Iterator Java Tutorial
In this java tutorial we will see about the iterator interface and its functionality. We will create an example for the Iterator
In this java tutorial we will see about the iterator interface and its functionality. We will create an example for the Iterator
- Java 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().
- List, Set interface has iterator() methods .
Example of Java Iterator
import java.util.*;
public class iterator1 {
public static void main(String[] args) {
List list = new ArrayList();
int ar[] = { 11, 22, 33, 44, 55 };
for (int i = 0; i < ar.length; i++) {
list.add(ar[i]);
}
Iterator i = list.iterator();
while (i.hasNext()) {
System.out.print(i.next() + "\t");
}
}
}
Output
11 22 33 44 55
