implemetation of array

#include<iostream>
#include<conio.h>
using namespace std;

class Emp
{
    public:
        int  id;
        char  name[30];


        void getData()
        {
            cout<<"\n Enter id of the employee: ";
            cin>>id;
            cout<<" \n Enter name of employee  : ";
            cin>>name;
        }

        void display()
        {

            cout<<"\n ID of the employee  : "<<this->id;
            cout<<"\n Name of the employee: "<<this->name;
        }

};

int main()
{
    int choice;
    cout<<"\n\n ********* MENU **********";
    cout<<"\n1.Array of Objects";
    cout<<"\n2.Dynamic Allocation of Memory";
    cout<<"\n3.Exit";
    while(choice!=3)
    {
        cout<<"\nEnter your Choice: ";
        cin>>choice;
    switch(choice)
    {

        case 1:
            cout<<"\n\nEnter Your Choice: ";
            cin>>choice;
            Emp emp[30];
            int n,i;
            cout<<"\n Enter number of employee: ";
            cin>>n;

            for(i = 0; i<n; i++)
            {
                emp[i].getData();
            }
            for(i = 0; i<n; i++)
            {
                emp[i].display();
            }
        break;

        case 2:
            int* p = NULL;
            p = new(nothrow) int;
            if(!p)
            {
                cout<<"\n Memory is not allocated some error occured";
            }
            else
            {

                *p = 20;
                cout << "\n\nValue of p: " << *p << endl;
            }
         delete p;
         break;


        }
}
    return 0;
}