How to implement guide with concurrentmodificationexception in java 11 with arraylist while using streams
I've looked through the documentation and I'm still confused about Hey everyone, I'm running into an issue that's driving me crazy. I'm working with a `ConcurrentModificationException` when attempting to filter items from an `ArrayList` using Java Streams in my application. The specific block of code I'm using looks like this: ```java import java.util.ArrayList; import java.util.List; import java.util.stream.Collectors; public class Example { public static void main(String[] args) { List<String> items = new ArrayList<>(); items.add("apple"); items.add("banana"); items.add("cherry"); // Attempting to remove items while using streams items.stream().filter(item -> { if (item.equals("banana")) { items.remove(item); // This line causes the exception } return true; }).collect(Collectors.toList()); } } ``` When I run the above code, I get the following behavior: ``` Exception in thread "main" java.util.ConcurrentModificationException at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043) at java.base/java.util.ArrayList$Itr.next(ArrayList.java:897) at java.base/java.util.stream.Streams$StreamBuilderImpl.lambda$build$0(Streams.java:301) ... ``` I understand that `ConcurrentModificationException` is thrown when a collection is modified while it is being iterated. I tried to modify the list using an `Iterator`, but that approach does not seem to fit well with the stream operations. Is there a better way to accomplish what I want? I would prefer to remove items without causing this exception, ideally maintaining the functional style of using streams. Any insights or best practices for handling this scenario would be greatly appreciated! My development environment is Ubuntu. Am I missing something obvious? My development environment is Ubuntu.