Click here to watch in Youtube :
https://www.youtube.com/watch?v=5piLTE5d9Ps&list=UUhwKlOVR041tngjerWxVccw
CollectionsExample.java
Output
https://www.youtube.com/watch?v=5piLTE5d9Ps&list=UUhwKlOVR041tngjerWxVccw
CollectionsExample.java
import java.util.ArrayList; import java.util.Collections; /* * Example of addAll(Collection<? super T> c, T... elements) method */ public class CollectionsExample { public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("Ajay"); arrayList.add("Vijay"); arrayList.add("David"); System.out.println("arrayList : " + arrayList+"\n"); /* * Adds all of the specified elements to the specified collection. * Elements to be added may be specified individually or as an array * * Returns: true if the collection changed as a result of the call */ boolean isAdded = Collections.addAll(arrayList, "Raju", "Karan", "Julia"); System.out.println("isAdded : "+isAdded+"\n"); System.out.println("arrayList : " + arrayList+"\n"); } }
arrayList : [Ajay, Vijay, David] isAdded : true arrayList : [Ajay, Vijay, David, Raju, Karan, Julia]
https://sites.google.com/site/javaee4321/java-collections/CollectionsDemoAddAllApp.zip?attredirects=0&d=1
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