The Java.util.Stack.iterator() method is used to return an iterator of the same elements as that of the Stack. The elements are returned in random order from what was present in the stack.
Syntax:
Iterator iterate_value = Stack.iterator();
Parameters: The function does not take any parameter.
Return Value: The method iterates over the elements of the stack and returns the values(iterators).
Below program illustrates the use of Java.util.Stack.iterator() method:
Example 1:
// Java code to illustrate iterator()  import java.util.*;import java.util.Stack;  public class StackDemo {    public static void main(String args[])    {        // Creating an empty Stack        Stack<String> stack = new Stack<String>();          // Use add() method to add elements into the Stack        stack.add("Welcome");        stack.add("To");        stack.add("Geeks");        stack.add("4");        stack.add("Geeks");          // Displaying the Stack        System.out.println("Stack: " + stack);          // Creating an iterator        Iterator value = stack.iterator();          // Displaying the values        // after iterating through the stack        System.out.println("The iterator values are: ");        while (value.hasNext()) {            System.out.println(value.next());        }    }} |
Output:
Stack: [Welcome, To, Geeks, 4, Geeks] The iterator values are: Welcome To Geeks 4 Geeks
Example 2:
// Java code to illustrate hashCode()  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 into the Stack        stack.add(10);        stack.add(20);        stack.add(30);        stack.add(40);        stack.add(50);          // Displaying the Stack        System.out.println("Stack: " + stack);          // Creating an iterator        Iterator value = stack.iterator();          // Displaying the values        // after iterating through the stack        System.out.println("The iterator values are: ");        while (value.hasNext()) {            System.out.println(value.next());        }    }} |
Output:
Stack: [10, 20, 30, 40, 50] The iterator values are: 10 20 30 40 50
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