program to use constructor and destructor to display student record

#include<iostream.h>
#include<stdio.h>
#include<conio.h>
class mca
{
    private:
    char *name,*t;
    int rn;
    float age;
    public:
    mca()
    {

        name=new char[20];
        //rn=new int;
        //age=new float[4];
    }
    void getdata()
    {
        name=t;
        cout<<"\nenter the student name,rn,age ";
        gets(name);
        cin>>rn;
        cin>>age;
    }
    void display()
    {
        cout<<"\nthe student name "<<name<<" roll number "<<rn<<" age "<<age;
    }
    ~mca()
    {
        delete []name;
    }
};
void main()
{
    clrscr();
    mca *ptr=new mca;
    mca *ptr1=new mca;
    ptr=ptr1;
    (*ptr).getdata();
    ptr->display();
    getch();
    //delete []ptr;
}