Understanding Arrays in Java

Understanding Arrays in Java

9th - 12th Grade

14 Qs

quiz-placeholder

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Understanding Arrays in Java

Understanding Arrays in Java

Assessment

Interactive Video

Computers

9th - 12th Grade

Practice Problem

Medium

Created by

Emalie Eaton

Used 3+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of iterating over an array?

To access each element sequentially

To shuffle the array elements

To modify the array's size

To delete elements from the array

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you access the ith element of an array named 'scores'?

scores(i)

scores.i

scores[i]

scores->i

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is required to sum all elements in an array?

A for loop and a sum variable

A while loop only

A do-while loop and a sum variable

No loop is required

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct way to declare an array in Java?

int array scores = {1, 2, 3};

int scores[] = {1, 2, 3};

array scores = {1, 2, 3};

int[] scores = new int[]{1, 2, 3};

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the 'length' property of an array?

To resize the array

To determine the number of elements in the array

To find the last element of the array

To check if the array is empty

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does it mean to 'iterate' over an array?

To reverse the array

To sort the array

To go through each element of the array sequentially

To randomly access elements in the array

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can arrays be used in Java classes?

As instance variables or method parameters/return types

As methods only

Arrays cannot be used in classes

As local variables only

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