#6.4 Kotlin Tutorial for Android DO WHILE Loop Video Lecture - Kotlin Tutorial

let us now proceed and check out how do
we use Dubai loop in case of Kotlin now
the syntax of Dubai loop in case of
Cortland is similar to Delta of Java so
here this is our counter variable int I
right so now after this I will simply
define do-while loop now inside this I
will simply print let's say I the value
of I and then I will simply increment
the counter I plus plus now the question
arises where we are actually doing the
condition check now in case of do-while
loop we actually do the condition check
at the end so here I will simply write
wild and then I will do the condition
check let's say I is smaller than 10
right or I is smaller than equal to 10
and now let us run the code so in the
output again we get one to ten right and
now again if I ask you to print all the
even numbers with the help of Dubai loop
present between one and ten so for that
again inside the do-while loop body I
will simply write the if condition if I
modulus two is equal to equal to zero
then only print the value that is print
the print only the even numbers and now
let us run the code so here we go two
four six eight and ten so the syntax is
almost same as that of any other
programming language as that of C C++
and that of Java so this is all for this
video and again if you are a beginner
and want to know how the do-while loop
actually works then please continue
watching this video so here this is the
syntax of the do-while loop here we
first initialize the counter and then we
write this syntax do-while condition now
inside the do-while we have a body where
we actually put our code and then
increment or decrement the counter and
same way on the left-hand side I have
some examples for you so here I will
simply print hello three times and here
we will check out how the do-while loop
simply
prints hello three times in the output
console so as usual the output we are
getting three times so at least three
times the loop will be executed so let
us check out the sequence of operations
such as in case of do-while loop we
first execute the code then increment
the counter and then check the condition
right so this is the sequence of the
do-while loop
now when the loop one starts the code
executes that is we get hello in the
output so we simply print hello and then
increment the counter and then the
counter variable becomes 1 and then
finally check the condition which
becomes true now make a note here we are
checking the condition at the end so no
matter if the condition is true or false
at least we will execute our code body
at least once
so once the condition becomes true and I
becomes 1 then this I equal to 1 simply
comes at this loop to where again we
print the value as hello and then
increment the counter to 2 and then
again check the condition at the end
which again becomes true now here the
counter value becomes 2
now this counter value again comes in
the third loop where we first print the
value and again increment the counter to
3 now this time this 3 is actually not
smaller than 3 so the condition here
becomes false but please notice that
since the condition is false but before
checking the condition we have simply
printed hello
right here print hello so at the end of
third loop if the condition becomes
false it does not matter because we have
already printed hello in the output so
once I becomes 3 this try to initiate
the fourth loop but this does not happen
because the condition is false and the
loop terminates so this is how the
do-while loop works in case of Cortland