Name CSE 1223 Exam II Autumn 2016 Instructions Do not open the exam before you are told to begin This exam is closed book closed notes You may not use any calculators or any other kind of computing device on this exam Direct all questions to the instructor and no one else You have 55 minutes to complete this exam When time is called you must lay down your pencil and submit the exam There are three parts to this exam containing questions worth a total of 100 points Not all questions are worth the same number of points You should scan the exam before starting The space allotted for each questions should provide more than sufficient space to answer the question If you find you are running out of space you are probably on the wrong track Part Score I 40 II 34 III 26 TOTAL 100 In accordance with The Ohio State University Code of Student Conduct I certify that I have received no aid on this exam from any other person I have not given anyone aid on this exam I shall NOT discuss the contents of this exam with anyone who has not already taken this exam Signed Part I Coding 40 points 1 10 points Complete the skeleton below for the method named longest that takes an array of Strings as input and returns the longest String in the array to the calling program For example if the array has the values The Brown Fox then the method will return the value Brown In the case of ties your code can return ANY String with the longest length For example if the array has the values The Quick Brown Fox you may return either Brown or Quick You may assume that the arrays passed to the method will have a length of at least 1 private static String longest String array your code goes here CSE 1223 EXAM II Page 2 of 13 2 15 points Fill in the skeleton below for a program that prompts the user for an integer The program should then display a triangle of the numbers as shown below The program should continue prompting for input until the user enters a negative number The program should end with a Goodbye message See below for an example of the program in action Make sure your code produces the same output as that given in the transcript below Please note that a correct solution to this problem will NOT make use of any arrays See the last page of the exam for some Scanner methods you might find useful Here is a sample transcript of how the program should work Input typed by the user is indicated by bold text Enter an integer 3 3 33 333 Enter an integer 2 2 22 Enter an integer 1 Goodbye import java util Scanner public class Exam2B public static void main String args Scanner in new Scanner System in your code goes here CSE 1223 EXAM II Page 3 of 13 3 15 points Fill in the skeleton below for a method named zeroOdds that takes an array of integers as a parameter The method should return a new array that has only the even values of the original array with the odd values replaced by zeroes For example if the array arr1 2 7 1 8 5 then the call zeroOdds arr1 should return the array 2 0 0 8 0 Note that your code should work for arrays of length zero and that a zero length array with the odds zeroed out is another zero length array private static int zeroOdds int array CSE 1223 EXAM II Page 4 of 13 Part II Multiple Choice 34 points For each of the following questions circle the single answer that BEST answers the question 2 points each 1 Consider the method header public static String foo int i Which of the following could be a correct method call Note in all of the examples below i is of type int and s is of type String a String foo int i b String foo i c s foo i d foo String s 2 For the loop given below what is the final value of i when the loop is finished int i 1 int arr 2 3 5 while i arr length i i 1 a 1 b 2 c 3 d 4 e You cannot tell just from the code segment provided f The loop will never exit it is an infinite loop 3 Suppose you have a problem where you are trying to find the larger of two numbers Which ONE of the following Java programming concepts would be the best fit to use to solve this problem a while loop b if else c String length d None of the above in the space below explain how you can choose the larger of two values without using any of the above concepts CSE 1223 EXAM II Page 5 of 13 4 A Java program that is supposed to compute the average of an array of numbers tries to access a number at an index larger than the length of the array This is an example of what kind of error a Runtime error b Syntax error c Array Too Small error d None of the above 5 What value does the variable msg have at the end of this segment of code int value 31 String msg if value 50 msg Under 50 else if value 30 msg Over 30 if value 25 msg Under 25 a b c d e Under 25 Over 30 Under 50 You cannot tell from the code provided 6 For the loop given below how many times will the boolean expression i 2 be evaluated int i 0 while i 2 i i 1 a 0 b 1 c 2 d 3 e 4 f The loop will never exit it is an infinite loop 7 If you declare an array as char cs 4 3 2 1 then the array element cs 3 contains what value CSE 1223 EXAM II Page 6 of 13 a b c d e 1 2 3 4 It is impossible to tell 8 What will be printed by the println statement at the end of this code segment int i 2 while i 3 String msg Value i i i 1 System out println msg a Value 0 b Value 1 c Value 2 d Value 3 e None of the above the above segment has an error in it In the space below give a brief explanation of what the error is Each of the following questions may have multiple answers Circle ALL responses that are answers to these questions 3 points each 9 The method declared with the header public static double oneThirdOf int i returns a An integer value b A double value c The value of the parameter i divided by 3 d No value e You cannot tell from the information provided 10 If x y and z are boolean variables for what values of x y and z does the expression …