Can you store a variable inside a if-clause?

Question

I\'m kinda waiting for a \'no\' answer on this question.

I was interested if you can save a variable at the same time when you checking it in an if-clause.

Answer 1

I have used that technique when iterating over lines from a BufferedReader:

BufferedReader br = // create reader
String line
while ((line = br.readLine()) != null) {
    // process the line
}

So yes, you can do an assignment, and the result off that will be the left hand side variable, which you can then check. However, it's not legal to declare variables inside a test, as they would then only be scoped to that expression.