Java
Wrapper classes, generics, and other advanced language features layered on the core syntax.
Wrapper classes provide a way to use primitive data types ( int , boolean , etc..) as objects.
Generics allow you to write classes, interfaces, and methods that work with different data types, without having to specify the exact type in advance.
Annotations are special notes you add to your Java code. They start with the
A regular expression is a sequence of characters that forms a search pattern. When you search for data in a text, you can use this search pattern to describe what you are searching for.
Threads allows a program to operate more efficiently by doing multiple things at the same time.
Lambda Expressions were added in Java 8.
In the List Sorting Chapter , you learned how to sort lists alphabetically and numerically, but what if the list has objects in it?