C++ Plus(+) Operator Overloading Program

Hello Everyone!

In this tutorial, we will learn how to demonstrate the concept of + Operator Overloading, in the C++ programming language.

To understand the concept of Operator Overloading in CPP, we will recommend you to visit here: C++ Operator Overloading, where we have explained it from scratch.

Code:

#include <iostream>
using namespace std;
//defining the class Cuboid to demonstrate the concept of Plus Operator Overloading in CPP
class Cuboid {
 //Declaring class member variables as public to access from outside the class
 public:
 double length; // Length of Cuboid
 double breadth; // Breadth of Cuboid
 double height; // Height of Cuboid
 public:
 double getVolume(void) {
 return length * breadth * height;
 }
 void setLength(double l) {
 length = l;
 }
 void setBreadth(double b) {
 breadth = b;
 }
 void setHeight(double h) {
 height = h;
 }
 // Overload + operator to add two Cuboid objects with each other.
 Cuboid operator + (const Cuboid & c) {
 Cuboid cuboid;
 cuboid.length = this -> length + c.length;
 cuboid.breadth = this -> breadth + c.breadth;
 cuboid.height = this -> height + c.height;
 return cuboid;
 }
};
//Defining the main method to access the members of the class
int main() {
 cout << "\n\nWelcome to Studytonight :-)\n\n\n";
 cout << " ===== Program to demonstrate the Plus Operator Overloading, in CPP ===== \n\n";
 //Declaring the Class objects to access the class members
 Cuboid c1;
 Cuboid c2;
 Cuboid c3;
 //To store the volume of the Cuboid
 double volume = 0.0;
 // Setting the length, breadth and height for the first Cuboid object: c1
 c1.setLength(3.0);
 c1.setBreadth(4.0);
 c1.setHeight(5.0);
 // Setting the length, breadth and height for the second Cuboid object: c2
 c2.setLength(2.0);
 c2.setBreadth(5.0);
 c2.setHeight(8.0);
 // Finding the Volume of the first Cuboid: c1
 cout << "Calling the getVolume() method to find the volume of Cuboid c1\n";
 volume = c1.getVolume();
 cout << "Volume of the Cuboid c1 is : " << volume << "\n\n\n";
 // Finding the Volume of the first Cuboid: c1
 cout << "Calling the getVolume() method to find the volume of Cuboid c2\n";
 volume = c2.getVolume();
 cout << "Volume of the Cuboid c2 is : " << volume << "\n\n\n";
 // Adding the two Cuboid objects c1 and c2 to form the third object c3:
 c3 = c1 + c2;
 // Printing the dimensions of the third Cuboid: c3
 cout << "Length of the Cuboid c3 is : " << c3.length << endl;
 cout << "Breadth of the Cuboid c3 is : " << c3.breadth << endl;
 cout << "Height of the Cuboid c3 is : " << c3.height << endl;
 // Finding the Volume of the third Cuboid: c3
 cout << "\n\nCalling the getVolume() method to find the volume of Cuboid c3\n";
 volume = c3.getVolume();
 cout << "Volume of the Cuboid c3 is : " << volume << endl;
 cout << "\n\n\n";
 return 0;
}

Output:

C++ plus operator overloading

We hope that this post helped you develop a better understanding of the concept of Operator Overloading in C++. For any query, feel free to reach out to us via the comments section down below.

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