APCS unit 9

APCS unit 9

11th Grade

15 Qs

quiz-placeholder

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APCS unit 9

APCS unit 9

Assessment

Quiz

Computers

11th Grade

Practice Problem

Medium

Created by

Scurvy Pancakes

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is inheritance in Java?

A way to grant permissions to files

A technique to secure web applications

A process where new classes are derived from existing classes

A method to increase the efficiency of database access

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does polymorphism allow in Java?

Creating multiple variables of the same name within the same scope

Connecting to different databases using the same interface

Encrypting data to enhance security

Changing the behavior of an application based on the type of object

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of constructors in Java?

To encrypt user data for security

To terminate applications cleanly

To initialize new objects

To create a new thread for multitasking

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many superclasses can a Java class have?

None

As many as needed

Two

One

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What modifier makes a member of a class not inheritable?

static

protected

private

public

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What keyword is used to inherit a class in Java?

uses

inherits

extends

implements

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What can be done with static methods in terms of inheritance?

They can be overridden

They can be hidden

They can be overloaded

They cannot be used

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