3 : "<<volume<<endl;
   return 0;
}

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Output

Volume of Box1 : 210
Volume of Box2 : 1560
Volume of Box3 : 5400

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• C++ Introduction
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• Sum of N Numbers in C++
• Factors of a Given Number using C++
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• Prime Number using C++
• Arrays in C++
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• Function In C++
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For Loop

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• Basic Friend Function Example
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Operator Overloading Example

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• Assignment Operator Overloading Example
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Operator and Function Example

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• Display Values using Friend Function

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• Basic Example of Virtual Function
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