Stack listIterator() method in Java with Example
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
