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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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You can add a line separator using div .... .line_seperator{        border-left: 2px solid #B1B1B1;     height: 150px;     margin-left: 150px;     margin-top: -35px;     width: 2px; } Here border-left: will add a line.. Even you can use border-right, border-top and border-bottom and then you can arrange your the width of your div.

Here is the example where you can get current time and date using frame in swing import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.text.SimpleDateFormat; import java.util.Calendar; public class DateTimeDemo extends JFrame implements ActionListener{    public static final String DATE_FORMAT_NOW = "dd-MM-yyyy HH:mm:ss";    public static String dt;       JTextField dateField= new JTextField(20);    JButton jb=new JButton("Submit");    public DateTimeDemo() {      super("Current date and time demo");      JLabel label1 = new JLabel(" Your current time: ");                        JPanel contentPane = new JPanel(new FlowLayout());      contentPane.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));      contentPane.add(label1);      conte...

If you are using JQuery and you have created a table and you want to delete it's row dynamically then you can use following code. $(document).ready(function() {     $("# DemoTable  tr").click(function() {             $(this).remove();         }); }); Here  DemoTable is the html Id attribute. So when you will click on the div containing particular row, it will be deleted. For example if you are using table like.. <table id="DemoTable" > <tr>     <td  width="25%"> </td>    <td  width="75%"> </td> </tr> <tr>     <td  width="25%"> </td>    <td  width="75%"> </td> </tr> </table>

import java.io.FileNotFoundException; import java.io.FileOutputStream; import com.itextpdf.text.BadElementException; import com.itextpdf.text.Document; import com.itextpdf.text.DocumentException; import com.itextpdf.text.Element; import com.itextpdf.text.Image; import com.itextpdf.text.PageSize; import com.itextpdf.text.Paragraph; import com.itextpdf.text.Phrase; import com.itextpdf.text.pdf.PdfContentByte; import com.itextpdf.text.pdf.PdfPCell; import com.itextpdf.text.pdf.PdfPTable; import com.itextpdf.text.pdf.PdfWriter; public class GeneratePDFWithImageDemo {   public static void main(String[] args) {          new GeneratePDFWithImageDemo().createPDF();   }   public void createPDF(){  Document document = new Document();       try {         PdfWriter.getInstance(document,          new FileOutputStream("C://Test.pdf"));         docu...

Information-Window: Basic Java Syntax and Rules : Basic Java Syntax If we talk about the Java syntax, Than a basic will cover a Object name referring to an instance with a dot o...

If you want to change the div background then use, document.getElementById("divIdName").style.background='#D6DE26'; Similarly, you can change div's text color dynamically using as  document.getElementById("DivIdName").style.color='#00AEEF';

org.hibernate.PropertyValueException: not-null property references a null or transient value: com.example.server.beans.User.createdOn at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72) at org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:270) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:128) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:196) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) at com.example.persistence.dao.impl.HibernateBaseDAO.saveObject(HibernateBaseDAO.java:88) at com.example.persistence.dao.impl.RegisterUserDAO.saveR...