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Program even and odd

Program   #include <stdio.h> int main() {     int num;     // Input from user     printf("Enter a number: ");     scanf("%d", &num);     // Check even or odd     if (num % 2 == 0) {         printf("The number is Even");     } else {         printf("The number is Odd");     }     return 0; } Explain  % is the modulus operator (gives remainder). If num % 2 == 0 → number is even Otherwise → number is odd If you want, I can also show: Program using loop (multiple numbers) Program without using % operator
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Oop concept 🥰

😍😇  Object-Oriented Programming (OOP) is a programming method that uses objects and classes to design programs. It helps to make programs easy to understand, reusable, and secure. In OOP, everything is treated as an object. 🔹 Basic Concepts of OOP 1. Class A class is a blueprint or template used to create objects. 👉 Example: Think of a Car as a class. Car has: Color Speed Model These are called properties (variables) and functions (methods). Code:  C++ class Car { public:     string color;     int speed;     void drive() {         cout << "Car is driving";     } }; 2. Object An object is an instance of a class. 👉 Real-life Example: If Car is a class, then BMW, Audi are objects. C++  code Car c1; c1.color = "Red"; c1.speed = 100; c1.drive(); Four Main Principles of OOP 3. Encapsulation Encapsulation means binding data and functions together in a single unit (class). It also protects data from unauthoriz...
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Hello world program 😄

💥 Basic Hello World Program in C 😍 Program : C #include <stdio.h> int main() {     printf("Hello, World!");     return 0; } 🔍 Explanation of Each Line (In Detail) 1️⃣ #include <stdio.h> #include → This is a preprocessor directive. It tells the compiler to include the standard input-output header file. < stdio.h> contains built-in functions like: printf() → used to print output scanf() → used to take input 👉 Without this line, printf() will not work. 2️⃣ int main() main() is the starting point of every C program. The program execution always begins from this function. int means this function will return an integer value. 3️⃣ { } (Curly Braces) These define the body of the function. All statements of the program are written inside these braces. 4️⃣ printf("Hello, World!"); printf() is an output function. It prints the message written inside double quotes ("") on the screen. ✔ "Hello, World!" → This is a string constant (you s...
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Special symbols (Separators)

 🔷 Special Symbols in C (Specific Symbols) in Detail Special Symbols are characters that have a fixed meaning in C programming. They are used to perform different operations like grouping, separating, defining blocks, accessing data, etc. 💫List of Special Symbols in C Language Symbol        Name         Function / Use   ()                  Parentheses     Used in functions                                                   and expressions {}                 Curly Braces     Define the                                                          ...
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Operator in c programming language

 💥 Operators in C Programming Language (In Detail) In C programming, an operator is a symbol that tells the compiler to perform a specific mathematical or logical operation on variables and values. 👉 Example: C a + b Here,          + is an operator and a, b are operands. 🔹 Types of Operators in C Language 1. Arithmetic Operators Used to perform basic mathematical operations. Operator      Meaning         Example +                   Addition              a + b -                   Subtraction          a - b *                  Multiplication      a * b /                    Division                a / b %  ...
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Constant in c programming language

 What is a Constant? A constant is a value that cannot be modified once it is defined. Example: C 10 3.14 'A' "Hello" 🔹 Types of Constants in C C constants are mainly divided into: Integer Constants Floating (Real) Constants Character Constants String Constants Enumeration Constants Symbolic Constants 1️⃣ Integer Constants These are whole numbers (without decimal point). ➤ Types of Integer Constants ( a) Decimal Integer Base 10 numbers Digits: 0–9 Example: C 10 -25 500 ( b) Octal Integer Base 8 numbers Starts with 0 Digits: 0–7 Example: C 075 012 (c) Hexadecimal Integer Base 16 numbers Starts with 0x or 0X Digits: 0–9 and A–F Example: C 0x1A 0XFF 2️⃣ Floating (Real) Constants These contain decimal points or exponential form. ➤ Types: (a) Fractional Form C 3.14 -0.98 10.0 (b) Exponential Form C 1.5e3 // 1.5 × 10³ 2E-2 // 2 × 10⁻² 3️⃣ Character Constants A single character enclosed in single quotes ' '. Example: C 'A' '5' '#' ...
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Identifiers in c programming language

 What are Identifiers in C? Identifiers are the names given to program elements in C. They are used to identify variables, functions, arrays, structures, unions, and labels. 👉 Simply: An identifier is a name used to identify something in a program. Examples of Identifiers C int number; float total_marks; void calculateSum(); Here: number → variable identifier total_marks → variable identifier calculateSum → function identifier Rules for Naming Identifiers in C An identifier must follow these rules: 1.Only alphabets, digits, and underscore (_) are allowed ✅ total_marks ❌ total-marks 2.First character must be a letter or underscore ✅ _count, sum ❌ 1sum 3.Cannot use keywords as identifiers ❌ int, float, return (These are reserved words) 4.No spaces allowed ❌ total marks ✅ total_marks 5.Case-sensitive Sum and sum are different identifiers 6.Length C allows long identifiers, but first 31 characters are significant (for many compilers) 👉Valid and Invalid Identifiers😀 Valid Identifier...
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