In Java XOR with three true inputs returns true. Why?

Question

The following code

System.out.println(\"1 0 0: \" + (true ^ false ^ false));
System.out.println(\"1 0 1: \" + (true ^ false ^ true));
System.out.println(\"1 1 0:         


        

Answer 1

Here's a Java 8 way of determining if exactly one boolean is true:

Stream.of(b1, b2, b3, ...)
        .filter(b -> b)
        .count() == 1;