Programming, do while loop, c++

1. DO/WHILE
LOOP
by GROUP3(Debugging Dynamos)
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2. GOOD MORNING,
EVERYONE!

3. Prayer

4. 1.Understand the purpose of a
Do/While Loop
how it
that
a
Learn
ensures
block of
executes at
once
checking
code
least
before
the
condition.
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OBJECTIVES:
2.Differentiate Do/While Loop
from other loops
Recognize how it
differs from While
and For loops in
terms of execution
flow.
3.Perfect the 5-question quiz
Test
comprehension of
the Do/While Loop
concept, syntax,
and functionality
with a short quiz.

5. WHAT IS A
DO/WHILE
LOOP?
-A Do/While Loop is a type of loop in C++ that ensures the
code inside the loop executes at least once before checking
the condition. Unlike a while loop, which evaluates the
condition first, a do/while loop runs the code block first and
then evaluates the condition. This makes it useful in
scenarios where you need to execute a set of instructions at
least once, such as user input validation, menu-driven
programs, or repeated processes that must occur before
checking a condition.
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6. Ensures Execution at Least Once
Unlike other loops, a Do/While Loop
guarantees that the code inside runs at
least one time, even if the condition is
false.
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PURPOSES OF A DO/WHILE
LOOP
01 0 2
User Input Validation
It is commonly used in programs that
require user input, ensuring the user
enters valid data before proceeding.

7. PURPOSES OF A DO/WHILE
LOOP
0 3
Menu-Driven Programs
Frequently used in programs with
menus, allowing users to interact with
options before deciding to exit.
0 4
Repetitive Processes with Post-
Condition Checking
Useful in scenarios where an action
must be performed first, and then the
condition is checked for repetition, such
as game loops or repeated calculations.
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8. STRUCTURE OF
A DO/WHILE
LOOP
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do {
/ / code block to be executed
} while (condition);
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EXPLANATION:
1.do { } Block – The code inside this block
executes at least once, no matter what the
condition is.
2.while (condition); – After executing the
block, the condition is checked.
If true, the loop repeats.
If false, the loop stops.

9. EXAMPLES: PRINTING 1 TO
5
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#include <iostream>
using namespace std;
int main()
{
int i = 1;
do {
cout << i << "n";
i++;
} while (i <= 5);
return
0;
}
OUTPUT:
1
2
3
4
5

10. Your time to shine!
(Hands on activity)
Create a program that acts
like a magic number
guessing game from
numbers 1-10 using
do/while loop.
Correct answer is your
choice
Welcome to the Magic Number
Guessing Game!
I have chosen a number between
1 and 10. Can you guess it?
Enter your guess: (placeholder)
Try again!
Enter your guess: (placeholder)
Congratulations! You guessed the
magic number!

11. THANK
YOU!
by GROUP3(Debugging Dynamos)
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