References API: Java Collections Framework tutorial class ArrayList<E> implements List<E> interface List<E> E get(int index) Returns the element at the specified position in this list. Don't use raw types …

import java.util.ArrayList; import java.util.List; Here is an explanation of what packages are and how the import statement works.

Mar 4, 2015 · The ArrayList returned by Arrays.asList() method is NOT java.util.ArrayList it is a static inner class inside Arrays class. So, you can't cast it to java.util.ArrayList.

Oct 24, 2019 · com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.util.ArrayList` out of START_OBJECT token Asked 6 years, 1 month ago Modified 6 …

The problem occurs at Element element = it.next(); And this code which contains that line, is inside of an OnTouchEvent for (Iterator&lt;Element&gt; it = mElements.iterator(); it.hasNext();){

Aug 14, 2013 · The iterators returned by this ArrayList's iterator and listIterator methods are fail-fast: if the list is structurally modified at any time after the iterator is created, in any way except through the …

Nov 19, 2013 · 26 You need to use the get() method to get the element at a particular index from an ArrayList. You can't use [] to get the element at a particular index, in an arraylist. Its possible only for …

Going further into the Java API source code HashMap#values (): Check the return type in the source, and ask yourself, can a java.util.Collection be casted into java.util.ArrayList?

Dec 30, 2013 · Can not deserialize instance of java.util.ArrayList out of START_OBJECT token Asked 11 years, 11 months ago Modified 8 months ago Viewed 678k times

Can not deserialize instance of java.util.ArrayList out of VALUE_STRING Asked 12 years, 10 months ago Modified 5 years, 3 months ago Viewed 277k times