Click here to watch in Youtube : https://www.youtube.com/watch?v=HxXJKCZ3xDM&list=UUhwKlOVR041tngjerWxVccwTreeSetExample.java import java.util.LinkedList;
import java.util.TreeSet;
/*
* Example of addAll(Collection<? extends E> c) method.
*/
public class TreeSetExample
{
public static void main(String[] args)
{
TreeSet<Integer> treeSet = new TreeSet<Integer>();
treeSet.add(40);
treeSet.add(20);
treeSet.add(30);
System.out.println("treeSet : " + treeSet + "\n");
LinkedList<Integer> linkedList = new LinkedList<Integer>();
linkedList.add(100);
linkedList.add(200);
System.out.println("linkedList : " + linkedList + "\n");
/*
* Adds all of the elements in the linkedList to the treeSet.
*/
boolean isAdded = treeSet.addAll(linkedList);
System.out.println("isAdded : " + isAdded);
System.out.println("treeSet : " + treeSet + "\n");
}
}
Output treeSet : [20, 30, 40]
linkedList : [100, 200]
isAdded : true
treeSet : [20, 30, 40, 100, 200]