Java : Collection Framework : Hashtable (Size)

Click here to watch in Youtube : 
https://www.youtube.com/watch?v=pGX9MS1SB8A&list=UUhwKlOVR041tngjerWxVccw

HashtableExample.java

import java.util.Hashtable;

/*
 * Example of size() method.
 */
public class HashtableExample
{
    public static void main( String[] args )
    {

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

        /*
         * Key = CountryCode,Value = CountryName
         */
        hashtable.put("AF", "AFGHANISTAN");
        hashtable.put("BE", "BELGIUM");
        hashtable.put("US", "UNITED STATES");
        hashtable.put("IN", "INDIA");

        System.out.println("hashtable : " + hashtable + "\n");

        /*
         * Returns the number of keys in this hashtable.
         */
        int size = hashtable.size();

        System.out.println("size : " + size);

    }
}

Output

hashtable : {IN=INDIA, AF=AFGHANISTAN, BE=BELGIUM, US=UNITED STATES}

size : 4

To Download HashtableDemoSize  Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/HashtableDemoSize.zip?attredirects=0&d=1

See also:

All JavaEE Viedos Playlist

All JavaEE Viedos

Servlets Tutorial

All Design Patterns Links

JDBC Tutorial