Programming 2 - Arrays

Which of the following is NOT an advantage of an array?

• Each value in the array is identified by a unique variable.
• Any item in an array can be efficiently obtained by its index.
• It is easy to iterate over the items in an array.
• Data is stored in an organized way.

_________________ is a collection of elements used to store the same type of data.

• Array
• Switch
• Case
• Loop

________________________ are used to create a multi dimensional array.

• Single round brackets
• Single square brackets
• Multiple squares brackets
• Single angled brackets

___________ is an array that can increase in size during program execution.

• Single-dimensional array
• Two-dimensional array
• Multi-dimensional array
• Dynamic array

How can you fetch data from the array?

• using index
• using value
• using arrayname
• using operator

How will you identify a single array?

• single curly brackets
• single square brackets
• multiple squares brackets
• single angled brackets

java.util.ArrayList is a_________.

• method
• class
• package
• object

Which is the correct way to create a new Arraylist?

• ArrayList ArrayListName = new ArrayList ();
• ArrayList ArrayListName = ArrayList ();
• ArrayList ArrayListName = new Array ();
• ArrayList ArrayListName = Array ();

The _____ method makes a copy of an existing Arraylist.

• add
• copy
• clone
• size

Which method do you use to find how many items are in an arraylist?

• remove()
• count()
• size()
• add()