412: Highlights

• If you want to combine two predicate expressions, and the result is to be true if the values of both expressions are true, then use &&.
• If you want to combine two predicate expressions, and the result is to be true if the value of either expression is true, then use ||.
• Both && and || evaluate their left operand before they evaluate their right operand. The right operand is not evaluated if the value of the left operand of an && expression is false, or if the value of the left operand of a || expression is true.