/*
Add or insert an element to ArrayList using Java ListIterator Example
This Java Example shows how to add or insert an element while traversing through
elements of ArrayList using Java ListIterator.
*/
import java.util.ListIterator;
import java.util.ArrayList;
public class AddAnElementUsingListIteratorExample {
public static void main(String[] args) {
//create an object of ArrayList
ArrayList aList = new ArrayList();
//Add elements to ArrayList object
aList.add("1");
aList.add("2");
aList.add("3");
aList.add("4");
aList.add("5");
//Get an object of ListIterator using listIterator() method
ListIterator listIterator = aList.listIterator();
/*
Use void add(Object o) method of ListIterator to add or insert an element to List.
It adds an element just before the element that would have been returned by next
method call and after the element that would have returned by previous call.
*/
listIterator.next();
//Add an element
listIterator.add("Added Element");
/*
add method can throw UnsupportedOperationException if add operation
is not supported by this ListIterator.
Please also note that, sebsequent call to previous method after adding
an element, would return the newly added element.
*/
System.out.println("After inserting element, ArrayList contains");
for(int intIndex = 0; intIndex < aList.size(); intIndex++)
System.out.println(aList.get(intIndex));
}
}
/*
Output would be
After inserting element, ArrayList contains
1
Added Element
2
3
4
5
*/
