/*
Iterate through elements Java ArrayList using ListIterator Example
This Java Example shows how to iterate through the elements of java
ArrayList object in forward and backward direction using ListIterator.
*/
import java.util.ArrayList;
import java.util.ListIterator;
public class IterateThroughArrayListUsingListIteratorExample {
public static void main(String[] args) {
//create an ArrayList object
ArrayList arrayList = new ArrayList();
//Add elements to Arraylist
arrayList.add("1");
arrayList.add("2");
arrayList.add("3");
arrayList.add("4");
arrayList.add("5");
/*
Get a ListIterator object for ArrayList using
listIterator() method.
*/
ListIterator itr = arrayList.listIterator();
/*
Use hasNext() and next() methods of ListIterator to iterate through
the elements in forward direction.
*/
System.out.println("Iterating through ArrayList elements in forward direction...");
while(itr.hasNext())
System.out.println(itr.next());
/*
Use hasPrevious() and previous() methods of ListIterator to iterate through
the elements in backward direction.
*/
System.out.println("Iterating through ArrayList elements in backward direction...");
while(itr.hasPrevious())
System.out.println(itr.previous());
}
}
/*
Output would be
Iterating through ArrayList elements...
Iterating through ArrayList elements in forward direction...
1
2
3
4
5
Iterating through ArrayList elements in backward direction...
5
4
3
2
1
*/
