C Language Tutorial on Types of Arrays for Beginners Session - 9 Video Lecture | Basics of C Language - Fundamentals of Programming - Software Development

okay Turin now we'll go for the ninth
session in the ninth session we have one
dimensional array and two dimensional
array as we have seen some programs on
one dimensional array now we will go for
two dimensional array
along with pointers in both arrays of
one dimensional and two dimensional two
dimensional array an array with two
subscripts is called as two dimensional
array it is nothing but a matrix which
consists of rows and columns a two
dimensional array can be defined as an
array which holds some more arrays in it
usually it is in contiguous memory
locations that we'll see in pointers and
coming to seeing matrix which consists
of rows and columns that is for our
representation sake
the syntax is the type again which is
which can be integer float or character
and the variable name name of the array
along with the row size and column size
so if it is only single set of brace it
is one dimensional array but here as you
can see two dimensional array is nothing
but two set of sizes given for it and
this is how we will initialize it
example offset is so we'll go for a
slight initialization of this two
dimensional array the main function
normally we st. array of limit 5 this is
single dimensional but if you say this
is our two dimensional array and the
initialization happens in this way over
a brace now comes our saying two three
four and five the the five things are
represented by this size and three C's
internally internally we need to give
three values
four five six seven eight nine now if I
stick to three over here it will be a
three by three array will stick to four
by three array so this is the ending
brace ending race starting race values
33 our nth column is what I need row and
column 4 are equal to 0 or less than 4 R
+ + + 4 column equal to 0 column less
than 3 column plus plus now say printf
the value comma array of wrote and
column value after this parental newline
character so that we can represent it in
an array format when you execute it and
he forgot about commas over here okay so
this is how your array will be
represented in a matrix format way
so this is a perfect metric shape the
scan the values in the array similarly
like we are printing we need to scan it
for Rho equal to 0 and Rho less than 4
Rho plus + and for column equal to 0
column less than 3 column plus plus say
scan if person D comma have a son array
of row and column that's it with this we
can scan some values with the values B
the values up in this way it's a 4 by 3
matrix as you can see so consider this
is a RR with which we are scanning
printf first array newline character and
with this will scan for the new languor
faster now similarly go for BRR of again
4 and 3 of size likewise CRR again of 4
and 3 off sighs so with this we can add
a and B RS and place the addition in C
so here I am receiving first array
values likewise I'll print allows the
user for secondary values secondary
values in which fur so R equal to 0 and
R less than 4 R plus plus and likewise
for column equal to 0 column less than 3
and column plus plus now say scan if
person D comma ampersand BR r of r and c
with this will scan the second values
now after this will clear the entire
screen will clear the entire screen and
then now it comes to printing of ARR
likewise we can go for printing a
newline character after that for R equal
to 0 R less than 4 R plus plus and 4
column equal to 0 column less than 3
column plus plus and say a printf person
D comma B are operating rows and columns
and say Newland character format lecture
presentation sake now finally in the CR
at the array are less than 4 R + + + 4
column equal to 0 column less than 3
column plus plus say crl of art and seat
should take up the addition of errors
earth and seat + B are ours are then
suite column and print there itself dear
dad values person D comma C are earth
are and seats value and print a new line
character for the matrix of presentation
sake so here thing goes is a loop
renting enter first error for that and
scan for first status as say from the
user to print secondary else get the
secondary contents and I'll clear the
previous outputs and I'll print the
first arraign matrix format after that
to newline characters I'll go for
printing the secondary in matrix format
than three newline characters finally
printing the addition of both first and
second arrays which I can say addition
is in this way
for clear screen we should use hashing
glue corner dot H now execute the
program it is asking me to enter first
error values let it be one all the time
now its secondary let it be two all the
time after that it will clear the entire
previous outputs displaying the first
error in the second array now the
addition is three so this way addition
and subtraction are possible in
two-dimensional array which is which we
call as matrix addition and subtraction
by using arrays now in match we know we
have transfers of a matrix that is
changing the rows and columns if you
have an array which is of consider 3 by
2 size 3 by 2 size and will scan certain
values for row and column saying for R
equal to 0 R less than 3 and R plus plus
likewise for column equal to 0 column
less than 2 column plus plus now say
scan s person D comma ampersand array of
row and column now printed for R equal
to 0 R less than 3 R plus plus and for
column equal to 0 column less than 2
column plus plus printf person D comma
array of Rouen column after that printer
newline character put them in set of
braces
now trending in will change the row and
column row is zero and are less than
three R + + + 4 column equal to 0 column
less than 2 column + + now
while printing instead of saying array
of ruin called a missile I'll
interchange them here it's row and here
it's column and see what happens this
time printf a new line character and off
main and here we'll say one more newline
character now execute the program as you
can see here it is expecting me to give
out 3 4 5 6 so actually it is 1 2 3 4 5
6 now it is 1 3 2 4 and 5 3 5 so this
way we can interchange our rows and
columns making it a transpose of a
matrix character array as we are saying
integer array all the time if we say a
character is in 4 in front of it it is a
character array and this is how we
define character STR orbit and goodbye
all so this is how you can even define a
character array there is separate
chapter on character array where which
is called as strings where we'll be
seeing the programming concepts on
strings but as of now we will take a
pointers in two-dimensional arrays
integer array holds some ten values like
going for single-dimensional
of certain values and let I be the one
so that I can repeat the loop I less
than five and I plus plus very deaf
person D comma ampersand area of I array
of I let it be zero the address happens
to be and instead of saying area of zero
if you say m % 0 will get the address
the concept of addresses and pointers
will see in greater detail when we enter
into pointers