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/*Tyler Taormina and Isabella Mon
* CST 116
*
* Project 2
*/
#include <iostream>
#include <iomanip>
using namespace std;
int GetData();
void DisplayMenu (int&);
void ProcessMenuChoice (int, int&);
void IsPosNeg (int);
void IsOddEven (int);
int main() {
int User_Value = 0;
int Menu_choice = 0;
User_Value = GetData();
DisplayMenu(Menu_choice);
ProcessMenuChoice(Menu_choice, User_Value);
return 0;
}
int GetData(){
//receives input from user within negative million and positive million.
int usr_data = 0;
cout << "================================================================" << endl;
cout << "Program Running..." << endl;
cout << "================================================================\n\n\n" << endl;
cout << "Please enter the number you would like to have tested: ";
cin >> usr_data;
if (usr_data < -1000000 || usr_data > 1000000 ){
cout << "Sorry. The number you have entered is out of bounds. Please try again." << endl;
GetData();
}
return usr_data;
}
void DisplayMenu(int& menu_choice) {
//displays the menu of functions for the user to choose from
cout << "1) Determine if the number is positive or negative.\n";
cout << "2) Determine if the number is odd or even.\n";
cout << "3) Determine the number of digits in the entered number.\n";
cout << "4) Determine what digit is at a given position in the number.\n";
cout << "5) Display Addition Table.\n";
cout << "6) Display Multiplication Table.\n";
cout << "7) Exit Program.\n\n";
cout << "Enter: ";
cin >> menu_choice;
if (menu_choice > 7 || menu_choice < 1) {
cout << "Invalid Entry. Please enter a number from the options list provided.\n\n\n\n" << endl;
DisplayMenu(menu_choice);
}
}
void ProcessMenuChoice (int menu_choice, int& usr_data) {
int program_rerun = 0;
switch(menu_choice){
case 1:
IsPosNeg(usr_data);
break;
case 2:
IsOddEven(usr_data);
break;
case 3:
cout << "Find num digits" << endl;
break;
case 4:
cout << "Find digit at position" << endl;
break;
case 5:
cout << "Display addition table" << endl;
break;
case 6:
cout << "Display multiplication table" << endl;
break;
case 7:
cout << "End program." << endl;
break;
default:
break;
}
cout << "Press 1 and enter to rerun program. Enter any other number to close program: ";
cin >> program_rerun;
if (program_rerun == 1)
main();
else {
cout << "================================================================" << endl;
cout << "Program Closing..." << endl;
cout << "================================================================\n\n\n" << endl;
}
}
void IsPosNeg (int usr_data) {
// checks whether the number entered is positive or negative.
// Displays appropriate message.
if (usr_data < 0)
cout << "The number is negative" << endl;
else if (usr_data > 0)
cout << "The number is positive." << endl;
else
cout << "The number is zero." << endl;
}
void IsOddEven(int usr_data) {
// checks if the user enterd number is odd or even.
// displays an appropriate message.
if ((usr_data % 2) == 0)
cout << "The number is even." << endl;
else
cout << "The number is odd." << endl;
}
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