Core Java Programming Course- Array List
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one of the main advantages of using an ArrayList over a traditional array in Java?
ArrayLists are faster than arrays.
ArrayLists can hold multiple data types.
ArrayLists have a fixed size.
ArrayLists can dynamically change size.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you specify the data type of elements in an ArrayList?
Using parentheses.
Using curly braces.
Using angular brackets.
Using square brackets.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to add elements to an ArrayList?
add()
push()
append()
insert()
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you retrieve an element from an ArrayList at a specific index?
Using the find() method.
Using the get() method.
Using the fetch() method.
Using the retrieve() method.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method would you use to update an element at a specific index in an ArrayList?
set()
change()
update()
modify()
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method allows you to remove an element from an ArrayList by its index?
delete()
remove()
discard()
erase()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you check if a specific element exists in an ArrayList?
Using the search() method.
Using the contains() method.
Using the find() method.
Using the exists() method.
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