IT 114: Introduction to Java - Answers to Class 24 Ungraded Quiz

IT 114: Introduction to Java
Answers to Class 24 Ungraded Quiz

What is the class that can create objects that work like arrays but can be expanded or contracted as needed?
```
ArrayList
```
Write the statement to create an ArrayList object named "words" that will hold strings.
```
ArrayList<String> words = new ArrayList<>();
```
Can you create an ArrayList object to hold values of type int?
```
no
```
What method would you use to determine how many elements are in an ArrayList object?
```
size
```
What method would you use to obtain insert a value into an ArrayList object?
```
add
```
What method would you use to obtain the value of a particular element in an ArrayList object?
```
get
```