Question

In Java, we can extend the current scope in a method to refer variables with this if it is hidden by a formal parameter. A typical example is what we do in constructors:

class A {
    int i;
    A(int i) { this.i = i; }
}

Now, is there any similar trick in Scala? For instance, I have a definition like this:

class A(i: Int) {
   val i = i; // ?
}

A trivial solution would be to rename one of the parameters to something else (like using underscores in C++), but I would like to avoid that.

Is there any alternatives for this?

Thanks in advance!

Answer 1

Is it exactly the same? Then just declare it a val (or var):

class A(val i: Int) {}

Is it not exactly the same? Then you’ll have to use two names.