Bubble sort using CPP

Program to implement bubble sort using c++

#include<iostream.h>

#include<conio.h>

#include<stdlib.h>

const int MAX=50;

class array

{private:

          int arr[MAX];

          int count;

public:

          array()

          {count=0;}

          void add(int);

          void display(void);

          void sort();

};

void array::add(int item)

{        if(count<MAX)

          { arr[count]=item;

             count++;

          }

          else

             cout<<"\n Array is full";

}

void array::display()

{        cout<<"There are "<<count<<" elements in the list\n";

          cout<<"They are : \n\n";

          for(int I=0;I<count;I++)

                   cout<<arr[I]<<"  ";

}

void array::sort()

{        for(int I=0;I<count-1;I++)

          { int flag=1;

                   for(int j=0;j<(count-I-1);j++)

                             if(arr[j]>arr[j+1])

                             {        int t=arr[j];

                                      arr[j]=arr[j+1];

                                      arr[j+1]=t;

                                      flag=0;

                             }

                   if (flag) break;

}

return;

}

void main()

{

          int element,n,I,c;

          array bubble;

          while(1)

          {        clrscr();

                   cout<<"\n Perform the Bubble sort";

                   cout<<"\n-------------------------------------";

                   cout<<"\n\n1.Input data into the list";

                   cout<<"\n2.Display data in the list";

                   cout<<"\n3.Sort the list";

                   cout<<"\n4.Exit from the program";

                   do

                   {        cout<<"\n\nSelect your choice(1:4)";

                             cin>>c;

                             cout<<"";

                   }

                   while((c<1)||(c>4));

                   if(c==4)exit(1);

                   clrscr();

                   switch ( c)

                   {        case 1 : clrscr();

                                         cout<<"How many elements : ";

                                      cin>>n;

                                      for(I=0;I<n;I++)

                                      {        cout<<"Enter a number "<<I+1<< " : ";

                                                cin>>element;

                                                bubble.add(element);

                                      }

                                      break;

                             case 2 : clrscr();

                                      bubble.display();

                                      break;

                             case 3 :

                                      clrscr();

                                      bubble.sort();

                                      cout<<"List is successfully sorted \n";

                                      break;

                   }

                   cout<<"\nPress any key to continue................";

                   getch();

          }

}