
Understanding Arrays in Java
Interactive Video
•
Computers
•
9th - 12th Grade
•
Practice Problem
•
Medium
Emalie Eaton
Used 3+ times
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14 questions
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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
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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