MY FIRST PROGRAMMIG LANGUAGE C PROGRAMMING
C PROGRAMMING
Students Ham is site (A.V
addiction) ke madym se apko bahut hi saral or asan tarike se C programming
language sikhayege. Yaha apko bina kisi ki help se aap C programming
shikh sakte hai , or dusre students ko bhi Is site (A.V addiction ) ke
bare me btaye taki we bhi apki tarha C programming sikh sake .
Kisi bhi programming language ko
padne ke liye hame pehle basic (knowledge) jankari honi chahiye.
Start
C Language makers are
Dennis Ritchie & Bell Labs
Language:- language are two types .
1.
Low level language :- it is a two types .
a) Machine
language it is work on (0,1) from.
b) Assembly
language it is work on (symbols).
This language is hardware dependent , and not a portable.
2.
High level language :-this language is a hardware independent
,and it is a portable.
Example:- C , C++ , java , cobal , fortren , ruby etc.
Translater
1. Assembler
:- it convert to assembly to machine language.
2. Interprite
r:- it is check the program line by line and find the error in the
line and it stop the reading. It is convert high level to machine language.
3. Compiler
:- it is check the program at a one time, and it is convert
high level to machine language.
C
language
C language is middle level
language or brige level language.
Writer of C language:-
Ex. Simple program of addition
in C language..??
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,r;
clrscr();
printf(“Enter two numbers”);
scanf(“%d%d”,&a,&b);
r=a+b;
printf(“Addition is =%d”,r);
getch();
}
Note:- in this program we know the what is the concept mean.
#include
=
pre processor directive
stdio.h , conio.h
= this is
header file (console I/O key) that is predefined.
void
main()
=
void is a return type and main() is a user
defined function
{
Beginning
-------------
body of main
-------------
getch();
=
showing results of more time. }
} =
end
}
Int
a,b; = that is
variable.
}
clrscr();
= it is use to clear
the screen
.
} that is all predefine
sacanf
=
fetch the address of datas run time. }
printf()
=
print the
data
}
VARIABLE:-
variable is the name of memory location which are hold any value. the
variable is a basic unit of storage in a C programming. Variable name may
consist of alphabets, digits, the underscore( _ ) and doller character
subject iot following conditions.
1.
They must not begin the disit.
2. Variable
name must be start alphabet .
3. Uppercase
and lowercase are distinct (means alag-alag). Means the
variable Total is not same , like TOTAL or total .
4. It
should be not a keyword.
5. Variable
names can be of any length.
6. Space is
not allow.
7. Keyword
not allow for variable name.
it is a four types of
variable.
a) Local
variable
= ( Automatic) (Garbage)
(Default value)
b)
Global variable
=
(External)
-
0
c) Static
variable
= (Life
time variable)
-
0
Register variable
= in this variable not use scanf
because that is not use the memory only use the CPU register , this
is a faster .
DATA TYPE :- Every variable in C has a data type. Data type
specify the size and type of values that can be stored.
Integer :-
a) It have a
complete number .
b) It must not
have a decimal .
c) Space
and special symbol not allow.
d) Two byte memory consume
Float :-
a) It is
most have be decibel number.
b) Space and
special symbol not allow.
c) It
is a four byte consume.
Double:-
a) It is most
have be decibel number.
b) Space and
special symbol not allow.
c) It is a
eight byte consume.
Character : -
a) Any alphabet , number or symbol with
in single code.
b) One byte
consume .
c) Rang 0
to 255 .
Keyword :- In C programming 32 Keyword predefine
. Ex. – int , flot , chan , for , while , switch, etc.
UNIT
1 BIT = (0’S, 1’S)
1 BYTE = 8 BIT
1 KB = 1024 BYTE
1 MB =1024 BYTE
1 GB = 1024
MB
1 TB = 1024 GB
IN
C PROGRAMMING
Int - 2
Byte
Long - 4 byte
Float - 4
byte
Double - 8 byte
Char - 1 byte
NOTE : - How to do C programming…??
1). Do you make any program,
you install [ TURBO C ] software . (C
Programming karne ke liye apko TURBO C name ka ek software apne
system me install karna hoga.)
2). We run (execute) any
C program . we have a three files.
FILE NAME
FILE
a) addition
.BAK (backup file)
b) “
“
.OBJ (object file)
c)
“ “
.EXE (executable file)
3). C
programming is a case sensitive .
ASCII : - American standard code for information
interchange .
A = 65
a = 97
Que : - How to initialize the value
in variable..??
Ans : - initialize value in
compile time..
int a =
10;
a [10]
chan ch =
‘A’
ch [A]
Run time initialize : -
scanf( “Type specified”, & variable
name);
Denoted by : -
%d
= int
%f
= float
%c
= chan
Ex. : - scanf(“%d”,&a);
scanf(“%f”,&b);
scanf(“%c”,&x);
scanf(“%d%f%c”,&a,&b,&x);
Output result : - printf(“Welcome to C
programming”);
·
Read the Save result . (save kiya hua read karne ke liye)
Printf(“Type
specified”,variable name);
Printf(“%d”,
a);
To BE CONTINUED NEXT POST..
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