CS1102 AY2021 Final Exam (Day1-4) Review Quiz PDF

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CS 1102 - AY2021 Final Exam (Days 1 - 4) Review QuizQuestion 1Which of the following can a class NOT be used for? Select one: a. a container for static methods (subroutines) b. a container for static variables c. a primitive type d. a type for method parameters e. a type for variablesYour answer is ...

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CS 1102 - AY2021 Final Exam (Days 1 - 4) Review Quiz

Question 1

Which of the following can a class NOT be used for?

Select one:

a. a container for static methods (subroutines)

b. a container for static variables

c. a primitive type

d. a type for method parameters

e. a type for variables

Your answer is correct.

Primitive types are not classes. See Section 2.3 of Eck (2014).

The correct answer is: a primitive type

Question 2

Consider the following first line from a Java method definition.

public static boolean compute(int n, float x) {

Which one of the following lines could begin a method that legally overloads the above method?

Select one:

a. private static boolean compute(int n, float x) {

b. public boolean compute(int n, float x) {

c. public static int compute(int n, float x) {

d. public static boolean compute(float n, int x) {

e. public static boolean compute(int x, float n) {

Your answer is correct.

To overload a method, a method must have the same name but different parameter types (or a different number of parameters). See Section 4.3.3 of Eck (2014).

The correct answer is: public static boolean compute(float n, int x) {

Question 3

What is the output of the following Java program?

import java.util.*;

class ArrayGames {

public static void main(String[] args) {

ArrayList a = new ArrayList();

for (int i = 1; i...