Skip to Content

Remove value from Java Hashtable example

  • strict warning: Non-static method view::load() should not be called statically in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/views.module on line 906.
  • strict warning: Declaration of views_handler_argument::init() should be compatible with views_handler::init(&$view, $options) in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/handlers/views_handler_argument.inc on line 0.
  • strict warning: Declaration of views_handler_filter::options_validate() should be compatible with views_handler::options_validate($form, &$form_state) in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/handlers/views_handler_filter.inc on line 0.
  • strict warning: Declaration of views_handler_filter::options_submit() should be compatible with views_handler::options_submit($form, &$form_state) in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/handlers/views_handler_filter.inc on line 0.
  • strict warning: Declaration of views_handler_filter_boolean_operator::value_validate() should be compatible with views_handler_filter::value_validate($form, &$form_state) in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/handlers/views_handler_filter_boolean_operator.inc on line 0.
  • strict warning: Declaration of views_plugin_style_default::options() should be compatible with views_object::options() in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/plugins/views_plugin_style_default.inc on line 0.
  • strict warning: Declaration of views_plugin_row::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state) in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/plugins/views_plugin_row.inc on line 0.
  • strict warning: Declaration of views_plugin_row::options_submit() should be compatible with views_plugin::options_submit(&$form, &$form_state) in /home/javaexa1/public_html/sites/all/modules/views-6.x-2.16/views/plugins/views_plugin_row.inc on line 0.

  1. /*
  2.   Remove value from Java Hashtable example
  3.   This Java Example shows how to remove a key value pair from Hashtable object using
  4.   remove method.
  5. */
  6.  
  7. import java.util.Enumeration;
  8. import java.util.Hashtable;
  9.  
  10. public class RemoveValueFromHashtableExample {
  11.  
  12.   public static void main(String[] args) {
  13.    
  14.     //create Hashtable object
  15.     Hashtable ht = new Hashtable();
  16.    
  17.     //add key value pairs to Hashtable
  18.     ht.put("1","One");
  19.     ht.put("2","Two");
  20.     ht.put("3","Three");
  21.  
  22.     /*
  23.       To remove a key value pair from Hashtable use
  24.       Object remove(Object key) method of Hashtable class.
  25.       It returns either the value mapped with the key or null if no value
  26.       was mapped.    
  27.     */
  28.    
  29.     Object obj = ht.remove("2");
  30.     System.out.println(obj + " Removed from Hashtable");
  31.    
  32.     //print remaining Hashtable values
  33.     Enumeration e = ht.elements();
  34.    
  35.     //iterate through Hashtable values Enumeration
  36.     while(e.hasMoreElements())
  37.       System.out.println(e.nextElement());
  38.   }
  39. }
  40.  
  41. /*
  42. Output would be
  43. Two Removed from Hashtable
  44. Three
  45. One
  46. */