Java simplify the syntax

What would be the most terse way in Java to check for the following condition

int m, n;

The condition to check is whether either m or n are negative but both shouldn't be negative. I'm looking for a te开发者_C百科rse yet simple syntax

(m < 0) ^ (n < 0)

Note that in this context, ^ is the logical XOR operator (yes, I do mean "logical", distinct from "bitwise").

(m ^ n) < 0

Even more filler to make an appropriate length answer.

I'd go for:

(m < 0) != (n < 0)

!= operates the same as ^ for booleans, but I think it's easier to understand and more commonly used.

Basically your test should be - the sign bit (highest order) shound be different.

Here is the test expressed in java;

if ( (x & Integer.MIN_VALUE) != (y & Integer.MIN_VALUE) )
    ...