Java Arrays Quiz

Java Arrays Quiz

12th Grade

15 Qs

quiz-placeholder

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Java Arrays Quiz

Java Arrays Quiz

Assessment

Quiz

Information Technology (IT)

12th Grade

Practice Problem

Hard

Created by

Harwin Mendoza

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an array in Java?

A collection of elements of different types

A collection of elements of the same type

A class in Java

None of the above

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are arrays declared in Java?

int arr = new int[5];

int[] arr = new int[5];

int arr = {1, 2, 3};

array int[5] arr;

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will happen if you access an array index out of bounds?

Compilation error

Returns -1

Runtime exception

Undefined behavior

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you get the length of an array in Java?

arr.size()

arr.length

arr.length()

arr.getLength()

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following initializes an array correctly?

int[] arr = new int[5]{1, 2, 3, 4, 5};

int arr = {1, 2, 3, 4, 5};

int arr[] = {1, 2, 3, 4, 5};

int arr(5) = {1, 2, 3, 4, 5};

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Can an array size be changed after declaration in Java?

Yes

No

Only for primitive types

Only for object types

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you declare a multidimensional array in Java?

int[][] arr = new int[3][3];

int arr[][] = {1, 2, 3, 4};

int[] arr = new int[3][3];

array[][]int arr;

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