An Example with Two Generic Data Types
#include <iostream>
using namespace std;
   
template <class Type1, class Type2> class myclass
{
  Type1 i;
  Type2 j;
public:
  myclass(Type1 a, Type2 b) { i = a; j = b; }
  void show() { cout << i << ' ' << j << '\n'; }
};
   
int main()
{
  myclass<int, double> ob1(10, 0.23);
  myclass<char, char *> ob2('X', "Templates add power.");
   
  ob1.show(); 
  ob2.show(); 
   
  return 0;
}