#154 ArrayLists vs Arrays

What is the key difference between arrays and ArrayLists when creating them?

• ArrayLists require specifying the data type

• Arrays require importing a package

• ArrayLists don't need to specify the size

• Arrays can only hold primitive data types

Which method is used to add elements to an ArrayList?

• push()

• insert()

• append()

• add()

What happens when you try to print an entire array directly?

• It prints all elements separated by commas

• It print all of the elements within brackets separated by spaces only

• It prints gibberish

• It throws an error

What is a key advantage of ArrayLists over arrays when adding new elements?

• ArrayLists are faster

• ArrayLists can automatically resize

• ArrayLists use less memory

• ArrayLists can hold more data types

Which real-world example does the video use to illustrate the usefulness of ArrayLists?

• Shopping lists

• Phone contacts

• YouTube subscriptions

• Book collections

 Which method is used to remove an element from an ArrayList?

• delete()

• remove()

• erase()

• pop()

What method is used to check if an ArrayList contains a specific element?

• has()

• includes()

• find()

• contains()