Features of "Java" XOR "^"

1, what is XOR or

XOR is a logical operator, using the symbol "^" to indicate that XOR is in the process of binary operation, the same takes 0, different fetch 1.

2, prove a==a^b^b;

For this conclusion the reader must be aware that the results of B^b are certainly all 0, and then any number and 0 are different or will not change. So the A==A^B^B was established.

3, intermodulation two numbers using XOR features

If you need to adjust the number A and B, then you can:

int temp=a;a=b;b=temp;

You can also use XOR:

a=a^b;b=a^b;a=a^b;

Features of "Java" XOR "^"