package collections;

import java.util.Dictionary;

import java.util.Enumeration;

import java.util.Hashtable;

public class DictionaryExample {

public static void main(String[] args) {

Dictionary dictionary = new Hashtable();

dictionary.put(100, "Hello");

dictionary.put(101, "World");

// elements() method

for(Enumeration i = dictionary.elements(); i.hasMoreElements();) {

System.out.println("Value in Dictionary: " + i.nextElement());

}

System.out.println("Value at key = 100: " + dictionary.get(100));

System.out.println("There is no key-value pair: " + dictionary.isEmpty());

// keys() method

for(Enumeration k = dictionary.keys(); k.hasMoreElements();) {

System.out.println("Keys in Dictionary: " + k.nextElement());

}

System.out.println("Remove: " + dictionary.remove(100));

System.out.println("The value of remove key 100: " + dictionary.get(100));

System.out.println("Size of Dictionary: " + dictionary.size());

}

}