Iterate a Collection and remove an item (Exception, wrong version) : Iterator « Collections Data Structure « Java

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Java » Collections Data Structure » Iterator Screenshots  Iterate a Collection and remove an item (Exception, wrong version)       import java.util.ArrayList; import java.util.List; public class Main {   public static void main(String args[]) {     List<String> list = new ArrayList<String>();     list.add("A");     list.add("B");     list.add("C");     list.add("C");     list.add("C");     list.add("C");     list.add("C");          for (String s : list) {       if (s.equals("B")) {         list.remove("B");       }       System.out.println(s);     }   } } /*A B Exception in thread "main" java.util.ConcurrentModificationException   at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)   at java.util.AbstractList$Itr.next(AbstractList.java:343)   at Main.main(Main.java:17) */                            Related examples in the same category 1. Listing the Elements of a Collection 2. De-mystify the Iterator interface, showing how to write a simple Iterator for an Array of Objects 3. Iterate over Set 4. Demonstrate iterators. 5. Use the for-each for loop to cycle through a collection. 6. List Iterator 7. Use an Iterator and remove the item with Iterator.remove() 8. An Iterator wrapper for an Enumeration. 9. EmptyIterator is an iterator which is empty. 10. Implements an java.util.Iterator over any array 11. Treat an Iterator as an Iterable 12. Iterator class for sparse values in an array. 13. Iterator class for values contained in an array range. 14. Array Iterator 15. Cyclic Iteration 16. Create singleton Iterator 17. Empty Iterator 18. An Iterator that wraps a number of Iterators 19. An Iterator to iterate over the elements of an array 20. Sorted Iterator 21. Iterator Union of Iterators 22. Iterator Utils 23. Linked Iterator 24. Prefetch Iterator 25. Protects an given iterator by preventing calls to remove(). 26. An Iterator that returns the elements of a specified array, or other iterators etc. 27. An Iterator wrapper for an Object[], allow us to deal with all array like structures in a consistent manner. 28. An array iterator 29. Adapt iterator to iterable 30. Static utility methods, classes, and abstract classes for iteration. 31. Iterator Collection 32. Convert Iterable to List 33. A singleton null object Iterator implementation.