Vector iterator() method in Java with Examples

The Java.util.Vector.iterator() method is used to return an iterator of the same elements as that of the Vector. The elements are returned in random order from what was present in the vector.

Syntax:

Iterator iterate_value = Vector.iterator();

Parameters: The function does not take any parameter.

Return Value: The method iterates over the elements of the vector and returns the values(iterators).

Below program illustrates the use of Java.util.Vector.iterator() method:



Example 1:

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// Java code to illustrate iterator()
  
import java.util.*;
import java.util.Vector;
  
public class VectorDemo {
    public static void main(String args[])
    {
        // Creating an empty Vector
        Vector<String> vector = new Vector<String>();
  
        // Use add() method to add elements into the Vector
        vector.add("Welcome");
        vector.add("To");
        vector.add("Geeks");
        vector.add("4");
        vector.add("Geeks");
  
        // Displaying the Vector
        System.out.println("Vector: " + vector);
  
        // Creating an iterator
        Iterator value = vector.iterator();
  
        // Displaying the values
        // after iterating through the vector
        System.out.println("The iterator values are: ");
        while (value.hasNext()) {
            System.out.println(value.next());
        }
    }
}

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Output:


Vector: [Welcome, To, Geeks, 4, Geeks]
The iterator values are: 
Welcome
To
Geeks
4
Geeks





Example 2:











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// Java code to illustrate hashCode() 


  


import java.util.*; 


  


public class VectorDemo { 


    public static void main(String args[]) 


    { 


        // Creating an empty Vector 


        Vector<Integer> vector 


            = new Vector<Integer>(); 


  


        // Use add() method 


        // to add elements into the Vector 


        vector.add(10); 


        vector.add(20); 


        vector.add(30); 


        vector.add(40); 


        vector.add(50); 


  


        // Displaying the Vector 


        System.out.println("Vector: " + vector); 


  


        // Creating an iterator 


        Iterator value = vector.iterator(); 


  


        // Displaying the values 


        // after iterating through the vector 


        System.out.println("The iterator values are: "); 


        while (value.hasNext()) { 


            System.out.println(value.next()); 


        } 


    } 


} 



















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Output:


Vector: [10, 20, 30, 40, 50]
The iterator values are: 
10
20
30
40
50







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