Monday, 2 March 2015

Java : Collection Framework : Hashtable (Remove)


Click here to watch in Youtube : 
https://www.youtube.com/watch?v=sdy1xgAmCcU&list=UUhwKlOVR041tngjerWxVccw

HashtableExample.java
import java.util.Hashtable;

/*
 * Example of remove(Object key) 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");

        /*
         * Removes the key (and its corresponding value) from this hashtable.
         * 
         * This method does nothing if the key is not in the hashtable.
         */

        String value = hashtable.remove("US");

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

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

value : UNITED STATES

hashtable : {IN=INDIA, AF=AFGHANISTAN, BE=BELGIUM}
To Download HashtableDemoRemove Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/HashtableDemoRemove.zip?attredirects=0&d=1

See also:
  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
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