How can I return the difference between two lists?

by

You can convert them to Set collections, and perform a set difference operation on them.

Like this:

Set<Date> ad = new HashSet<Date>(a);
Set<Date> bd = new HashSet<Date>(b);
ad.removeAll(bd);

More Related Contents:

  1. Java Questions! About List and Objects
  2. Finding out if a list of Objects contains something with a specified field value?
  3. How do i get an object from another class in java
  4. .contains() on a list of objects [closed]
  5. get specific data filed from returned object in java
  6. How do I correctly implement this code segment without getting a logic error? [closed]
  7. What is the difference between a variable, object, and reference? [duplicate]
  8. How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterating it? [duplicate]
  9. Can we instantiate an abstract class?
  10. Is there a way to instantiate a class by name in Java?
  11. Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [duplicate]
  12. Remove duplicates from a list of objects based on property in Java 8 [duplicate]
  13. How to compare two java objects [duplicate]
  14. Java 8 stream reverse order
  15. Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
  16. How to copy Java Collections list
  17. Efficient intersection of two List in Java?
  18. Iteratively compute the Cartesian product of an arbitrary number of sets
  19. How to sort a List alphabetically using Object name field
  20. Java rules for casting
  21. Sort List in reverse in order
  22. What is a List vs. an ArrayList? [duplicate]
  23. Fastest Gaussian blur implementation
  24. Difference Between Object Type and Reference Type
  25. What does the ‘new’ keyword actually do in Java, and should I avoid creating new objects?
  26. Why didn’t Stream have a toList() method?
  27. Steps in the memory allocation process for Java objects
  28. Is it possible see all the references to an object in execution time?
  29. Performance and Memory allocation comparison between List and Set
  30. Converting an int array to a String array

Leave a Comment