Variables declared inside a for loop are limited in scope to the loop.
Any variable declared within a block statement such as a for or if cannot be referenced outside the block.
For the [removed]y >= z && a == b) to be true, at least one of (y >= z) and (a == b) must be true.
For the result of a "&&" operation to be true, both operands must be true.
A break statement must always be present in the default case of a "switch" selection structure.
The break statement, which brings the computation out of the "switch" selection structure, is not required for the defalut case.
The "switch" selection structure must end with the default case.
The default case in a switch structure is optional and only used when none of the other cases match.
The [removed]y >= z && a == b) is evaluated by first evaluating the expression y >= z, and then evaluating a == b.
If y >= z is false, then there is no need to evaluate the second expression.