Templates in c++,typename and class

Question

What is the difference between writing a template in c++ in the below both ways

template & template<

Answer 1

No difference at all. I prefer first one (mostly), but that is my personal taste. The language doesn't make any difference between them.

For template parameters, the keywords typename and class are equivalent. §14.1.2 says:

There is no semantic difference between class and typename in a template-parameter.

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If both are same,then why do we have them both if one is enough?

Stan Lippman explains this in his article:

Why C++ Supports both Class and Typename for Type Parameters?