package in.bench.resources.java.collection;

import java.util.NavigableSet;
import java.util.TreeSet;

public class NavigableSetMethods {

	public static void main(String[] args) {

		// creating NavigableSet reference and TreeSet object
		NavigableSet<String> ns = new TreeSet<String>();

		// adding elements to NavigableSet/TreeSet object
		ns.add("Sundar Pichai");
		ns.add("Satya Nadella");
		ns.add("Shiv Nadar");
		ns.add("Shantanu Narayen");
		ns.add("Sundar Pichai"); // adding duplicate element
		ns.add("Francisco D’Souza");
		ns.add("Vishal Sikka");
		ns.add("Chanda Kochhar");

		// natural ordering of elements
		System.out.println("Elements Sorted acc to Natural ordering :\n");
		System.out.println(ns);

		// floor and lower methods
		System.out.println("\n\nfloor(Satya Nadella)  : "
				+ ns.floor("Satya Nadella"));
		System.out.println("\n\nlower(Satya Nadella)  : "
				+ ns.lower("Satya Nadella"));

		// ceiling and higher methods
		System.out.println("\n\nceiling(Shantanu Narayen)  : "
				+ ns.ceiling("Shantanu Narayen"));
		System.out.println("\n\nhigher(Shantanu Narayen)  : "
				+ ns.higher("Shantanu Narayen"));

		// pollFirst method
		System.out.println("\n\npollFirst() : "
				+ ns.pollFirst());
		System.out.println("\nNavigableSet after polling First : \n"
				+ ns);

		// pollLast method
		System.out.println("\n\npollLast() : " + ns.pollLast());
		System.out.println("\nNavigableSet after polling Last : \n"
				+ ns);

		System.out.println("\n\nNavigableSet in descending order : \n"
				+ ns.descendingSet());
	}
}

Elements Sorted acc to Natural ordering : 

[Chanda Kochhar, Francisco D’Souza, Satya Nadella, Shantanu Narayen,
Shiv Nadar, Sundar Pichai, Vishal Sikka]

floor(Satya Nadella)  : Satya Nadella

lower(Satya Nadella)  : Francisco D’Souza

ceiling(Shantanu Narayen)  : Shantanu Narayen

higher(Shantanu Narayen)  : Shiv Nadar

pollFirst() : Chanda Kochhar

NavigableSet after polling First :
[Francisco D’Souza, Satya Nadella, Shantanu Narayen, Shiv Nadar,
Sundar Pichai, Vishal Sikka]

pollLast() : Vishal Sikka

NavigableSet after polling Last :
[Francisco D’Souza, Satya Nadella, Shantanu Narayen,
Shiv Nadar, Sundar Pichai]

NavigableSet in descending order :
[Sundar Pichai, Shiv Nadar, Shantanu Narayen,
Satya Nadella, Francisco D’Souza]

Set set = Collections.synchronizedSet(ns);