Sybex CSG 17 - Error in the Appendix (Chapter 2: Operators, Answer #13)

[Peter Prazenica]

The Appendix (Chapter 2: Operators, Answer #13) says:

"The first expression is evaluated from left to right since the operator precedence of & and ^ is the same, letting us reduce it to false ^ sunday, which is true, because sunday is true."

However, the & operator has higher precedence than the ^ operator and not the same one. That's why the statement

"boolean goingToTheStore = sunny & raining ^ sunday;"

evaluates "sunny & raining" first andit can be reduced to false ^ sunday.

Evidence:
System.out.println(true ^ true & false); // true
System.out.println((true ^ true) & false); // false
If the operators & and ^ have the same precedence and the statement "true ^ true & false" is evaluated from left to right, the result would be false and not true.

Am I right?
Peter Prazenica

[Stephan van Hulst]

Correct, & has higher precedence than ^.

[Jeanne Boyarsky]

Confirmed and added to the erratas crediting you. Good find. This was also wrong in our Java 11 books. Have a cow for finding an errata none of our Java 11 readers caught either!

Table 2.1 on page 68 correctly lists them as differing levels of precedence.