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Retrieving Elements from Collection in Java- ListIterator
Following is an example to retrieve elements from Collection in Java-ListIterator −
Example
import java. util.* ;
public class Demo {
public static void main(String args[]) {
Vector<Integer> my_vect = new Vector<Integer>();
my_vect.add(56);
my_vect.add(78);
my_vect.add(98);
my_vect.add(34);
ListIterator my_iter = my_vect.listIterator();
System.out.println("In forward direction:");
while (my_iter.hasNext())
System.out.print(my_iter.next()+" ") ;
System.out.print("
In backward direction:
") ;
while (my_iter.hasPrevious())
System.out.print(my_iter.previous()+" ");
}
}Output
In forward direction: 56 78 98 34 In backward direction: 34 98 78 56
A class named Demo contains the main function, where a Vector instance is defined. Elements are added to the vector with the help of the ‘add’ function. Now, a ListIterator instance is created, and the elements of the vector are printed on the screen. The elements of the vector are also printed in a reversed direction with the help of the ‘hasPrevious’ and ‘previous’ functions.
Updated on: 14-Sep-2020
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