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

Java Tutorial
1. Language
2. Data Type
3. Operators
4. Statement Control
5. Class Definition
6. Development
7. Reflection
8. Regular Expressions
9. Collections
10. Thread
11. File
12. Generics
13. I18N
14. Swing
15. Swing Event
16. 2D Graphics
17. SWT
18. SWT 2D Graphics
19. Network
20. Database
21. Hibernate
22. JPA
23. JSP
24. JSTL
25. Servlet
26. Web Services SOA
27. EJB3
28. Spring
29. PDF
30. Email
31. J2ME
32. J2EE Application
33. XML
34. Design Pattern
35. Log
36. Security
37. Apache Common
38. Ant
39. JUnit
Java
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Tutorial » Collections » Iterator 
9. 37. 6. 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)

*/
9. 37. Iterator
9. 37. 1. Use Iterator to loop through ArrayList
9. 37. 2. Use Iterator to loop through the HashMap class
9. 37. 3. Iterate through a Collection using Java Iterator
9. 37. 4. Traverse through ArrayList in forward direction using Java ListIterator
9. 37. 5. Traverse through ArrayList in reverse direction using Java ListIterator
9. 37. 6. Iterate a Collection and remove an item (Exception, wrong version)
9. 37. 7. Remove an element from Collection using Java Iterator
9. 37. 8. Iterator from LinkedList
9. 37. 9. Iterate through elements of Java LinkedList using Iterator
9. 37. 10. An Iterator that wraps a number of Iterators
9. 37. 11. Array Iterator
9. 37. 12. Create singleton Iterator
9. 37. 13. Cyclic Iteration
9. 37. 14. Iterator Union of Iterators
9. 37. 15. Iterator Utils
9. 37. 16. Iterator class for sparse values in an array.
9. 37. 17. Iterator class for values contained in an array range.
9. 37. 18. Sorted Iterator
9. 37. 19. Treat an Iterator as an Iterable
9. 37. 20. An Iterator that returns the elements of a specified array, or other iterators etc.
9. 37. 21. An Iterator wrapper for an Enumeration.
9. 37. 22. An Iterator wrapper for an Object[], allow us to deal with all array like structures in a consistent manner.
9. 37. 23. An iterator that breaks text into lines. The result is equal to BufferedReader.readLine().
9. 37. 24. Gets the child of the specified element having the specified unique name
9. 37. 25. Implements an java.util.Iterator over any array
9. 37. 26. Protects an given iterator by preventing calls to remove().
9. 37. 27. Returns an iterator over the children of the given element with the given tag name
9. 37. 28. Use an Iterator to cycle through a collection in the forward direction.
9. 37. 29. This constructs an Iterator over each day in a date range defined by a focus date and range style.
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.