🟢 Foundation · Lesson 09

Operators in C++

What is Operators in C++?

Operators in C++
Operators are symbols that perform calculations, comparisons, assignment and logical checking. They are used in almost every C++ program.

Level
🟢 Beginner – C++ Foundation

Example File
operators.cpp

Main Focus
Concept + syntax + practical C++ program

Why should you learn this?

It helps you write correct and readable C++ programs.
It is used repeatedly in school practicals, projects and competitive programming.
It builds the base for advanced topics such as OOP, STL and data structures.

Important Terms

Term	Meaning / Use
arithmetic	Arithmetic used in Operators in C++ programming.
relational	Relational used in Operators in C++ programming.
logical	Logical used in Operators in C++ programming.
assignment	Assignment used in Operators in C++ programming.
increment	Increment used in Operators in C++ programming.

Syntax / Pattern

Examples: + - * / %, == != > <, && || !, = += -=, ++ --

Example Program

#include <iostream>
using namespace std;

int main() {
    int a = 10, b = 3;
    cout << "Sum = " << a + b << endl;
    cout << "Remainder = " << a % b << endl;
    cout << "a > b = " << (a > b);
    return 0;
}

Expected Output

Sum = 13 Remainder = 1 a > b = 1

Program Explanation

% gives remainder for integer division.
Relational expression returns true/false, printed as 1/0.

Exam Tip: In C++ practical answers, write the logic first, then the program, then expected output. For theory, always include one suitable example.

Where will you use it?

marks calculation
fee calculation
pass/fail checks
menu conditions

Common Mistakes

Using = instead of == in conditions.
Using % with floating-point numbers.
Ignoring operator precedence.

Practice Tasks

Calculate average of three numbers.
Check whether a number is even or odd.

Summary

Operators in C++ is an important C++ topic. Learn the definition, understand the syntax, run the example program and then solve the practice tasks to make the concept strong.