C++ program to demonstrate function templete

#include<iostream>
using namespace std;
template<class T>
class array
{
T *arr;
int size;
public:
array(int n)
{
size=n;
arr=new T[size];
for(int i=0;i<size;i++)
arr[i]=i;
for(int i=0;i<size;i++)
cout<<arr[i]<<" ";

}
};
int main()
{
array<int> obj1(10);
array<double> obj2(20);
return 0;
}