package datastructure.hashtable;

import java.util.ArrayList;

import java.util.Enumeration;

import java.util.Hashtable;

import java.util.List;

import java.util.Collections;

public class AddKeyValue {

public static void main(String[] s) {

Hashtable<String, String> table = new Hashtable();

table.put("gan", "value1");

table.put("ann", "value2");

table.put("bob", "value3");

Enumeration<String> e = table.keys();

while (e.hasMoreElements()) {

String key = e.nextElement();

System.out.println(key + " : " + table.get(key));

}

System.out.println(table.keySet());

Enumeration<String> val = table.elements();

while (val.hasMoreElements()) {

String value = val.nextElement();

System.out.print(value + " ");

}

System.out.println();

System.out.println("value4 exists? " + table.containsValue("value3"));

System.out.println("key3 exists? " + table.containsKey("key3"));

System.out.println(table.get("key1"));

List<String> list = new ArrayList<String>(table.keySet());

Collections.sort(list);

Hashtable<String, String> ht = new Hashtable<String, String>();

for (String str : list) {

System.out.println(str + ": " + table.get(str));

ht.put(str, table.get(str));

}

System.out.println(table);

System.out.println(ht);

}

}