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import java.util.ArrayList; import java.util.Collection; import java.util.List; import java.util.concurrent.ConcurrentLinkedQueue; public class JavaCollectionRetainAllExample5 { public static void main(String[] args) { Collection<Integer> collection = new ConcurrentLinkedQueue<Integer>(); int i; for(i=1;i<=50;++i){ collection.add(i); } System.out.println("collection : "+collection); List<Integer> list = new ArrayList<Integer>(); for ( i=1; i<=50;++i){ if(i%5==0){ list.add(i); } } //retains only those elements in the collection which are present in list collection.retainAll(list); System.out.println("Vowels : "+collection); } }
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