🟢 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	Operators in C++ programming में Arithmetic use होता है।
relational	Operators in C++ programming में Relational use होता है।
logical	Operators in C++ programming में Logical use होता है।
assignment	Operators in C++ programming में Assignment use होता है।
increment	Operators in C++ programming में Increment use होता है।

Syntax / Pattern

C++

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

Example Program

main.cpp

#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++ एक ज़रूरी C++ topic है। परिभाषा सीखें, syntax समझें, example program चलाएं और फिर practice tasks हल करके concept मज़बूत करें।

Operators in C++ क्या है?

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

मुख्य फोकस
Concept + syntax + practical C++ program

इसे क्यों सीखें?

यह आपको सही और पढ़ने-योग्य C++ programs लिखने में मदद करता है।
यह school practicals, projects और competitive programming में बार-बार use होता है।
यह OOP, STL और data structures जैसे advanced topics की नींव बनाता है।

ज़रूरी Terms

Term	अर्थ / उपयोग
arithmetic	Arithmetic Operators in C++ programming में use होता है।
relational	Relational Operators in C++ programming में use होता है।
logical	Logical Operators in C++ programming में use होता है।
assignment	Assignment Operators in C++ programming में use होता है।
increment	Increment Operators in C++ programming में use होता है।

Syntax / Pattern

C++

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

Example Program

main.cpp

#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

आम गलतियाँ (Common Mistakes)

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

अभ्यास (Practice Tasks)

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

सारांश

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