Title 16 exercise 1

import java.util.Dictionary;
import java.util.Hashtable;
import java.util.Scanner;

public class dictionary {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int numbers = input.nextInt();
        Dictionary<Integer, String> dictionary = new Hashtable<>();
        dictionary.put(0, "");
        dictionary.put(1, "January");
        dictionary.put(2, "February");
        dictionary.put(3, "March");
        dictionary.put(4, "April");
        dictionary.put(5, "May");
        dictionary.put(6, "June");
        dictionary.put(7, "July");
        dictionary.put(8, "August");
        dictionary.put(9, "September");
        dictionary.put(10, "October");
        dictionary.put(11, "November");
        dictionary.put(12, "December");
        System.out.println(dictionary.get(numbers));
        Dictionary<String, Integer> dictionary2021 = new Hashtable<>();
        dictionary2021.put("January", 1);
        dictionary2021.put("February", 2);
        dictionary2021.put("March", 3);
        dictionary2021.put("April", 4);
        dictionary2021.put("May", 5);
        dictionary2021.put("June", 6);
        dictionary2021.put("July", 7);
        dictionary2021.put("August", 8);
        dictionary2021.put("September", 9);
        dictionary2021.put("October", 10);
        dictionary2021.put("November", 11);
        dictionary2021.put("December", 12);
        String months = input.next();
        System.out.println(dictionary2021.get(months));
        System.out.println("Have a nice day!");
    }
}