DICTIONARYCLASS

import java.util.*;
public class DICTIONARYCLASS {
    public static void main(String[] args) {

        Dictionary<Integer, String> MyDictionary = new Hashtable<>();

        MyDictionary.put(1, "Monday");
        MyDictionary.put(2, "Tuesday");
        MyDictionary.put(3, "Wednesday");
        MyDictionary.put(4, "Thursday");
        MyDictionary.put(5, "Friday");
        MyDictionary.put(6, "Saturday");
        MyDictionary.put(7, "Sunday");

        System.out.println();
        System.out.println();

        //PRINTING SYZE
        int NumberOfElements = MyDictionary.size();
        System.out.println("Number of elements: " + NumberOfElements);
        System.out.println();


        System.out.println("Print whole dictionary: " + MyDictionary);
        System.out.println();

////////////////////INTERATIONS BY ENUMERATION
        //PRINT KEYS BY ENUMERATOR IN FOR-EACH CYCLE
        for (Enumeration items = MyDictionary.keys(); items.hasMoreElements();) {

            System.out.println("Keys in Dictionary by enumerator: " + items.nextElement());
        }
        System.out.println();

        //PRINT ELEMENTS (VALUES) BY ENUMERATOR IN FOR-EACH CYCLE
        for (Enumeration items = MyDictionary.elements(); items.hasMoreElements();) {

            System.out.println("Keys in Dictionary by enumerator: " + items.nextElement());
        }
        System.out.println();

        //REMOVING ELEMENTS
        MyDictionary.remove(5);
        MyDictionary.remove(6);

        for (Enumeration items = MyDictionary.keys(); items.hasMoreElements();) {

            System.out.println("Keys in Dictionary by enumerator(after remove): " + items.nextElement());
        }
        System.out.println();

        for (Enumeration items = MyDictionary.elements(); items.hasMoreElements();) {

            System.out.println("Keys in Dictionary by enumerator(after remove): " + items.nextElement());
        }
        System.out.println();
   }
}