Switch statement problem

[steve_rm]

Hello

The program will ask the user to select from the menu options, then call that function.

Can you tell me is there a better way to write this switch statement. My programming does not work well, and l am wondering is there a better way to write this type of program.

One more quick question, what is the keyword that allows you to clear the screen, so when a menu option is selected it will display a new screen.

My code is below

Thanks in advance

#include "stdio.h"
#include "ctype.h"
#include "conio.h"
 
//Function prototypes
void Divide(void);
void Multiply(void);
void Subtrack(void);
void Add(void);
 
void main(void)
{
    int MenuOption = 0;
    char Exit = NULL;
 
    printf("Welcome to Mr Calculator");
    printf("\n[1] Add");
    printf("\n[2] Subtract numbers");
    printf("\n[3] Divide numbers");
    printf("\n[4] Multiply numbers");
    printf("\n[5] Exit from program");
 
    do{
        printf("\nPlease choose a option from the menu: ");
        scanf("%d",&MenuOption);
 
        switch(MenuOption)
        {
            case(1):
                //Function to add
                break;
            case(2):
                //Function to subtract
                break;
            case(3):
                //Function to divide
                break;
            case(4):
                //Function to multiply
                break;
            case(5):
                printf("Are you sure you want to exit this program (y/n): ");
                Exit = getchar();
                Exit = toupper(Exit);
            default:
                printf("Invalid - input, please re-enter");
        }
    }while(MenuOption != 'Y');
}
 
void Add(void)
{
    //Code to go here
}
 
void Subtract(void)
{
    //Code to go here
}
 
void Multiply(void )
{
    //Code to go here
}
 
void divide(void )
{
    //Code to go here
}