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The iterator() method of Java AbstractCollection class
The iterator() method of the AbstractCollection class in Java is used to return an iterator over the elements contained in this collection.
The syntax is as follows −
public abstract Iterator<E> iterator()
To work with AbstractCollection class in Java, import the following package −
import java.util.AbstractCollection;
For Iterator, import the following package −
import java.util.Iterator;
The following is an example to implement the AbstractCollection iterator() method in Java −
Example
import java.util.Iterator;
import java.util.ArrayList;
import java.util.AbstractCollection;
public class Demo {
public static void main(String[] args) {
AbstractCollection<Object> absCollection = new ArrayList<Object>();
absCollection.add("Laptop");
absCollection.add("Tablet");
absCollection.add("Mobile");
absCollection.add("E-Book Reader");
absCollection.add("SSD");
absCollection.add("HDD");
System.out.println("AbstractCollection = " + absCollection);
System.out.println("Iterating elements one by one...");
Iterator i = absCollection.iterator();
while (i.hasNext()) {
System.out.println(i.next());
}
}
}Output
AbstractCollection = [Laptop, Tablet, Mobile, E-Book Reader, SSD, HDD] Iterating elements one by one... Laptop Tablet Mobile E-Book Reader SSD HDD
Updated on: 30-Jul-2019
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