Operators

Operators are tools for performing operations on variables and values within code.

Arithmetic operators facilitate tasks, like addition subtraction, multiplication and division.

C++

int sum = a + b;
int difference = a - b;
int product = a * b;
int quotient = a / b;
int remainder = a % b;

int sum = a + b;
int difference = a - b;
int product = a * b;
int quotient = a / b;
int remainder = a % b;

Java

int sum = a + b;
int difference = a - b;
int product = a * b;
int quotient = a / b;
int remainder = a % b;

Python

sum = a + b
difference = a - b
product = a * b
quotient = a / b
remainder = a % b

JavaScript

let a, b;
let sum = a + b;
let difference = a - b;
let product = a * b;
let quotient = a / b;
let remainder = a % b;

Relational Operators:
Relational operators compare values and return a boolean result.

C++

#include <iostream>

int main() {
    int a = 10;
    int b = 20;

    if (a == b) {
        // equal
        std::cout << "a is equal to b" << std::endl;
    }
    if (a != b) {
        // not equal
        std::cout << "a is not equal to b" << std::endl;
    }
    if (a < b) {
        // less than
        std::cout << "a is less than b" << std::endl;
    }
    if (a > b) {
        // greater than
        std::cout << "a is greater than b" << std::endl;
    }
    if (a <= b) {
        // less than or equal
        std::cout << "a is less than or equal to b" << std::endl;
    }
    if (a >= b) {
        // greater than or equal
        std::cout << "a is greater than or equal to b" << std::endl;
    }

    return 0;
}

#include <stdio.h>

int main() {
    int a = 10;
    int b = 20;

    if (a == b) {
        // equal
        printf("a is equal to b\n");
    }
    if (a != b) {
        // not equal
        printf("a is not equal to b\n");
    }
    if (a < b) {
        // less than
        printf("a is less than b\n");
    }
    if (a > b) {
        // greater than
        printf("a is greater than b\n");
    }
    if (a <= b) {
        // less than or equal
        printf("a is less than or equal to b\n");
    }
    if (a >= b) {
        // greater than or equal
        printf("a is greater than or equal to b\n");
    }

    return 0;
}

Java

public class Main {
    public static void main(String[] args) {
        int a = 10;
        int b = 20;

        if (a == b) {
            // equal
            System.out.println("a is equal to b");
        }
        if (a != b) {
            // not equal
            System.out.println("a is not equal to b");
        }
        if (a < b) {
            // less than
            System.out.println("a is less than b");
        }
        if (a > b) {
            // greater than
            System.out.println("a is greater than b");
        }
        if (a <= b) {
            // less than or equal
            System.out.println("a is less than or equal to b");
        }
        if (a >= b) {
            // greater than or equal
            System.out.println("a is greater than or equal to b");
        }
    }
}

Python

a = 10
b = 20

if a == b:
    # equal
    print('a is equal to b')
if a != b:
    # not equal
    print('a is not equal to b')
if a < b:
    # less than
    print('a is less than b')
if a > b:
    # greater than
    print('a is greater than b')
if a <= b:
    # less than or equal
    print('a is less than or equal to b')
if a >= b:
    # greater than or equal
    print('a is greater than or equal to b')

JavaScript

let a = 10;
let b = 20;

if (a == b) {
    // equal
    console.log('a is equal to b');
}
if (a != b) {
    // not equal
    console.log('a is not equal to b');
}
if (a < b) {
    // less than
    console.log('a is less than b');
}
if (a > b) {
    // greater than
    console.log('a is greater than b');
}
if (a <= b) {
    // less than or equal
    console.log('a is less than or equal to b');
}
if (a >= b) {
    // greater than or equal
    console.log('a is greater than or equal to b');
}

Output

a is not equal to b
a is less than b
a is less than or equal to b

Logical Operators:
Logical operators perform logical operations on boolean values.

C++

if (condition1 && condition2) {
    // logical AND
}
if (condition1 || condition2) {
    // logical OR
}
if (!condition) {
    // logical NOT
}

if (condition1 && condition2) {
    // logical AND
}
if (condition1 || condition2) {
    // logical OR
}
if (!condition) {
    // logical NOT
}

Java

if (condition1 && condition2) {
    // logical AND
}
if (condition1 || condition2) {
    // logical OR
}
if (!condition) {
    // logical NOT
}

Python

if condition1 and condition2:
    # logical AND
if condition1 or condition2:
    # logical OR
if not condition:
    # logical NOT

JavaScript

if (condition1 && condition2) {
    // logical AND: Executes if both condition1 and condition2 are true
}

if (condition1 || condition2) {
    // logical OR: Executes if either condition1 or condition2 (or both) are true
}

if (!condition) {
    // logical NOT: Executes if condition is false
}

Unary, Binary, and Ternary Operators:
Unary operators operate on a single operand, binary operators on two, and ternary operators on three.

C++

int unary = -a; // unary minus
int binary = a + b; // binary plus
int ternary = (a > b) ? a : b; // ternary conditional

int unary = -a; // unary minus
int binary = a + b; // binary plus
int ternary = (a > b) ? a : b; // ternary conditional

Java

int unary = -a; // unary minus
int binary = a + b; // binary plus
int ternary = (a > b) ? a : b; // ternary conditional

Python

unary = -a  # unary minus
binary = a + b  # binary plus
ternary = a if a > b else b  # ternary conditional

How to Start Coding

In this ever-evolving digital landscape, the ability to code is not just a valuable asset but a gateway to creative expression and innovation. This brief guide will outline practical steps and essential principles to guide aspiring learners on their path to mastering the art of coding.

Table of Content

Introduction, to Basic Syntax. Hello World
Understanding Data Types
Variables and Constants
Keywords
Operators
Decision Making statements
Loops
Numbers
Characters
Arrays
Strings- Basic String Concepts
Functions

Operators

How to Start Coding

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