Question

I need help solving this assignment, you are given a full piece of code that does not run correctly. Some of the bugs can be found at compile time, while others are found at run time. Access the UserMenu.cpp code file (in the zip file in Start Here) and use debugging practices and the debugger in Visual Studio to find each bug. Fix the bug and write a comment in the code giving a description of how you found the problem and how you fixed it. Submit the working source code.

// UserMenu_Solution.cpp : This code contains five errors before it will work as desired. Find those errors,
// document a description of the errors and their fix, and fix them. Try using the debugger to
// step through the program to find the bugs. As you step through, take notice of the information
// you can see.

//This program builds a menu based on switchcase statements to determine where a user wants to go in the program.
// Program options are then to solve the Tower of Hanoi problem, view the user profile, or exit the program.

#include "stdafx.h"
#include <cstdlib>
#include <iostream>

void Tower(int, char, char, char);

int main()
{
   int choice;
   cout << "1. Solve the Tower of Hanoi" << endl;
   cout << "2. View Your Profile" << endl;
   cout << "3. Exit" << endl;
   cout << "Enter your choice : " << endl;
   cin >> choice;
   switch (Choice)
   {
       case 1:
           system("cls");
           int numDiscs;

           cout << "**Tower of Hanoi**\n";
           cout << Enter the number of discs : ;
           cin >> numDiscs;
           cout << "\n\n";
           Tower(numDiscs, 'A', 'B', 'C');
           break;
       case :
           cout << "Username:\t\tPlayer 1" << endl;
           cout << "Gamertag:\t\tImTheBest" << endl;
           cout << "No. Hours Played:\t173" << endl;
           break;
       case 3:
           cout << "Now Exiting." << endl;
           break;
       default:
           cout << "You did not choose anything...so exit this program." << endl;
   }

   return 0;
}

void Tower(int numDiscs, char from, char aux, char to){
   if (numDiscs == 1){
       cout << "\tMove disc 1 from " << from << " to " << to << "\n";
       return;
   }
   else{
       tower(numDiscs - 1, from, to, aux);
       cout << "\tMove disc " << numDiscs << " from " << from << " to " << to << "\n";
       Tower(numDiscs - 1, aux, from, to);
   }
}

Answer 1

Error 1

The namespace ‘std’ is not declared.

To fix that, we need to add this statement on top, below the header files:

using namespace std;

Error 2

In switch-case statement, the variable ‘Choice’ is incorrect because, variables are case sensitive and all the letters of ‘choice’ are in lower case.

To fix that, we need to change ‘Choice’ to ‘choice’

switch (choice)

    {

Error 3

In switch case statement, inside the case 1, where it is prompting user to enter the number of discs, the output string is not enclosed in double quotes.

To fix this, we need to enclose this string in double quotes

cout << "Enter the number of discs : ";

Error 4

In switch case statement, in second case, the case value is missing.

To fix this, we need to put case value to 2 as we can see the option 2 is about displaying the profile which is the content of case 2.

Error 5

In Tower function, inside the else part, the function name ‘tower’ is incorrect because the function name is also case sensitive and correct name is “Tower”

To fix this, we need to make it “Tower” in place of “tower”.

Tower(numDiscs - 1, from, to, aux);

Complete code after fixing errors, changes are in bold:

#include "stdafx.h"

#include <cstdlib>

#include <iostream>

using namespace std;

void Tower(int, char, char, char);

int main()

{

       int choice;

       cout << "1. Solve the Tower of Hanoi" << endl;

       cout << "2. View Your Profile" << endl;

       cout << "3. Exit" << endl;

       cout << "Enter your choice : " << endl;

       cin >> choice;

       switch (choice)

       {

       case 1:

              system("cls");

              int numDiscs;

              cout << "**Tower of Hanoi**\n";

              cout << "Enter the number of discs : ";

              cin >> numDiscs;

              cout << "\n\n";

              Tower(numDiscs, 'A', 'B', 'C');

              break;

       case 2:

              cout << "Username:\t\tPlayer 1" << endl;

              cout << "Gamertag:\t\tImTheBest" << endl;

              cout << "No. Hours Played:\t173" << endl;

              break;

       case 3:

              cout << "Now Exiting." << endl;

              break;

       default:

              cout << "You did not choose anything...so exit this program." << endl;

       }

       return 0;

}

void Tower(int numDiscs, char from, char aux, char to){

       if (numDiscs == 1){

              cout << "\tMove disc 1 from " << from << " to " << to << "\n";

              return;

       }

       else{

              Tower(numDiscs - 1, from, to, aux);

              cout << "\tMove disc " << numDiscs << " from " << from << " to " << to << "\n";

              Tower(numDiscs - 1, aux, from, to);

       }

}

Below is the sample output that is generated after fixing all errors:

1. Solve the Tower of Hanoi 2. Uiew Your Profile 3. Exit Enter your choice

**Tower of Hanoi** Enter the number of discs : 3 Move disc 1 from A to C Move disc 2 from A to B Move disc 1 from C to B Move disc 3 from A to C Move disc 1 from B to A Move disc 2 from B to C Move disc 1 from A to C

1. Solve the Tower of Hanoi 2. Uiew Your Profile 3. Exit Enter your cho ice 2 Username Gamertag No Hours Played: Player 1 ImThe Best 173

Let me know if you have any queries.

Thanks!