TreeSet in java

import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;
 
/**
 * This class is used to show the TreeSet functionality.
 * @author w3spoint
 */
public class TreeSetTest {
	public static void main(String args[]){
		//Create TreeSet object.
		Set treeSet = new TreeSet();
 
		//Add objects to the HashSet.
		treeSet.add("Roxy");
		treeSet.add("Sunil");
		treeSet.add("Sandy");
		treeSet.add("Munish");
		treeSet.add("Pardeep");
 
		//Print the TreeSet object.
		System.out.println("TreeSet elements:");
		System.out.println(treeSet);
 
		//Print the TreeSet elements using iterator.
		Iterator iterator=treeSet.iterator();
		System.out.println("TreeSet elements using iterator:");
		while(iterator.hasNext()){  
		   System.out.println(iterator.next());  
		}  
	}
}

import java.util.Iterator; import java.util.Set; import java.util.TreeSet; /** * This class is used to show the TreeSet functionality. * @author w3spoint */ public class TreeSetTest { public static void main(String args[]){ //Create TreeSet object. Set treeSet = new TreeSet(); //Add objects to the HashSet. treeSet.add("Roxy"); treeSet.add("Sunil"); treeSet.add("Sandy"); treeSet.add("Munish"); treeSet.add("Pardeep"); //Print the TreeSet object. System.out.println("TreeSet elements:"); System.out.println(treeSet); //Print the TreeSet elements using iterator. Iterator iterator=treeSet.iterator(); System.out.println("TreeSet elements using iterator:"); while(iterator.hasNext()){ System.out.println(iterator.next()); } } }

TreeSet elements:
[Munish, Pardeep, Roxy, Sandy, Sunil]
TreeSet elements using iterator:
Munish
Pardeep
Roxy
Sandy
Sunil

TreeSet elements: [Munish, Pardeep, Roxy, Sandy, Sunil] TreeSet elements using iterator: Munish Pardeep Roxy Sandy Sunil