Variables in C++

C++ has a variety of operators that can be used to create expressions. These operators can be divided into the following categories: arithmetic, logical, relational, bitwise, and assignment operators.

Let’s look at an example of an expression using the arithmetic operators:

#include <iostream>

int main()
{
    int x = 10;
    int y = 5;
 
    int z = x + y;
 
    std::cout << "x + y = " << z << std::endl;
 
    return 0;
}

Output

x + y = 15

In this example, we have used the addition operator (+) to add the values of x and y and store the result in the variable z. We have then used the cout stream to print out the value of z.