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C Examples

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Syntax

Create a simple "Hello World" program
Syntax Explained

Output/Print

Use printf to print text Using many printf functions Insert a new line with \n
Output Explained

Comments

Single-line comment before a line of code Single-line comment at the end of a line of code Multi-line comment
Comments Explained

Variables

Create an integer variable and print it Add a variable to another variable Declare many variables of the same type with a comma-separated list Constant (unchangeable) variable
Variables Explained

Data Types and Format Specifiers

A demonstration of different data types and format specifiers
Data Types and Format Specifiers Explained

Operators

Addition operator Subtraction operator Division operator Modulus operator Increment operator Decrement operator Assignment operator Addition assignment operator Comparison operator Logical operators
Operators Explained

If...Else (Conditions)

The if statement The else statement The else if statement
If...Else Explained

Switch

The switch statement The switch statement with a default keyword
Switch Explained

Loops

While loop Do while loop For loop Break a loop Continue a loop
Loops Explained

Arrays

Create and access an array Change an array element Loop through an array
Arrays Explained

Strings

Create a string Another way to create a string Access string characters Change string characters
Strings Explained

User Input

Input a number and print the result Input two numbers and print the sum
User Input Explained

Memory Address/References

Get the memory address of a variable
Memory Address Explained

Pointers

Create a pointer variable Get the value of a variable with the dereference operator *
Pointers Explained

Functions

Create and call a function Call a function multiple times Function declaration and definition Parameters and arguments Multiple parameters Return value Return the sum of two parameters Recursion (make a function call itself) Use a math function to get the square root of a number
Functions Explained

Structures

Access a structure Create multiple structure variables with different values String in structure Simpler Syntax (shorthand) Copy structure values Modify values Real Life Example
Structures Explained

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