I m new to Java Collections and my doubt is why can't i traverse a element in linkedlist in backward directions.Below I'll explain what i did and please clarify my doubts. I've created interface ...

Iterator ite = Set.iterator(); Iterator ite = List.iterator(); ListIterator listite = List.listIterator(); We can use Iterator to traverse a Set or a List or a Map. But ListIterator can only be ...

package wrap; import java.util.*; public class ArrayListDemo { public static void main(String [] args){ ArrayList<String> a=new ArrayList<String>(); a.add("B"); a.add("C"); a.add(...

I know we can use advance() function to increment the iterator. We also use iterator++ to increase the iterator by one position. Why we cannot use it+=2? int main() { list<int> l1{1, 2, 3, ...

Say I have a very large list of integers that occupies a very large amount of memory. If the list's integers were in even increments, I could then easily express the list as an iterator occupying c...

ArrayList<String> list = new ArrayList<String>(); list.add("test"); while(list.listIterator().hasNext()) { System.out.println(list.listIterator().next()); } This generates an endles...

I have a list that contains roughly 200K elements. Am I able to pass the iterator for this list to multiple threads and have them iterate over the whole lot, without any of them accessing the same...

Is it safe to add items to a LinkedList while iterating? class Worker { final LinkedList<Foo> worklist = new LinkedList<>(); public void work() { Iterator<Foo> iterator = w...

I am working with selenium and I am using the function FindElements so I am getting a element that implements IReadOnlyCollection interface. I want to iterate through the list but it seems that IRe...

Lets have a look at this example: public class ListIteratorTest { public static void main(String[] args) { List<String> list = new ArrayList<>(); list.add("element1"); list.add("el...

I am new to go language. I would like to remove elements from the list while iterating the list based on a condition in go language. For example I want remove the duplicate elements from the list. ...

Although the documentation specifically states that both LinkedHashMap and LinkedHashSet maintains a doubly-linked list running through all of its entries I don't understand why these impleme...

I am trying to use for in to iterate a TObjectList: program Project1; {$APPTYPE CONSOLE} {$R *.res} uses System.SysUtils, Contnrs; var list: TObjectlist; o: TObject; begin list := TObjectL...

I am reading the differrences between ArrayList and LinkedList pointed out in When to use LinkedList over ArrayList?. I developed a small example applcation to test a major advantage of LinkedList ...

If I have a std::vector<int>, I can obtain the index of the minimum element by subtracting two iterators: int min_index = std::min_element(vec.begin(), vec.end()) - vec.begin(); However, w...

Possible Duplicate: Java: adding elements to a collection during iteration My problem is that I want to expand a list with new elements while iterating over it and I want the iterator...