CityNavigator.java Source code

Introduction

Here is the source code for CityNavigator.java

Source

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

public class CityNavigator {
    static NavigableSet<String> citiesSet;

    public static void main(String[] args) {
        String[] cities = { "A", "B", "C", "D", "E", "F" };

        citiesSet = new TreeSet<String>();
        for (String city : cities)
            citiesSet.add(city);

        System.out.println(citiesSet.floor("A"));
    }

}