Question

In C code

1. Write and submit the algorithm OR flowchart to indicate you understand the problem

2. Create a project and name the source code lastname_firstname_prog5.c

3. Use the prog5.c as a guide, copy/ paste into your project source code

*** build run and test, the outline code - You will need to declare an integer variable called again and initialize it

4. Add the function prototype and implement the function definition for the Greeting function

5. Add the function call to Greeting in the main function

*** build run and test Now it is time to Implement the UserDecision function

6. Add the function prototype and Implement the function definition for the UserDecision function

7. Function definition: a. Declare an integer b. Use printf statements to ask the user what they want to enter (1), (2), (0) c. Scan into the integer d. Return the integer value

8. Call the function twice from the main function a. before the while loop(initialization) b. inside the while loop(update)

9. The integer that is returned from this function will be assigned to the variable again

*** build run and test (try entering a 1, a 2, and a 0)

SAMPLE OUTPUT AT THIS STEP: Welcome to the number/ character converter! This program converts characters to numbers and numbers to characters --You may enter any single character on the keyboard --You may enter any integer value, negative or positive --You may be surprised by the output!! ------------------------------------------------------------------------- Would you like to enter a character or a number? (ENTER (1) to enter a character, (2) to enter a number, (0) to quit) >> 1 ------------------------------------------------------------------------- Would you like to enter a character or a number? (ENTER (1) to enter a character, (2) to enter a number, (0) to quit) >> 2 ------------------------------------------------------------------------- Would you like to enter a character or a number? (ENTER (1) to enter a character, (2) to enter a number, (0) to quit) >> 0 Press any key to continue . . .

10. Now add the message for the user if anything other than a 0, 1, or 2 is entered (the else inside the while loop)

***build/run and test

11. Now it is time to implement the GetCharacter function, add the prototype and definition,

12. Function definition: a. Declare a character b. Prompt for the character c. Read (scanf) the character – REMEMBER TO ADD the space between “ and % scanf(“ %c”, &tempchar); d. Return the character

13. Add the function call (inside the block of code if again == 1)

***build/run and test – Add a printf statements to test that everything is working as instructed

14. The next function to implement will be the ProcessCharacterInput function, add the prototype and definition

15. Function definition: a. Declare 2 characters and 2 integer variables b. Use toupper and tolower functions to assign an uppercase version and a lowercase version of the characterInput function argument variable c. Use (int) type casting to assign the numerical value for the 2 characters (upper and lower) d. Print all 4 results onto the screen

16. Add the function call and pass the character that was returned from GetCharacter function

***build/run and test

17. Now it is time to implement the GetInt function, add the prototype and definition.

18. Function definition: a. Declare an integer b. Prompt for the integer c. Read (scanf) the integer – DO NOT ADD A SPACE for an integer d. Return the integer

19. Add the function call (inside the block of code if again == 2)

***build/run and test – Add a printf statements to test that everything is working as instructed

20. The next function to implement will be the ProcessIntegerInput function, add the prototype and definition

21. Function definition: a. Declare 1 character b. Use (char) type casting to assign the character version of the integer argument c. Return the character

22. Add the function call and pass the character that was returned from GetInteger function

23. Print the original integer and the character onto the screen.

Answer 1

// C program to implement an application for Character and Integer conversion

#include <stdio.h>

#include <stdlib.h>

#include <ctype.h>

// function declaration

void Greeting();

int UserDecision();

char GetCharacter();

void ProcessCharacterInput(char ch);

int GetInt();

char ProcessIntegerInput(int in);

int main(void) {

               int choice;

               Greeting();

               choice = UserDecision();

               while(choice != 0) //loop that continues till the user quits

               {

                              if(choice == 1) // character to integer

                              {

                                             ProcessCharacterInput(GetCharacter());

                              }else if(choice == 2) // integer to character

                              {

                                             int in = GetInt();

                                             char ch = ProcessIntegerInput(in);

                                             printf(" Integer : %d Character : %c",in,ch);

                              }else if(choice == 0) // quit

                                             break;

                              else

                                             printf(" Invalid choice. Valid choices are 0,1 or 2");

                              choice = UserDecision();

               }

               return EXIT_SUCCESS;

}

// function to display greetings to user

void Greeting()

{

               fflush(stdout);

               printf(" Welcome to the number/ character converter! This program converts characters to numbers and numbers to characters");

               printf(" --You may enter any single character on the keyboard --You may enter any integer value, negative or positive --You may be surprised by the output!! ");

               printf(" ------------------------------------------------------------------------- ");

}

// function to get the input for user's choice

int UserDecision()

{

               int choice;

               printf(" Would you like to enter a character or a number? (ENTER (1) to enter a character, (2) to enter a number, (0) to quit) : ");

               fflush(stdout);

               scanf("%d",&choice);

               return choice;

}

// function to get and return an input character

char GetCharacter()

{

               char ch;

               printf(" Enter a character : ");

               fflush(stdout);

               scanf(" %c",&ch);

               return ch;

}

// function to convert the character to integer and print them

void ProcessCharacterInput(char ch)

{

               char chUpper, chLower;

               int inUpper, inLower;

               chUpper = toupper(ch);

               chLower = tolower(ch);

               inUpper = (int)chUpper;

               inLower = (int)chLower;

               printf(" Upper Character : %c Integer value : %d Lower Character : %c Integer value : %d",chUpper,inUpper,chLower,inLower);

}

// function to get and return an input integer

int GetInt()

{

               int in;

               printf(" Enter an integer : ");

               fflush(stdout);

               scanf("%d",&in);

               return in;

}

// function to convert an integer to character

char ProcessIntegerInput(int in)

{

               char ch;

               ch = (char)in;

               return ch;

}

//end of program

Output: