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Handling multiple checkboxes with same id's If suppose you have defined more than one checkboxes with sdame id's, then it will treat it as an array of names. <form name="CheckBoxForm"> <input type="Checkbox" name="myCheckbox" id="myCheckbox"  /> <input type="Checkbox" name="myCheckbox" id="myCheckbox"  /> <input type="Checkbox" name="myCheckbox" id="myCheckbox"  /> <input type="Checkbox" name="myCheckbox" id="myCheckbox"  /> <input type="" onclick="testCheckboxes()" /> </form> Now according to HTML, id must be unique. So here it will treat them like an array. So if you want to access them, do as given here, function testCheckboxes(){ var myCheckboxArray= new Array(); var total=document.getElementsByName('myCheckbox').length; for(var i=0;i<total;i++){ ...

Email validation at client side(Java Script) --------------------------------------------- function validateEmailAddress(emailAddress) {      var expression = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;     return expression.test(email); } This function will return true if it is a valid email address otherwise false if it is invalid email address. ---------------------------------------------- Email validation at server side using Java ----------------------------------------------- import java.util.regex.Matcher; import java.util.regex.Pattern; public class EmailAddressValidator{  private Pattern pattern;  private Matcher matcher;  private static final String EMAIL_ADDRESS_PATTERN = "^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";  public Email...

Scrolable DIV: overflow: auto   => It will create a scrollbar - horizontal, vertical or both only if the content in the block                     requires it. overflow: scroll => It will will insert horizontal and vertical scrollbars. They will become active and shown                     only if the content requires it. overflow: visible => It will cause the content of the block to expand outside of it and be visible at the same time. overflow: hidden =>  This forces the block to only show content that fits in the block. Remainng content will                                   be  clipped and not visible to you. There will be no scrollbars. For ex: <div class="scrolableDiv"....></div> where in CSS class: .scrolableDiv{   height:180...

Accessing parent window form from child window in html window.parent.document.parentFormName.submit(); Here parentFormName is the name of Form of parent window that you want to submit from child window. Ex, <form name="parentFormName".....> Accessing parent window's form input parameters to child window, var userName= window.parent.document.getElementById('userName').value; Here userName is the id element of input field on parent form. Ex.     <form name="parentFormName".....> <input type="text" id="userName" /> </form> ---------------------------------------------------------------------------------------------------------------

You can get all contacts exists in your gmail account using this program... First you will need the jar file  gdata  (library files for fetching data from google)... --------------------------------------------------------------------------------- public static  List<ContactDTO> getAllGmailContacts(String gmailId,String password) throws ServiceException, IOException {      InstrumentDTO contactDTO; String name; List<ContactDTO> myGmailContactList= new ArrayList<ContactDTO>(); ContactsService myService = new ContactsService("Find_Contacts_On_Gmail"); myService.setUserCredentials(gmailId, password);     URL feedUrl = new URL(" https://www.google.com/m8/feeds/contacts /"+gmailId+" /full ");         ContactFeed resultFeed = myService.getFeed(feedUrl, ContactFeed.class);           for (int i = 0; i < resultFeed.getEntries().size(); i++) {       ...

Here you can set the alarm using swing, see the code here ------------------------------------------------------------ package example.alarm; import java.awt.*; import java.awt.event.*; import java.text.SimpleDateFormat; import java.util.*; import javax.swing.*; class AlarmDemo extends Thread{ private JLabel timeLabel; public AlarmDemo(JLabel label){    this.timeLabel=label;}         public void run(){       while(true){          Date d=new Date();          int h=d.getHours();          String time="PM";          if (h>23){h-=24; time="AM";}          timeLabel.setText(""+h+":"+d.getMinutes()+":"+d.getSeconds()+"  "+time);          try{Thread.sleep(1000);}  catch(Exception e){}       ...

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