The listIterator() method of Java.util.Stack class is used to return a list iterator over the elements in this stack (in proper sequence). The returned list iterator is fail-fast.
Syntax:
public ListIterator listIterator()
Return Value: This method returns a list iterator over the elements in this stack (in proper sequence).
Below are the examples to illustrate the listIterator() method.
Example 1:
// Java program to demonstrate// listIterator() method// for String value  import java.util.*;  public class GFG1 {    public static void main(String[] argv) throws Exception    {        try {              // Creating object of Stack<Integer>            Stack<String>                stack = new Stack<String>();              // adding element to stack            stack.add("A");            stack.add("B");            stack.add("C");            stack.add("D");              // print stack            System.out.println("Stack: "                               + stack);              // Creating object of ListIterator<String>            // using listIterator() method            ListIterator<String>                iterator = stack.listIterator();              // Printing the iterated value            System.out.println("\nUsing ListIterator:\n");            while (iterator.hasNext()) {                System.out.println("Value is : "                                   + iterator.next());            }        }          catch (NullPointerException e) {            System.out.println("Exception thrown : " + e);        }    }} |
Output:
Stack: [A, B, C, D] Using ListIterator: Value is : A Value is : B Value is : C Value is : D
Program 2:
// Java code to illustrate lastIndexOf()import java.util.*;  public class StackDemo {    public static void main(String args[])    {          // Creating an empty Stack        Stack<Integer> stack = new Stack<Integer>();          // Use add() method to add elements in the Stack        stack.add(1);        stack.add(2);        stack.add(3);        stack.add(10);        stack.add(20);          // Displaying the Stack        System.out.println("Stack: " + stack);          // Creating object of ListIterator<String>        // using listIterator() method        ListIterator<Integer>            iterator = stack.listIterator();          // Printing the iterated value        System.out.println("\nUsing ListIterator:\n");        while (iterator.hasNext()) {            System.out.println("Value is : "                               + iterator.next());        }    }} |
Output:
Stack: [1, 2, 3, 10, 20] Using ListIterator: Value is : 1 Value is : 2 Value is : 3 Value is : 10 Value is : 20
