DASC20010 Lecture 19: 19

25. Consider the Cocktail Sort (code 4) algorithm described in the appendix. What would happen if we removed the code on lines 16-19? (A) This would cause a run-time error. (B) This would cause a compile-time error. (C) This changes nothing - the code is useless. (D) This is a logical error (the array will not be sorted). (E) This would cause the algorithm to take more steps to complete.

19. How many times does the letter C print in the following code? for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { for (int k = 0; k < 2; k++) { System.out.println("C"); System.out.println("C"); System.out.println("C"); (D) 36 (E) 18

19. (2 points) Given the Rocket class from program 6 which includes instance variables xVel and yvel, write a method called safeLanding () that could be added to the Rocket class and returns true if the rocket made a safe landing and false otherwise. Assume the rocket has landed and you are only deciding if it was a safe landing or not. A safe landing is one in which both the x and y velocities are between -0.4 and 0.4. class Rocket { float xVel, yvel; // most of the class is omitted and not needed for this question // put your safeLanding method here