Welcome to the C Knowledge Base and Tutorial
Part 1 – Basic knowledge
- Introduction to C Programming
- Start Learning C Programming
- What is C?
- Why We should learn C
- Examples
- Start Learning C Programming
- C Character Set : Constants, Variables and Keywords
- Constant and Variable in C:
- C Keywords:
- Examples
- Types of C Constant
- Rules for Constructing Integer Constants
- Rules for Constructing Real Constants
- Rules for Constructing Character Constants
- Examples
- Types of C Variables
- What is variable
- Rules for Constructing Variable Names
- Examples
- The First C Program
- Compilation and Execution of C Program
- Download the turbo c – A free C program editor
- Working with Turbo C
- A word of caution!
- Scanf() : Receiving input in C program
- Point to be Noted
- C Instructions
- Type Declaration Instruction
- Arithmetic Instruction
- Point to be Noted
- Integer and Float Conversions in C
- Few practical examples:
- Type Conversion in Assignments
- Hierarchy of Operations in C
- Associativity of Operators
- Control Instructions in C
- Summary of basic C
- Quiz of Basic C – – Test your skill
- Examples
Part 2 – Decision Control in C
- The if Statement
- If in real life
- Multiple statement within if
- The if else Statement
- Nested if
- forms of if
- Use of logical Operators
- The else if clause
- The ! operator
- Hierarchy of Operators
- The conditional operators
- Summary of Decision Control
- Quiz of Decision control – Test your skill
- Examples
Part 3 – Loop structure
- Loops
- The while Loop
- The for Loop
- The Odd Loop
- The break Statement
- The continue Statement
- The do-while Loop
- Summary of loop structure
- Quiz of loop structure – Test your Skill
- Examples
Part 4 – The Case Control Structure
- Decisions Using switch
- switch and if-else
- The Goto Keyword
- Summary of the case control structure
- Quiz of case control structure
- Examples
Part 5 – Functions & Pointers
Introduction of function
Why use function
Passing Values between Functions
Scope Rule of Functions
Calling Convention
Advanced Features of Functions
Function Declaration and Prototypes
Call by Value and Call by Reference
Pointers
Recursion
Recursion and Stack
Adding Functions to the Library
Summary of Function and Pointer
Quiz of function and pointer
Part 6 – Arrays
What are Arrays
Array Initialization
Passing Array Elements to a Function
Pointers and Arrays
Passing an Entire Array to a Function
Two Dimensional Arrays
Pointers and 2-Dimensional Arrays
Pointer to an Array
Passing 2-D array to a Function
Array of Pointers
Limitation of Array of Pointers to Strings
Summary of Array
Quiz of Array
Part 7 – Structures
Introduction of Structure
Array of Structures
Uses of Structures
Summary of Structure
Quiz of Structure
part 8 – Console Input/Output
Types of I/O
Formatted Console I/O Functions
sprintf( ) and sscanf( ) Functions
Unformatted Console I/O Functions
Summary of console input output
Quiz of console input output
part 9 – File Input/Output
- Data Organization
- File Operations
- Opening a File
- Reading from a File
- Trouble in Opening a File
- Closing the File
- Counting Characters, Tabs, Spaces
- A File-copy Program
- Writing to a File
- File Opening Modes
- String (line) I/O in Files
- Record I/O in Files
- Text Files and Binary Files
- Database Management
- Low Level Disk I/O
- A Low Level File-copy Program
- I/O Under Windows
- Summary of File Input/Output
- Quiz of File Input/Output
switch case statement in C Programming
The switch case statement is used when we have multiple options and we need to perform a different task forRead More »
continue statement
The continue statement is used inside loops. When a continue statement is encountered inside a loop, control jumps to theRead More »
do while loop in C programming
A do while loop is similar to while loop with one exception that it executes the statements inside the bodyRead More »
C – while loop in C programming
A loop is used for executing a block of statements repeatedly until a given condition returns false. In the previousRead More »
C – for loop in C programming
A loop is used for executing a block of statements repeatedly until a given condition returns false. C For loopRead More »
C – If..else, Nested If..else and else..if Statement
C If else statement Syntax of if else statement: If condition returns true then the statements inside the body ofRead More »
If statement in C programming
When we need to execute a block of statements only when a given condition is true then we use ifRead More »
Operator precedence and Associativity in C programming language
Operator Precedence in C Operator precedence determines which operator is evaluated first when an expression has more than one operators.Read More »
C Keywords – Reserved Words
In C, we have 32 keywords, which have their predefined meaning and cannot be used as a variable name. TheseRead More »
C Program to find largest element of an Array
#include <stdio.h> largest_element(int arr[], int num) { int i, max_element; max_element = arr[0]; for (i = 1; i < num;Read More »
C Program to arrange numbers in ascending order
#include <stdio.h> void sort_numbers_ascending(int number[], int count) { int temp, i, j, k; for (j = 0; j <Read More »
C program to find the length of a String without using function strlen()
#include <stdio.h> int main() { char str[100],i; printf("Enter a string: \n"); scanf("%s",str); for(i=0; str[i]!='\0'; ++i); printf("\nLength of input string: %d",i);Read More »
C Program to calculate Area of Equilatral triangle
#include<stdio.h> #include<math.h> int main() { int triangle_side; float triangle_area, temp_variable; printf("\nEnter the Side of the triangle:"); scanf("%d",&triangle_side); temp_variable = sqrt(3)Read More »
C Program to calculate Area and Circumference of Circle
#include <stdio.h> int main() { int circle_radius; float PI_VALUE=3.14, circle_area, circle_circumf; printf("\nEnter radius of circle: "); scanf("%d",&circle_radius); circle_area = PI_VALUERead More »
Quicksort program in C
#include<stdio.h> void quicksort(int number[25],int first,int last){ int i, j, pivot, temp; if(first<last){ pivot=first; i=first; j=last; while(i<j){ while(number[i]<=number[pivot]&&i<last) i++; while(number[j]>number[pivot])Read More »