University:
California State University, Northridge
Course:
COMP 110 | Introduction to Algorithms and Programming and Lab
Academic year:

2023
Views:

204

Pages:

11
Author:

Samuel K

Quiz 1 Due Sep 08, 2023 at 11:45am Points 40 Questions 20 Time Limit 75 Minutes Question 1 2 pts How is an 'if' statement terminated in Java? Semicolon (:) Colon (:) Parenthesis) Curly brace] Question 2 2 pts What is the role of the 'this' keyword in Java? It refers to the next object in memory It refers to the current object It is used to create threads It represents a null value Question 3 2 pts What is the default value of an integer variable in Java? 0 01 0-1 Onull Question 4 2 pts How do you achieve multiple inheritance in Java? Using interfaces Using classes only Using abstract classes It is not possible Question 5 2 pts What is the main advantage of using polymorphism in Java? Code reusability Code readability •Memory optimization Error handling Question 6 2 pts How is an object's state defined in Java? By its methods By its instance variables By its constructors By its class name Question 7 2 pts What is the result of the expression: 5+3*2? 16 11 13 26 Question 8 2 pts What does the keyword 'public' indicate in a Java class? It can only be accessed within the same class It can be accessed by any class It is a data type It is a constructor Question 9 2 pts What is the primary purpose of a constructor in Java? To initialize class variables To define methods To create objects To handle exceptions Question 10 2 pts Which keyword is used to declare a variable in Java? int variable new declare Question 11 2 pts How do you create an object of a class in Java? object new class() class new object() new class(object) new object(class) Question 12 2 pts Which data type is used to store characters in Java? int char double boolean Question 13 2 pts What is the purpose of the 'super' keyword in Java? Refers to the previous object in memory Refers to the parent class Initiates a new thread Represents a null value Question 14 2 pts Which of the following is a reserved keyword in Java? var val const final Question 15 2 pts What is the purpose of the 'static' keyword in Java? It denotes a constant variable It is used to create static methods It represents a data type It is used for dynamic memory allocation Question 16 2 pts How is memory managed in Java? Automatic garbage collection Manual memory allocation Pointers and references Stack-based memory allocation Question 17 2 pts What is the purpose of the 'break' statement in Java? Exits the loop or switch statement Continues to the next iteration of the loop Jumps to a specific label Terminates the program Question 16 2 pts How is memory managed in Java? Automatic garbage collection Manual memory allocation Pointers and references Stack-based memory allocation Question 17 2 pts What is the purpose of the 'break' statement in Java? Exits the loop or switch statement Continues to the next iteration of the loop Jumps to a specific label Terminates the program Question 20 2 pts What is the syntax for creating a constant variable in Java? final int x = 10; const int x = 10; var x = 10; static final int x = 10;