How can I return the difference between two lists?

Question

I have two array lists e.g.

List a;
contains : 10/10/2014, 10/11/2016

List b;
contains : 10/10/2016

How can i do

Answer 1

You can use filter in the Java 8 Stream library

List aList = List.of("l","e","t","'","s");
List bList = List.of("g","o","e","s","t");

List difference = aList.stream()
    .filter(aObject -> {
        return ! bList.contains(aObject);
      })
    .collect(Collectors.toList());

//more reduced: no curly braces, no return
List difference2 = aList.stream()
    .filter(aObject -> ! bList.contains(aObject))
    .collect(Collectors.toList());

Result of System.out.println(difference);:

[e, t, s]