This document provides an overview of the C programming language, including its history, uses, basic environment, data types, variables, operators, control structures like if/else statements and loops. It begins with the origins of C in the 1970s and explains that C combines high- and low-level language features, making it useful for systems programming tasks like operating systems and compilers. Examples are provided throughout to illustrate core C concepts like getting user input, performing calculations, and repeating actions with for, while and do-while loops.
This is an overview of C++ (based on 1999 / 2003 standard) and its use in Object Oriented Programming. The presentation assumes that the audience knows C programming.
A function is a group of statements that together perform a task. Every C program has at least one function, which is main(), and all the most trivial programs can define additional functions. You can divide up your code into separate functions.
The E-examination Engine, is a website project which has been developed to overcome the offline examination system as the whole process of assigning test and evaluating their scores after the test, is done manually till date. It is very time consuming. The chance of loss of records is high and record searching is difficult. Result processing is also time taking course of action.The main objective of the E- Examination Engine is that, it helps companies/institutions to conduct exams to any number of candidates at a time, in an automated manner. It reduces the time consumption and workload that exist in the current system of examination. It also facilitates secure storage and easier searching of records for each examination.
This is an overview of C++ (based on 1999 / 2003 standard) and its use in Object Oriented Programming. The presentation assumes that the audience knows C programming.
A function is a group of statements that together perform a task. Every C program has at least one function, which is main(), and all the most trivial programs can define additional functions. You can divide up your code into separate functions.
The E-examination Engine, is a website project which has been developed to overcome the offline examination system as the whole process of assigning test and evaluating their scores after the test, is done manually till date. It is very time consuming. The chance of loss of records is high and record searching is difficult. Result processing is also time taking course of action.The main objective of the E- Examination Engine is that, it helps companies/institutions to conduct exams to any number of candidates at a time, in an automated manner. It reduces the time consumption and workload that exist in the current system of examination. It also facilitates secure storage and easier searching of records for each examination.
This C tutorial covers every topic in C with the programming exercises. This is the most extensive tutorial on C you will get your hands on. I hope you will love the presentation. All the best. Happy learning.
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C Programming Language Tutorial for beginners - JavaTpointJavaTpoint.Com
JavaTpoint share a presentation of C Programming language for beginners and professionals. now in this slideshare you will be learned basics of c programming language, what is c programming language, history of c programming, installing turbo c, features of c programming language, datatypes of c language, operaters in c, control statement of c language, c language functions, c array, pointer in c programming, and structure and union.
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Programming is hard. Programming correct C and C++ is particularly hard. Indeed, both in C and certainly in C++, it is uncommon to see a screenful containing only well defined and conforming code.Why do professional programmers write code like this? Because most programmers do not have a deep understanding of the language they are using.While they sometimes know that certain things are undefined or unspecified, they often do not know why it is so. In these slides we will study small code snippets in C and C++, and use them to discuss the fundamental building blocks, limitations and underlying design philosophies of these wonderful but dangerous programming languages.
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The C is a general-purpose, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.
2. CONTENTS
What is C?
History
Why we use c
Basics of C environment
Getting started with C
Data types / Keywords
Variables / C character set
Operators
The If – else statement
Switch variables
Loops
3. What is c ?
o Programming Language written by Brian Kernighan and D
D Dennis Ritchie .
o C has been designed to have both high level languages and
l low level languages so it is often called middle level
languages.
o Highly structured language .
o Handle bit level operation .
o There are zillions of lines of C legacy code .
o It is also used in application program .
o To develop system software- compilers , operating system.
4. Year Language Developed by Remarks
1960 ALGOL International
Committee
Too general, too
abstract
1963 CPL Cambridge
University
Hard to learn ,
difficult to
implement
1967 BCPL Martin Richards
at Cambridge
University
Could deal with
only specific
problems
1970 B Ken Thompson
at AT & T
Could deal with
only specific
problems
1972 C Dennis Ritchie
at AT & T
Lost generality of
BCPL and B
restored
History
5. Why we use c ?
Mainly because it produces codes that runs nearly as fast as
code written in assembly language some examples of the use of
c might be :
Operating systems
Language compilers
Assemblers
Text editors
Print spoolers
Network drivers
Modern programs
Data bases
Language interpreters
Utilities.
6. Basics of C environment
C system consist of 3 parts
- Environment
- Language
- c standard library.
Development environment has 6 phases .
• Edit : Writing the source code by using some IDE or editor.
• Pre-processor : Already available routine.
• Compile : Translates or converts source to object code for a
s specific platform i.e., source code -> object codes.
