Is actively throwing AssertionError in Java good practice? [duplicate]

Answer 1

I would prefer

    double apply(double x, double y) {
    switch(this) {
        case PLUS:   return x + y;
        case MINUS:  return x - y;
        case TIMES:  return x * y;
        default: assert this==DIVIDE: return x / y;
    }
}

1. We should not be throwing AssertionError because it should be reserved for actual assertions.
2. Other than assertions and some catch blocks there should not be a single bit of code that can not practicably reached.

But I would most prefer https://stackoverflow.com/a/41324246/348975