java - switch expression can't be float, double or boolean

Question

Why doesn't the switch expression allow long, float, double or boolean values in Java? why is only int (and those that are automatoically promoted to int) allowed?

question from:https://stackoverflow.com/questions/5141830/switch-expression-cant-be-float-double-or-boolean

Answer 1

Float and double would be awkward to use reliably even if they were possible - don't forget that performing exact equality matches on float/double is usually a bad idea anyway, due to the nature of the representation.

For Boolean values, why not just use if to start with?

I can't remember ever wanting to switch on any of these types, to be honest. Do you have a particular use case in mind?