• Link : Links object code with libraries and stores on disk.
• Load : Puts the program in memory.
• Execute : Runs the program.
7. Executing a c program .
Computer Edit program
source code
Compile
Object code
Library files Link object code executable Computer
8. Getting started c program.
#include<stdio.h> // preprocessor directive .
#include<conio.h>
void main() // Main function.
{ //Start of the program.
printf(“hello world”); // Function from C library that
getch(); is used to print strings to the
clrscr(); output of our screen.
} // End of the program.
9. Data Types .
1. Integer int 2 bytes
2. Long integer long int 4 bytes
3. Character char 1 bytes
4. Float float 4 bytes
5. Double double 8 bytes
Some Keywords
Auto double Int struct
Break Else Long Switch
Case Enum Register Typedef
Char Extern Return Union
Const Float Short Unsigned
Continue For Signed Void
Default Goto Size of Volatile
do If static While
10. Variables
These names of variables consists of numbers , letters ,
and underscores.
The restriction on names is that you may not use
keywords as the name of variables or functions.
Declarations are important in multi file programs where a
variables defined in one file must be referred to second
The C Character Set
A character denotes any alphabet , digit or special
symbol used to represent information.
Alphabets A ,B ,……………, Y , Z
A , b ,………….., y , z
Digits 0 , 1 , 2, 3 , 4 , 5 , 6, 7 , 8 , 9
Special symbols ~ ‘ ! @ # % & * ( ) _ - + =
| { } [ ] ; : “ ‘ < > , . ? /
11. Operators
1. Arithmetic operator
a) Binary operator
+ , - , * , /, %
b) Unary operator
++ , -- , -
++ increment by 1
-- decrement by 1
- negative
2. Assignment operator
int a = 10, b = 5 , c :
c = a+b :
3. Compound Assignment operator
+=, -= , /= , %= , * =
4. Comparison operator
>,< ,>= ,<= , != , ==
12. 5. Logical operator
&& (And) , || (or) , ! (not).
&& (And)
Cond 1 Cond 2 Result
T T T
T F F
F T F
F F F
All condition true the true otherwise false .
|| (or)
Cond 1 Cond 2 Result
T T T
T F T
F T T
F F F
All conditions false result false otherwise true .
13. ! (Not)
Cond 1 Result
T F
F T
• Prefix Increment value than use ++a.
• Postfix Use value than increment a++.
Write a program to add two numbers.
#include <stdio.h>
#include<conio.h>
void main ()
{
int a=10, b=5;
printf(“a+b=%d”,a+b);
getch();
clrscr();
}
14. The If – else statement
if (condition) if (condition)
{
Statement 1; statement- sequence 1;
else }
Statement2; else
{
statement - sequence 2;
}
15. Write a program to check given no. is even or
odd.
#include <stdio.h>
#include<conio.h>
void main ()
{
int num;
printf(“enter a number”);
scanf(“%d”, & num);
if (num%2 ==0)
printf(“even number”);
else
printf(“odd number”);
getch();
clrscr();
}
16. Switch variables
{
case value;
case value;
}
Write a program to show the given character is vowel or constant .
#include<stdio.h>
#include<conio.h>
void main ()
{
char c;
printf(“enter character :”);
scanf(“%c” & c);
switch (c)
{
case ‘a’
case ‘e’
case ‘i’
case ‘o’
case ‘u‘
printf (“vowel”);
break;
default
printf (“const”);
}
getch();
clrscr();
}
17. Loops
A loop is a sequence of statements which is specified once but
which may be carried out several times in succession.
There are three methods by way of which we can repeat a part of a
program. They are :
a. Using a for statement
b. Using a while statement
c. Using a do- while statement
18. Write a program to implement for loop.
#include<stdio.h>
#include<conio.h>
Void main();
{
int c;
for (c=1;c<=5;c++);
{
printf(“n%d”,c);
}
getch();
Clrscr();
}
for loop
for (initialization;condition;increament)
{
statement
}
19. While loop
While (condition)
{
statement;
increment;
}
Write a program to implement while loop.
#include<stdio.h>
#include<conio.h>
void main()
{
int c =1;
while (c<=5)
{
printf(“n%d”,c);
c++;
}
getch();
clrscr();
}
20. Do While
do
{
statement;
increment
}
while (condition);
Write a program to implement do while loop.
#include <stdio.h>
#include<conio.h>
void main()
{
int sum =0, num;
do
{
printf (“enter a number n”)
scanf (“%d”,& num);
sum += num;
}
while (num!=0);
printf (“sum=%d”,sum);
getch();
clrscr();
}