Creating a TreeSet and Adding elements to it

 

import java.util.Iterator;

import java.util.TreeSet;

import javax.management.monitor.StringMonitor;

public class TreeSetAdd {

public static void main(String[] args) {

// creating our TreeSet

TreeSet<String> ts = new TreeSet<>();

// adding element to our set

// insertion order is not maintained here

ts.add("Neha");

ts.add("Nisha");

ts.add("Nishu");

ts.add("Rekha");

ts.add("Madhu");

ts.add("Disha");

ts.add("Tara");

// iterating using Iterator

Iterator<String> itr = ts.iterator();

while (itr.hasNext()) {

System.out.println(itr.next());

}

}

}