List versus ArrayList as reference type?

by

If you use the first form, you are saying all you are ever going to use is the functionality of the List interface – nothing else, especially nothing extra added by any implementation of it. This means you can easily change the implementation used (e.g. just substitute LinkedList for ArrayList in the instantiation), and not worry about it breaking the rest of the code because you might have used something specific to ArrayList.

More Related Contents:

  1. How to arrange the datas to display in array by given string of days in java?
  2. How to create a Java ArrayList in C
  3. ArrayList, Loop and requisite if can not work that i want – Java 11
  4. Why does my ArrayList contain N copies of the last item added to the list?
  5. How do I remove repeated elements from ArrayList?
  6. Type List vs type ArrayList in Java [duplicate]
  7. How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterating it? [duplicate]
  8. Why do I get an UnsupportedOperationException when trying to remove an element from a List?
  9. How to sort a List/ArrayList?
  10. Convert list to array in Java [duplicate]
  11. Java List.add() UnsupportedOperationException
  12. In Java how do you sort one list based on another?
  13. Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [duplicate]
  14. How to randomize two ArrayLists in the same fashion?
  15. What is the difference between List and ArrayList? [duplicate]
  16. Modifier static is only allowed in constant variable declarations
  17. Simple way to compare 2 ArrayLists
  18. What is a List vs. an ArrayList? [duplicate]
  19. Removing Duplicate Values from ArrayList
  20. Why can’t you have a “List” in Java? [duplicate]
  21. ArrayList vs LinkedList from memory allocation perspective
  22. Finding out if a list of Objects contains something with a specified field value?
  23. new ArrayList() failing in Java
  24. How to remove common values from two array lists
  25. How to check two array list are same content in same position
  26. Why should the interface for a Java class be preferred?
  27. How to create interface between Fragment and adapter?
  28. How to make a new List in Java
  29. Optional Methods in Java Interface
  30. Arrays.asList(int[]) not working [duplicate]

Leave a Comment