Template<typename T, typename U>?

#1

sir i am not able to understand anything taught in last 2-3 min in this video about this concept , its not clearly describe here in the video about that concept

#2

What Prateek Sir is telling in the last minute of the video, is that suppose you want to create a class that uses 2 or say more variable and you do not know what is their datatype before hand, than for each variable you can define a variable using typename.
Eg
template<typename T, typename U, typename X>
class using_Template{
T a;
U b;
X c;
.
.
.
.
}

int main()
{
.
.
.
using_Template<int, char, float> testing;
.
.
.
}

Here we have variable a,b,c whose datatype we do not know before hand, so we use typename to create generic variable. In the main function when we create object of class we define their datatype, a is int, b is char and c is float.

#3

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