Why Doesn't Java Allow Casting Boolean -> Int?

Question

I was wondering why Java doesn\'t allow casting from a boolean to an int, like so:

boolean foo = true;
int bar = (int)foo;

This can be done

Answer 1

Java supports widening conversions on primitive numeric types. However, boolean is not considered a numeric type.

The supported widening conversions are listed under "Widening Primitive Conversion" in the Java Language Specification.