Java Iterator with Example


 

Java Iterator with Example

In this tutorial we will see about the iterator interface and its functionality. We will create an example for the Java Iterator

In this tutorial we will see about the iterator interface and its functionality. We will create an example for the Java Iterator

  • Iterator is an interface in the collection framework
  • It traverses through all the elements of the collection.
  • It works like enumeration.
  • It has methods hasNext() and next().

Java Iterator Example

import java.util.*;    
public class iterator {
    public static void main(String[] args) {
        List list=new ArrayList();

        for (int i = 0; i <5 ; i++) {
        list.add(new Random().nextInt(10));
               }
        Iterator i=list.iterator();
            while(i.hasNext()){
        System.out.print(i.next()+"\t");
     }
  }
}

Output

6 3 7 5 3

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