ArrayList basics

[meager idol]

Instead of "Book" here should'nt it say "String"?

[viscid umbra]

<@&987246399047479336> please have a look, thanks.

[quartz vault]

List of Book objects. Where's the Book.java file.

[meager idol]

this is book class

ArrayList<String> books;

i still dont understand

[quartz vault]

Library holds Books, not strings.

Was there an assignment you're trying to do?

The Book class doesn't actually use ArrayList so that import is doing nothing.

[bold cedar]

You should use the interface on the left hand side, not the implementation.
What's between <> indicates what can be stored in the list.

[zinc mountain]

ArrayList is a parameterized type. Meaning the object/class will use whatever is inside <> in some way. In the case of arraylist it means that the arraylist is a list of Book objects. Does it make sense?

[vivid gull]

yes

[wheat dew]

J