Java 8 lambda get and remove element from list

Question

Given a list of elements, I want to get the element with a given property and remove it from the list. The best solution I found is:

Produce         


        

Answer 1

The below logic is the solution without modifying the original list

List str1 = new ArrayList();
str1.add("A");
str1.add("B");
str1.add("C");
str1.add("D");

List str2 = new ArrayList();
str2.add("D");
str2.add("E");

List str3 = str1.stream()
                        .filter(item -> !str2.contains(item))
                        .collect(Collectors.toList());

str1 // ["A", "B", "C", "D"]
str2 // ["D", "E"]
str3 // ["A", "B", "C"]