Collections

Question 1

Advantages of Arrays

Answer 1

Efficient
Quick to access
Easy to add to
Type-safe (can only add variables of the same type)

Question 2

Disadvantages of Arrays

Answer 2

Fixed Size

Limited functionality

Question 3

Java Collections

Answer 3

Java collections API provide developers with a set of classes and interfaces that make it easier to handle collections of objects.

Question 4

Advantages or Java Collections:

Answer 4

Flexible

Can hold any type of object

Question 5

Disadvantages of Java Collections:

Answer 5

Not as accessible

Question 6

List

Answer 6

An ordered collection permitting duplicates

Question 7

Set

Answer 7

A collection that contains no duplicates

Question 8

Maps

Answer 8

Describes a mapping from keys to values without duplicate keys.