.hasPrevious()

The .hasPevious() method returns true if a ListIterator object has prior elements (i.e., elements before the current element). Returns false otherwise.

Syntax

Boolean value = iterator.hasPevious();

Where iterator is a ListIterator object.

Example

The following example uses a ListIterator to traverse an ArrayList and then traverse back:

import java.util.*;

public class Example {
  public static void main(String args[]) {
    // Create a new ArrayList
    ArrayList l = new ArrayList();

    // Add some items to the ArrayList
    l.add(1);
    l.add(2);
    l.add(3);
    l.add(4);
    l.add(5);

    ListIterator i = l.listIterator();

    // Loop through ArrayList contents
    while(i.hasNext()) {
      Object item = i.next();
      System.out.print(item + ", ");
    }

    System.out.println();

    // Loop back through ArrayList contents
    while(i.hasPrevious()) {
      Object item = i.previous();
      System.out.print(item + ", ");
    }
  }
}

This example outputs the following:

1, 2, 3, 4, 5,
5, 4, 3, 2, 1,