Code showing the use of collection and iterator in Java

CollectionTest

import java.util.*;

 /** This code shows the purpose of collection and iterator
  * classes in java. This code was made from code from
  * the book "Java How To Program - edition 9" from figure 20.2
  * @author Naji Kadri
  * 
  * @version 1.0
  */

public class CollectionTest {
	
	public static void main (String args[]) {
		
		String[] colors = {"Red","White","Green","Orange","Blue","Gold"};
		List<String> list = new ArrayList<String>();
		
		for (String color: colors) {
			list.add(color);
		}
		
		String[] removeColors = {"Red","Orange","Gold"};
		List<String> removeList = new ArrayList<String>();
		for (String color: removeColors) {
			removeList.add(color);
		}
		
		System.out.println("ArrayList: ");
		
		for (int i=0; i < list.size();i++) {
			System.out.printf("%s ",list.get(i));
		}
		
            removeColors (list,removeList);
       
       System.out.println("\nArrayList after removing colors");
       
       for (String color: list) {
    	   System.out.printf("%s ", color);
       }
	}
       
       public static void removeColors (Collection<String> collection1, Collection<String> collection2) {
    	   Iterator<String> iterator = collection1.iterator();
    	   
    	   while (iterator.hasNext()) {
    		   if (collection2.contains(iterator.next())) {
    			   iterator.remove();
    		   }
    	   }
       
       
		
		
		
	}
}