How to write template in C++?

How to write  template in C++?

#include<iostream>

using namespace std;

template <class t1, class t2>

class template1

{

t1 x;

t2 y;

public :

template1(t1 a ,t2 b )

{

x=a;

y=b;

}

void display()

{

cout<<x<<" and "<<y<<endl;

}

};

main()

{

template1<float, int > test1(4.34,543);

template1<int ,char> test2 (800, 'h');

test1.display();

test2.display();

return 0;

}

OUTPUT:

4.34 and 543

800 and h