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It looks like java.net doesn't like me any more. I'm not allowed to post a comment to Alex Winston's blog:

Alex Winston's Blog

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So I'll post what would have been a comment on that blog here. This is in response to a Cay Horstmann comment that reads:

Cay Horstmann: I think int plus2(int) is a non-starter. Don't entangle the declared variable within fragments of the type. That approach has been thoroughly discredited after it made a disastrous appearance in C/C++. Try writing a function that yields an int=>int function using your syntax...

@Cay, it is actually quiet simple to write such a function:

int makeAdder(int n)(int x) = int (int n)(int x) {
  return int(int x) { x + n };
}

Given the above, we can have

int add7(int x) = makeAdder(7);

and

int result = add7(8); // yields 15