AP COMP SCI A: CodeHS Units 6/7/8 VOCAB
Quiz
•
Information Technology (IT)
•
12th Grade
•
Practice Problem
•
Easy
Kelsey Borys
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26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What is an Array in Java?
A data structure that can hold multiple values of the same type.
A method to store key-value pairs.
A function to iterate over a collection.
A class to create objects.
2.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What is an Index in the context of Java Arrays?
A unique identifier for each element in the array
The size of the array
The data type of the array
The memory address of the array
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What does array.length return in Java?
The number of elements in the array
The size of the array in bytes
The last index of the array
The memory address of the array
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
The purpose of array[index] in Java is to:
Access the element at the specified index
Change the size of the array
Sort the array
Delete the element at the specified index
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What are ArrayLists in Java?
A type of array that can grow in size
A fixed-size array
A type of linked list
A type of stack
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What are ArrayList Methods used for in Java?
To store elements in a dynamic array
To perform mathematical calculations
To handle file input/output operations
To manage network connections
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What is an Enhanced For Loop in Java?
A loop that iterates over a range of numbers
A loop that iterates over elements of an array or collection
A loop that runs indefinitely
A loop that executes a specific number of times
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