WR 474 Lecture 4: Precipitation

12. What will the following print ? public class Test public static void main (String[] args) boolean bl = true; boolean b2 = false; boolean b3 = true; if ((bl && b2) || (b2 && b3) || b2) System.out.print("ok"); if ((bl && b2) || (b2 && b3) 11 (bl || b2)) System.out.println("dokey"); (A) No output is produced (B) ok (C) dokey (D) Compile-time error (E) ok dokey

45. What is the value of the following boolean expression? true && (false || !false) && (true || false) (A) TRUE (B) FALSE

13. Given the following boolean expression: (!a && b) == ! (a || b) And given the following value combinations for a and b: II. a = true, b = true a = true, b = false a = false, b = true a = false, b = false IV. For which of the combinations does the above boolean expression evaluate to true? (A) II and III. (B) I, II, and IV. (C) I and II. (D) II and IV. (E) I and III.