Core Java Tutorial

Core Java Tutorial

Java Treeset Example Program

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