Question

Description:

The purpose of this assignment is to practice writing code that calls functions, and contains loops and branches. You will create a C program that prints a menu and takes user choices as input. The user will make choices regarding different "geometric shapes" that will be printed to the screen.

General Comments:

Your code must contain at least one of all of the following control types:

• nested for() loops
• a while() or a do-while() loop
• a switch() statement
• an if-else statement
• functions (see below)

Important! Consider which control structures will work best for which aspect of the assignment. For example, which would be the best to use for a menu?

The first thing your program will do is print a menu of choices for the user. You may choose your own version of the wording or order of choices presented, but each choice given in the menu must match the following:

Menu Choice	Valid User Input Choices
Enter/Change Character	'C' or 'c'
Enter/Change Number	'N' or 'n'
Draw Line	'L' or 'l'
Draw Square	'S' or 's'
Draw Rectangle	'R' or 'r'
Draw Triangle (Left Justified)	'T' or 't'
Quit Program	'Q' or 'q'

A prompt is presented to the user to enter a choice from the menu. If the user enters a choice that is not a valid input, a message stating the choice is invalid is displayed and the menu is displayed again.

Your executable file will be named Lab3_<username>_<labsection>

Your program must have at least five functions (not including main()) including:

• A function that prints the menu of choices for the user, prompts the user to enter a choice, and retrieves that choice. The return value of this function must be void. The function will have one pass-by-reference parameter of type char. On the function's return, the parameter will contain the user's menu choice.

• A function that prompts the user to enter a single character. The return value of the function be a char and will return the character value entered by the user. This return value will be stored in a local variable, C, in main(). The initial default value of this character will be ' ' (blank or space character).

• A function that prompts the user to enter a numerical value between 1 and 15 (inclusive). If the user enters a value outside this range, the user is prompted to re-enter a value until a proper value is entered. The return value of the function be an int and will return the value entered by the user. This return value will be stored in a local variable, N, in main(). The initial default value of this character will be 0.

• A function for each geometric shape. Each function will take the previously entered integer value N and character value C as input parameters (You will need to ensure that these values are valid before entering these functions). The return values of these functions will be void. The functions will print the respective geometric shape of N lines containing the input character C. N is considered the height of the shape. For a line, it is just printing the character in C, N number of times, so that it creates a vertically standing line of length N. For N = 6 and C = '*', the draw line function should output:

    *
    *
    *
    *
    *
    *


    If a square is to be printed, then the following output is expected:
    ******
    ******
    ******
    ******
    ******
    ******


    In case of a rectangle, we assume its width is N+5. It should look like the following:
    ***********
    ***********
    ***********
    ***********
    ***********
    ***********


    If the user selects Triangle, then it should print a left justified triange which looks like the following:

    *
    **
    ***
    ****
    *****
    ******

Answer 1

#include <stdio.h>

void print_menu(char *c)//to print the menu
{
printf("Menu Choice Valid User Input Choices\n");
printf("Enter Change Character 'C' or 'c'\n");
printf("EnterChange Number 'N' or 'n'\n");
printf("Draw Line 'L' or 'l'\n");
printf("Draw Square 'S' or 's'\n");
printf("Draw Rectangle 'R' or 'r'\n");
printf("Draw Triangle (Left Justified) 'T' or 't'\n");
printf("Quit Program 'Q' or 'q'\n");
printf("\nEnter Your Choice:\n");
scanf("%c",c);
}
void l(char ch,int n)//to print line
{
for(int i=0;i<n;i++)
printf("%c\n",ch);
}
void s(char ch,int n)//to print square
{
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
printf("%c",ch);
printf("\n");
}
  
}
void r(char ch,int n)//to print rectangle
{
for(int i=0;i<n;i++)
{
for(int j=0;j<n+5;j++)
printf("%c",ch);
printf("\n");
}
}
void t(char ch,int n)//to print triangle
{
for(int i=0;i<n;i++)
{
for(int j=0;j<=i;j++)
printf("%c",ch);
printf("\n");
}
}
int main(void) {
   // your code goes here
while(1)
{
char c;
print_menu(&c);
char ch;//these are the initial default value
int n;
//using if else block to achive this
if(c=='c' || c=='C')
{
printf("\nEnter Character:\n");
scanf("%c",&ch);
}
else if(c=='N' || c=='n')
{
printf("Enter Number:\n");
scanf("%d",&n);
}
else if(c=='L' || c=='l')
l(ch,n);
else if(c=='s' || c=='S')
s(ch,n);
else if(c=='r' || c=='R')
r(ch,n);
else if(c=='t' || c=='T')
t(ch,n);
else if(c=='q' || c=='Q')
break;
else
printf("Invalid Choice\n");
}
   return 0;
}

Sample output:

Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:
Enter Number:3
Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:c

Enter Character:*
Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:l
*
*
*
Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:s
***
***
***
Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:r
********
********
********
Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:t
*
**
***
Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:a
Invalid Choice
Menu Choice Valid User Input Choices
Enter Change Character 'C' or 'c'
EnterChange Number 'N' or 'n'
Draw Line 'L' or 'l'
Draw Square 'S' or 's'
Draw Rectangle 'R' or 'r'
Draw Triangle (Left Justified) 'T' or 't'
Quit Program 'Q' or 'q'

Enter Your Choice:q

please refer the screen shots for more info: