When working with Java collections ( especially from the Java Collections Framework ), two commonly used classes are ArrayList and LinkedList . Both are part of the List interface , but they behave very differently internally. Let’s break it down in a simple way. What is an ArrayList? An ArrayList is like a dynamic array . Internally uses a resizable array Elements are stored in continuous memory locations Fast for accessing elements using index Example: ArrayList < String > list = new ArrayList <>(); list . add ( "Apple" ); list . add ( "Banana" ); System . out . println ( list . get ( 1 )); // Banana Enter fullscreen mode Exit fullscreen mode What is a LinkedList? A LinkedList is made up of nodes . Each element (node) contains: 1.Data 2.Reference to next node (and previous node in doubly linked list) Elements are not stored in continuous memory Example: LinkedList < String > list = new LinkedList <>(); list . add ( "Apple" ); list . add ( "Banana" ); System . out . println ( list .…