Treeset:
The elements are ordered using their natural ordering, or by a Comparator provided at set creation time, depending on which constructor is used.
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"); } }
Output:
TreeSet .. [123, hai, lts, mathan, ramya, ravathi, sri, suji] size ... 8 Output will be in ascending order and dupliate will be removed