Question

C+++ Program

Part A

Create a class called die (the singular of dice). The die class should have a single data member called value. The die constructor should initialize the die’s value to 1. Create a member function called roll() that gives the die a random value between 1 and 6. Create a member function called show() that displays value. In main, demonstrate the creation of a die object to validate it is working.

Part B

Revise main to count the number of occurrences of each die value. The best result is maximum number of any particular value. If you have the same number of two values, the higher value determines the best result.

Sample Output:

Roll: 23541

Best result: You have one 5

Roll: 12346

Best result: You have one 6

Roll: 41321

Best result: Two of a kind: 1

Roll: 44364

Best result: Three of a kind: 4

Roll: 65533

Best result: Two of a kind: 5

(Note: even though there are two three's, the two five's make up the better result.)

Answer 1

Note: Variable names, function names, and class names are used in such a way for a better understanding. These can be changed according to the user's choice. Please refer to code snippets for a better understanding of comments and indentations.

IDE Used: Dev C++

Program Code

#include <iostream>
#include <ctime>
#include <cstdlib>

using namespace std;

// dice class definition
class die
{
   // private members
   private :
       int value;
  
   // public members  
   public :
  
   // default constructor
       die()
       {
           value = 1;          
       }
      
       // function to roll a dice
       int roll()
       {
          
           value = rand()%6 + 1;
           return value;
      
       }
      
       // function to show the die value
       void show()
       {
           cout<<value;
       }  
};

int main()
{
   // create a dice object
   die d1;
  
      
   int idx;
  
   // emoty array to store dice value occurence
   int roll_val[6]={};
  
   // to store best value and its occurence
   int best_val;
   int best_count=0;
  
   // making time seed to null
   srand(time(NULL));
  
   // showing the roll values
   cout<<"Roll : ";
  
   // 5 draws
   // can be changed according to user's choice
   for(idx=0; idx<5; idx++)
   {
       roll_val[d1.roll()-1]++;
       d1.show();
   }
  
   // finding the best value
   cout<<"\nBest Result : ";
  
   for(idx = 0; idx <6; idx++)
   {
   if(roll_val[idx]>=best_count)
       {
           best_val = idx+1;
           best_count = roll_val[idx];
       }
   }
  
   // showing the best value occurence
   if(best_count == 1)
   {
       cout<<"You have one "<<best_val;
   }
   else if(best_count == 2)
   {
       cout<<"Two of a kind : "<<best_val;
   }
   else if(best_count == 3)
   {
       cout<<"Three of a kind : "<<best_val;
   }
   else if(best_count == 4)
   {
       cout<<"Four of a kind : "<<best_val;
   }
   else
   {
       cout<<"Five of a kind : "<<best_val;
   }
      
   return 0;
}

Code Snippets

#include <iostream> #include <ctime> #include <cstdlib> using namespace std; // dice class definition class die 997 // private members private : int value; // public members public : // default constructor die value = 1; // function to roll a dice int roll value = rand(%6 + 1; return value; // function to show the die value void show cout<<value; 49 41 Q int main() { // create a dice object die d1;

int idx; // emoty array to store dice value occurence int roll_val[6]={}; // to store best value and its occurence int best_val; int best_count=e; // making time seed to null srand(time(NULL)); // showing the roll values cout<<"\nRoll : "; // 5 draws // can be changed according to user's choice for(idx=e; idx<5; idx++) roll_val[di.roll()-1]++; d1.Show(); // finding the best value cout<<"\nBest Result : "; for(idx = 8; idx <; idx++) if(roll_val[idx]>best_count) best_val = idx+1; best_count = roll_val[idx]; // showing the best value occurence if (best_count == 1) cout<<"You have one "<<best_val; else if (best_count == 2) cout<<"Two of a kind : "<<best_val;

else if (best_count == 3) cout<<"Three of a kind : "<<best_val; else if (best_count == 4) cout<<"Four of a kind : "<<best_val; else 100 cout<<"Five of a kind : "<<best_val; 101 103 return a; 184 L 105 }

Sample Outputs

Roll : 44132 Best Result : Two of a kind : 4 Process exited after 0.03589 seconds with return value o Press any key to continue - - -

Roll : 55116 Best Result : Two of a kind : 5 Process exited after 0.02324 seconds with return value o Press any key to continue... ---------

Roll : 32415 Best Result : You have one 5 Process exited after 0.01664 seconds with return value o Press any key to continue...