Read ArrayList Using Iterator In Java

Chapter: Data Structures Last Updated: 11-08-2017 09:19:09 UTC

Program:

            /* ............... START ............... */
                
import java.util.ArrayList;
import java.util.Iterator;

public class JavaArrayListIterator {
	public static void main(String a[]) {
		ArrayList<String> arrl = new ArrayList<String>();
		// adding elements to the end
		arrl.add("Java");
		arrl.add("Scan");
		arrl.add("Collection");
		Iterator<String> itr = arrl.iterator();
		while (itr.hasNext()) {
			System.out.println(itr.next());
		}
	}
}
                /* ............... END ............... */
        

Output

Java
Scan
Collection

Notes:

  • itr.hasNext() checks whether new entry exists in arraylist.
  • Obtain an iterator to the start of the collection by calling the collection's iterator( ) method.
  • Within the loop, obtain each element by calling next( ).

Tags

Read ArrayList Using Iterator, Java

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