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);         }     } } |
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());         }     } } |
Stack: [1, 2, 3, 10, 20] Using ListIterator: Value is : 1 Value is : 2 Value is : 3 Value is : 10 Value is : 20