How to use List?

In Java, we must import java.util.List package in order to use List.

$\begin{lstlisting} // ArrayList implementation of List List<String> list1 = new ... ...implementation of List List<String> list2 = new LinkedList<>(); \end{lstlisting}$

Here, we have created objects list1 and list2 of classes ArrayList and LinkedList. These objects can use the functionalities of the List interface.