Lab $2$:

Objective

The objective of this lab is to help you understand and implement basic control

structures in C$++.$ By the end of this lab, you will be able to:

$$ Use if$-$else statements to make decisions in a program.

$$ Use a do$-$while loop to repeat a block of code based on user input.

Instructions

Step $1$: Setting Up Your Environment

$1.$ Open Visual Studio and create a new C$++$ project.

$2.$ Create a new cpp file named as yourFullNameLab$2.$cpp

Step $2$: Writing the Program

$1.$ Include the necessary header files: Start by including the iostream library

and the standard name space, which allows you to use input and output

streams.

$2.$ Declare the main function: This is the entry point of your program.

$3.$ Declare variables: You will need an integer variable to store the user$$s input

and a character variable to store the user$$s choice to continue or exit the

loop.

Step $3$: Implementing the do$-$while Loop

$1.$ Prompt the user for input: Inside the do$-$while loop, ask the user to enter a

number.

$2.$ Use if$-$else statements: Check if the entered number is positive or non$-$

positive $($this includes negative numbers and zero$)$ and display appropriate

messages.

$3.$ Ask the user if they want to continue: After displaying the message, ask

the user if they want to enter another number. Store their response in the

character variable.

$4.$ Repeat the loop: The loop should continue as long as the user enters $$y$$ or

$$Y$.$

Step $4$: Finalizing the Program

$1.$ Exit the loop: When the user chooses not to continue, exit the loop and

display a goodbye message.

$2.$ Return from the main function: Ensure your main function returns $0$ to

indicate successful execution.

Step $5$: Testing the Program

$1.$ Compile and run your program: Make sure there are no syntax errors.

$2.$ Test different inputs: Enter positive, negative, and zero values to ensure

your program handles all cases correctly.

$3.$ Test the loop: Check if the program correctly prompts the user to continue

or exit based on their input.

Submission

$$ Save your program file with an appropriate name.

$$ Submit your file through the course$$s Blackboard.

Tips

$$ Pay attention to the syntax of if$-$else statements and loops.

$$ Make sure to use proper indentation and comments to make your code

readable.

$$ If you encounter any issues, refer to your textbook or ask for help from your

instructor or peers

Lab $2$:

Objective

The objective of this lab is to help you understand and implement basic control

structures in C$++.$ By the end of this lab, you will be able to:

Use if$-$else statements to make decisions in a program.

Use a do$-$while loop to repeat a block of code based on user input.

Instructions

Step $1$: Setting Up Your Environment

Open Visual Studio and create a new C$++$ project.

Create a new cpp file named as yourFullNameLab$2.$cpp

Step $2$: Writing the Program

Include the necessary header files: Start by including the iostream library

and the standard name space, which allows you to use input and output

streams.

Declare the main function: This is the entry point of your program.

Declare variables: You will need an integer variable to store the user's input

and a character variable to store the user's choice to continue or exit the

loop.

Step $3$: Implementing the do$-$while Loop

Prompt the user for input: Inside the do$-$while loop, ask the user to enter a

number.

Use if$-$else statements: Check if the entered number is positive or non$-$

positive $($this includes negative numbers and zero$)$ and display appropriate

messages.

Ask the user if they want to continue: After displaying the message, ask

the user if they want to enter another number. Store their response in the

character variable.

Repeat the loop: The loop should continue as long as the user enters $\text{'}y\text{'}$ or

$\text{'}Y\text{'}.$

Step $4$: Finalizing the Program

Exit the loop: When the user chooses not to continue, exit the loop and

display a goodbye message.

Return from the main function: Ensure your main function returns $0$ to

indicate successful execution.

Step $5$: Testing the Program

Compile and run your program: Make sure there are no syntax errors.

Test different inputs: Enter positive, negative, and zero values to ensure

your program handles all cases correctly. Test the loop: Check if the program correctly prompts the user to continue

or exit based on their input.

Submission

Save your program file with an appropriate name.

Submit your file through the course's Blackboard.

Tips

Pay attention to the syntax of if$-$else statements and loops.

Make sure to use proper indentation and comments to make your code

readable.

If you encounter any issues, refer to your textbook or ask for help from your

instructor or peers.

Program Run Sample

Enter a number: $15$

The number is positive.

Do you want to enter another number? $($y$/$n$)$; y

Enter a number: $-1$

The number is non$-$positive.

Do you want to enter another number? $($y$/$n$)$; y

Enter a number: $0$

The number is non$-$positive.

Do you want to enter another number? $($ y$/$n$)$: n

Coodbyel