exam watch (page 604) Generics constructor

[Pawanpreet Singh]

class X
{
public <X> X(X x){}
}

could anybody explain me this in detail?

Thanks in advance

[Barry Gaunt]

Is the above not the same as the following?

class X
{
    public <T> X(T x){}
}

I just throw this in for discussion (generics are still puzzling me).

[Pawanpreet Singh]

What is actual use of T and E and X in generics?

[Keith Lynn]

T and E are just conventions. T stands for type, and E stands for element. However, you can use valid Java identifiers for the type parameters.

I believe that the example in question was an example of what not to do. However, they are pointing out that there is no confusion on the part of the compiler if you use the same identifier for the type parameter as the name of the class and/or the name of the method.

[Pawanpreet Singh]

Thanks Keith