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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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