The elements are ordered using their natural ordering, or by a Comparator provided at set creation time, depending on which constructor is used
Example
package com.candidjava.core;
import java.util.TreeSet;
public class TreeSetExample {
public static void main(String[] args) {
TreeSet<String> ts = new TreeSet<String>();
ts.add("hai");
ts.add("123");
ts.add("mathan");
ts.add("lts");
ts.add("mathan");
ts.add("lts");
ts.add("ramya");
ts.add("suji");
ts.add("ravathi");
ts.add("sri");
System.out.println("TreeSet .. " + ts);
System.out.println("size ... " + ts.size());
System.out
.println("Output will be in ascending order and dupliate will be removed");
}
}