What is main data type in C? | user defined data types in c

 Wayne was in the last session we
discussed about a variables concept now
in this session we are going to discuss
about datatypes the concept is a data
types first of all what is a data type
in the Declaration of every variable it
is mandatory to specify its data type if
you just look at the syntax of the
variable you will understand right just
this is a declaration right of a

What are the 5 data types?

variable the syntax here it is in the
Declaration of variable this is
identifier and next what is important
the data type is important data type the
data type and identifier if you see the
example data type is an integer and
variable name is a variable name is a
and here it is a data type what is a
data type it is just a representation of
data clearly how much memory write is
required to allocate and what type of
data is allowed to store so these two so

will represent it by the data type of a
specific variable suppose here it is I
am declaring a variable a is of type wat
integer type so here a gets memory
allocation at some location at some
location this is memory address we
already discussed a memory address is a

What is main data type in C?

positive integer value positive integer
value this is called address right every
variable that gets memory allocation and
how many bytes required generally
integer occupies 2 bytes memory integer
occupies 2 bytes memory and here it is
once the variable is ready once the
variable is ready and what type of data
is allowed suppose here it is I am
storing -

13 is a negative integer of course it is
an integer so it is allowed and next one
some positive integer 17 I am storing it
is also allowed but can we store 3 4.56
no it will not allow decimal values not
allowed simply datatype represents two
things about a variable first one what
type of data is allowed to store and
second one how much memory is required
to store the data these two things so
described by a data type and now how
many types are available in a c language

okay see here it is data types
classified into three types classified
into three types this is a
classification so first one
primitive data types second one derived
data types third one user defined data
types data types classified into three
types first one is a primitive data
types

What are the different data types in c?explain?

second one is a derived data types third
one is a user-defined data types right
here it is a primitive data types
integer character float void all these
are called primitive data types
these are comes under primitive types
what are the derived types suppose array
string pointer all these are comes under
derived data types and what are the
user-defined data types here it is

structure Union type def enum all these
are comes under user-defined data types
so once again data types divided into
three types classified into three types
first one primitive data types integer
character float void second one is a
derived data types arrays strings
pointers functions and all these are
comes under derived data types and what
are the user-defined data types

How many data types in c

structures unions type def innum so this
is called classification and here either
derived data types or user-defined data
types these data types discussion later
so because arrays fear we will discuss
very clearly as a concept and strings
also we will discuss structures unions
all these are separate concepts in a c
language so data types means only just
these primitive data types discussion so
first primitive types again subdivided

into so many data types right so what
are the types we'll see okay right so
sub classification of primitive data
types here primitive types only and what
are the primitive types once again we
are writing in TZ next one character
next one float and the last one is a
wide so these are the primitive types
and what are the integer types integer
divided into three types first one is a
short second one is a integer third one
is a long first one is a short type
second one is a integer third one is a

long and again short data type divided
into two types one is a signed short
second one is a unsigned short integer
also one is a signed integer second one
is a unsigned integer long also one is a
signed long second one is a unsigned
long so one integer data type again
subdivided into six types sir wiser
suppose if you want to store one integer
value right one integer data type is
enough now why these many data types are
required why these many data types are
required why again classified into six

What are the basic data types in C?

types depends on the data we are storing
depends on the size of the data
I just want to store the balance in
account five thousand six thousand then
we choose one particular type for
example Department number so mostly
thirty ten twenty Department numbers are
they all right to store such type of
data

so very unless integer is enough for
example shot this consider I am trying
to store a phone number or I am trying
to store account number right such type
of things we can store with the help of
only long integer types only depends on
the size of the data right we choose a
particular datatype right among
available for example suppose 10 to soar
the value 10 1 byte memory is in a one
byte memory so always we should go for a
datatype which occupies only one byte

What are the data types in C give examples?

memory suppose if you are trying to
choose a a datatype which occupies 4
bytes wantedly you are wasting 3 bytes
memory in your application 3 bytes of
memory we are wasting so that reduces
the application performance so that is
why always depends on the data we are
using or we are storing right we should
select a particular datatype suppose I
am storing a phone number or n storing
an account number then we should go for
the data type which occupies 4 bytes
memory because one byte memory is not
enough to store such type of

informations so this is integer types
and how to select a particular type and
why they divided one integer type into 6
sub classifications and next character
character also divided into two types
one is assigned character and second one
is a unsigned character one is assigned
and second one is an unsigned character
an x one float divided into three types
one is a flow type second one is a
double and the last one is a long double
last one is long double so these are the
classifications wide just it is
representing nothing and more clearly
once already we discussed and
once again we will see more briefly in a
functions concept so here it is a three
types three types again subdivided into

user defined data types in c

so total how many types eleven types so
this is called a sub classification of
datatypes sub classification of data
types and after that how many bytes each
data type occupies how many bytes each
data type occupies see suppose if it is
a short integer either it is a signed
integer or it is an unsigned integer it

occupies two bytes memory in the program
two bytes memory in the application and
suppose if it is an integer right either
it is assigned or in unsigned it will
occupy two or four bytes sir when it
will occupy two bytes and when it will
occupy four bytes that is depends on the
compiler we are using that once again we
will see briefly right when we are going
to discuss about a integer data type
particularly okay and next long right
either signed or unsigned it occupies 4

bytes memory once again short data type
either it is a signed or unsigned again
questions are what is assigned and what
is unsigned simple signed means using
signed data type we can store a positive
value or negative value both are allowed
in our program always we are not working
with only positive values now in some of
the cases definitely there is a
requirement will come that we have to
store negative values also in that

size of data types in c

situation we should go for sign D type

because the scienter data type accept
both a positive value and a negative
value but suppose if it is a unsigned
type unsigned strictly it will accept
only positive values negative values it
will not accept all right so this is a
difference between sign datatype and
unsigned datatype here it is short
either it is a signed or unsigned it
occupies two bytes integer

either signed or unsigned it occupies 2
or 4 bytes depends on the compiler we
are using and if it is a long it
occupies 4 bytes character either signed
care or unsigned care it will occupy
only one byte memory it will occupy only
one byte memory and next one float data
type occupies 4 bytes double data type
occupies 8 bytes long double data type
occupies 10 bytes memory in the
application right so these are the
different sizes occupied by all these

derived data types in c

are classifications ok so this is all
about a sub classification of data types
and briefly exactly so what are the
values we can store into short type
character type integer type and flow
type one by one we'll see in the coming
sessions ok so this is the introduction
part of a data types thank you thank you
for 

data type part 2

data type part3