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23 Aug 2018

21. What prints in the following question. int[] [] x = { { 1, 2, 3} , {4, 5}, {6, 7}}; x[0] = new int [4]; System.out.println(x.length); (A) 3 (B) 8 (C) 7 (D) There is a compiler error. (E) 2

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Keith Leannon
Keith LeannonLv2
26 Aug 2018
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COMP 2021Winter 2010 - Final Examination Pape 11 110 6 . The two classes low compile without me. What is displayed when the main() method of class Nightmareix is executed? Clearly indicate the program output in the appropriate space ca pe You may use the other lank space as a scratch pad to track the state of memesy as the program escoles, but the contents of this other space will not he graded The definition of the Pair claw public cla Pair private int left: private int right publie Pairintit T left- right - public void nix (Pair pl loft - P.left public string toitring) return "IL... lort R right "1" The definition of the NightmareMix class public class Nightmareix public static void mix Inta (int il, int 12) public static void mixArraywithint fint 11 a, int i, int v) 11 - V public static void mixArrayaor Int(int il al, intl a2) public static void mixMatrixWithint fint 11111121 - m int 11, int 12, int v public static void mixMatrix WithArray (int 11 11- , int i, intila) public static void mixlar Addresses Pair pl, Pair 2) pl - p2 public static void mixArrayWithPairState (Pair) a, int i, Pair pl public static void mixArrayWithPairAddress (Pairla, int i, Pair p) ali - P; public static void mixArrayaoraira (Pairil al, Pairil a2) public static void main(Stringil arga) int myV1 - 1; int myV2 - 2; int my = (3, 4) int my2 = 5, 6) into myM1 , 8 9, 10}} Pair myP1 = new Pair (11, 12) Pair myP2 = new Pair (13, 14) Pair myPA (neu Pair (15, 16), new pair(17, 18) Pair myPA2 = (neu Pair (19, 20), new pair (21, 22) mixInita (myvi, myV2); mixArrayWith Int (myal, 0, myv2); mixArraysOfIntinyal, myA2); MixMatrixWithint (myM, 0, 0, myV2); mixArrayaofTnt (HyMIO, myM[1); mixMatrixWithArray (wy, , WyA2); mixArraywithint nyA2, 0, myV2); mixPair Addresses (wypi, myP2); RixPairAddren (HyPALIO), WPAI[1]); mixArraywithPairstate (myPA2, 0, 1); mixArraywithPairAddresa (myPA2, 1, WP2); mixArray Paira (wyPal, myPAZ) System.out.println("1.. myvi) System.out.println("2: ( +WA110 A11] + " ") System.out.println("3: ( + myA2[0] + + m 2 (1) + " ); System.out.println("4: ( myM[0][0] + "," myM[0][1] + " myM[1][0] + " " + myM[1][1] + "} ") System.out.println('5: ( + myPA10) + myPA [1] + " "); System.out.println("6: ( myPA2[0 PA21] + " ); 1"

20. How many times does the letter D print in the following code? for (int i = 0; i < 3; i++) { for (int j = i+1; j < 3; j++) System.out.println("D"); { (A) 3 (B) 0 (C) 6 (D) 1 (E) 2

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