##### CMIS 102 Hands-On Lab Week 7 Overview This hands-on lab allows-(Answered)

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CMIS 102 Hands-On Lab

Week 7

Overview

This hands-on lab allows you to follow and experiment with the critical steps of developing a program

including the program description, analysis, test plan, design, and implementation with C code. The

example provided uses sequential, repetition, selection statements and two user-defined function.

Program Description

This program will provide options for a user to calculate the square or cube of a positive Integer input by

a user. The program will prompt the user to enter an Integer and then prompt the user if they want to

calculate the square of the cube of the number. Based on the inputs of the user, the program will output

the square of the cube of the positive integer. The program will then print the Integer and square or

cube of the integer based on the user?s original choice. The program will continue to prompt the user for

Integers and their calculation choice until the user enters a negative integer. The square and cube

calculations should be calculated using a function.

Analysis

I will use sequential, selection, and repetition programming statements and functions for the cube and

square calculations.

I will define three Integer numbers: IntValue, MenuSelect, Results to store the Integer value input by the

user, the Menu selection (1 for Square, 2 for Cube) of the user, and the results of the Square or Cube

functions.

The Square function will take one Integer as input and return one Integer as the output. The calculation

within the Square function is: Results = IntValue * IntValue

For example, if 10 was entered as the IntValue. Results = 10*10 = 100

The Cube function will take one Integer as input and return one Integer as the output. The calculation

within the Cube function is: Results = IntValue * IntValue*IntValue

For example, if 10 was entered as the IntValue. Results = 10*10*10 = 1000

A repetition loop can be used to loop through iterations until a negative is entered:

while(intValue > 0) (

?

End For

1

Test Plan

To verify this program is working properly the input values could be used for testing:

Test Case

1

2

3

Input

IntValue=10

MenuSelect=1

IntValue=10

MenuSelect=2

intValue=-1

MenuSelect=N/A

Expected Output

Square of 10 is 100

Cube of 10 is 1000

Program exits

Pseudocode

// This program will provide options for a user to calculate the square

// or cube of a positive Integer input by a user.

// Start Main program

Main

// Declare variables

Declare intValue, menuSelect,Results as Integer

// Set intValue to positive value to start loop

Set intVal = 1;

// Loop While input is a positive number

While intValue > 0

Print "Enter a positive Integer:?

Input intValue

// Only perform menu and function calls is integer is positive

If intValue > 0 Then

Print "Enter 1 to calculate Square, 2 to Calculate Cube "

Input menuSelect

If menuSelect == 1

Then

// Call the Square Function

Set Results = Square(intValue)

Print intValue,Results

Else If menuSelect == 2 Then

// Call the Cube function

set Results = Cube(intValue)

Print intValue,Results

Else

Print ?Invalid menu item, only 1 or 2 is accepted?

End If

End If

END While

// End of Main program

End Program

2

// Square Function

Function Square(value) as Integer

Set Square = value*value

End Function

// Cube Function

Function Cube(value) as Integer

Set Cube = value*value*value

End Function

C Code

The following is the C Code that will compile in execute in the online compilers.

// C code

// This program will provide options for a user to calculate the square

// or cube of a positive Integer input by a user.

// Developer: Faculty CMIS102

// Date: Jan 31, XXXX

#include <stdio.h>

int main ()

{

/* variable definition: */

int intValue, menuSelect,Results;

intValue = 1;

// While a positive number

while (intValue > 0)

{

printf ("Enter a positive Integer\n: ");

scanf("%d", &intValue);

if (intValue > 0)

{

printf ("Enter 1 to calculate Square, 2 to Calculate Cube \n: ");

scanf("%d", &menuSelect);

if (menuSelect == 1)

{

// Call the Square Function

3

Results = Square(intValue);

printf("Square of %d is %d\n",intValue,Results);

}

else if (menuSelect == 2)

{

// Call the Cube function

Results = Cube(intValue);

printf("Cube of %d is %d\n",intValue,Results);

}

else

printf("Invalid menu item, only 1 or 2 is accepted\n");

}

}

return 0;

}

/* function returning the Square of a number */

int Square(int value)

{

return value*value;

}

/* function returning the Cube of a number */

int Cube(int value)

{

return value*value*value;

}

Setting up the code and the input parameters in ideone.com:

Note the Input values for this run were:

10

1

10

2

4

-99

You can change these values to any valid integer values to match your test cases.

5

Results from running the programming at ideone.com:

Learning Exercises for you to complete

1. Using the Square and Cube functions as models, Create an application that includes a function

named ?Shrink? that would take an Integer and return the Integer divided by 2? (Hint: your

returned value should probably be a double type.) Support your experimentation with screen

captures of executing the new code.

2. Prepare a new test table with at least 3 distinct test cases listing input and expected output for

the code you created after step 1.

3. What would happen if you removed the following code from our design?

If intValue > 0

Support your argument with screen captures of executing the new code.

4. Modify the original code and add an additional function of your choice. The function should be

unique and something you created for this assignment. Support your experimentation with

screen captures of executing the new code. Prepare a test table with at least 3 distinct test cases

listing input and expected output for your unique function.

6

Grading guidelines

Submission

Successfully demonstrates execution of this lab with online

compiler. Includes a screen capture.

Modifies the code to create an application that includes a

function named ?Shrink? that would take an Integer and

return the Integer divided by 2 Support your experimentation

with screen captures of executing the new code.

Provides a new test table with at least 3 distinct test cases

listing input and expected output for the code you created

after step 1.

Describes what would happen if you removed the ?if intValue

= 0? line was removed. Support your argument with screen

captures of executing the new code.

Modifies the original code and adds an additional unique

function of your choice. Supports your experimentation with

screen captures of executing the new code. Prepares a test

table with at least 3 distinct test cases listing input and

expected output for your unique function

Document is well-organized, and contains minimal spelling

and grammatical errors.

Total

Points

2

2

1

1

3

1

10

7

Paper#9209246 | Written in 27-Jul-2016

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