Core Java Programming Course- Array List

This video tutorial explains the concept of ArrayList in Java, highlighting its advantages over traditional arrays, such as dynamic sizing and additional methods for element manipulation. It covers how to declare, create, and manipulate ArrayLists, including adding, retrieving, updating, and removing elements. The tutorial also discusses searching for elements, creating sublists, and iterating over ArrayLists, providing a comprehensive understanding of this Java collection framework.

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.

How do you specify the data type of elements in an ArrayList?

• Using parentheses.

• Using curly braces.

• Using angular brackets.

• Using square brackets.

Which method is used to add elements to an ArrayList?

• add()

• push()

• append()

• insert()

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.

What method would you use to update an element at a specific index in an ArrayList?

• set()

• change()

• update()

• modify()

Which method allows you to remove an element from an ArrayList by its index?

• delete()

• remove()

• discard()

• erase()

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.

What method would you use to get a sublist from an ArrayList?

• subList()

• slice()

• segment()

• partition()

Which method can be used to determine the number of elements in an ArrayList?

• length()

• total()

• size()

• count()

What is a common way to iterate over elements in an ArrayList?

• Using a while loop.

• Using a for-each loop.

• Using a do-while loop.

• Using a switch statement.