Exclusive OR Java code

Question

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Creating a “logical exclusive or” operator in Java

I'm struggling with trying to write Java code for an exclusive or operator.

I have 1 method called leftTurn()

leftTurn(a,b,c) XOR leftTurn(a,b,d)

&

leftTurn(c,d,a) XOR leftTurn(c,d,b)

I dont know how to construct Java code for this.

See http://stackoverflow.com/questions/726652/creating-a-logical-exclusive-or-operator-in-java — Robin, Dec 05 '11 at 11:16

score 5 · Answer 1 · answered Dec 05 '11 at 11:16

5

The Java XOR operator is ^.

So:

leftTurn(a,b,c) ^ leftTurn(a,b,d)

answered Dec 05 '11 at 11:16

score 2 · Answer 2 · answered Dec 05 '11 at 11:17

2

Assuming leftTurn return int

leftTurn(a,b,c) ^ leftTurn(a,b,d) 
leftTurn(c,d,a) ^ leftTurn(c,d,b)

answered Dec 05 '11 at 11:17

score 2 · Answer 3 · answered Dec 05 '11 at 11:35

2

If ^ is a bit obscure for you, you can just use != which does the same thing for booleans.

boolean oneTurn = leftTurn(a,b,c) != leftTurn(a,b,d);

If you need bitwise XOR, you need ^

answered Dec 05 '11 at 11:35

Peter Lawrey

3 Answers3