# 2010S2TestAnswers - THE UNIVERSITY OF AUCKLAND SECOND...

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THE UNIVERSITY OF AUCKLAND SECOND SEMESTER, 2010 Campus: City COMPUTER SCIENCE TEST SOLUTIONS Principles of Programming (Time Allowed: 75 minutes) NOTE: You must answer all questions in this test. No calculators are permitted Answer in the space provided in this booklet. There is space at the back for answers that overflow the allotted space. Surname Forenames Student ID Login (UPI) Lab Time Q1 (/16) Q4 (/8) Q7 (/10) Q2 (/15) Q5 (/10) Q8 (/20) Q3 (/12) Q6 (/9) Total /100

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Question/Answer Sheet - Page 2 - CompSci 101 SURNAME: . ..................................................... FORENAMES: . .......................................................... Question 1 (16 marks) a) What is the output produced by the following code? System.out.println(3 + 2 + " + " + 2 + " * " + 6 + (2 + 1)); 5 + 2 * 63 (2 marks) b) What is the output produced by the following code? System.out.println("A\"nB\nC\\nZ"); A"nB C\nZ (2 marks) c) Complete the output produced by the following code. int num = Math.max(Math.min(Math.max(3, 6), 5), 4); System.out.println("num: " + num); num: 5 (2 marks)
Question/Answer Sheet - Page 3 - CompSci 101 SURNAME: . ..................................................... FORENAMES: . .......................................................... d) What is the output produced by the following code? String a = new String("Hello World!"); String b = new String(“Hello World!”); System.out.println(a == b); false (2 marks) e) What is the output produced by the following code? int number = 56; if (number % 2 > 0) { System.out.println(“First”); } else { System.out.println(“Second”); } Second (2 marks)

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Question/Answer Sheet - Page 4 - CompSci 101 SURNAME: . ..................................................... FORENAMES: . .......................................................... f) What is the output produced by the following code? String a = "45"; int x = 1 + (Integer.parseInt(a) / 5 + 2) * 4 ; String b = "" + x; System.out.println(b.equals(a)); true (2 marks) g) Complete the Java statement which assigns a random number which is either 1, 2, 3, 4 or 5 to the int variable, number . int number = (int)(Math.random() * 5 + 1); (2 marks) h) Complete the output when the following code is executed. int a = 6; int b = a + 2; a = b + 2; int c = a; c = c / 5; a = c / 2; System.out.println("a: " + a + " b: " + b + " c: " + c); a: 1 b: 8 c: 2 (2 marks)
Question/Answer Sheet - Page 5 - CompSci 101 SURNAME: . ..................................................... FORENAMES: . .......................................................... Question 2 (15 marks) a) Complete the output produced by the following code. String phrase = "LITTLE STAR"; String part1 = phrase.substring(4, 6); String part2 = phrase.substring(9); String result = part1 + part2; System.out.println("Result: " + result); Result: LEAR (3 marks) b) Complete the output produced by the following code.

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2010S2TestAnswers - THE UNIVERSITY OF AUCKLAND SECOND...

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