IT Knowledge Sharing | Interview questions

is it overloading? will it compile, if not then why ?   public void show(String a){     //.....     //...   }    public int show(String a){     //.....     //...    }   Solution: It is not mothod overloading as argument list must be different. It will not compile and compiler will give duplicate method error.

A self-join is used when a table is joined (compared) to itself.  It means when you need to compare values in a column with other values in the same column in the same table.  Use of self-joins:  obtaining running counts and running totals in an SQL query.  Example: select emp1.name,emp1.salary,emp1.state   from employee emp1,employee emp2   where emp1.state=emp2.state;   ---------------------------------------------------   Name                     Salary          State   ---------------------------------------------------   Rajesh Singh           10250            Delhi   Kavita                     10850...

Use split and join method... var myText="Hello \I\am java\script"; alert(myText. split('\\').join(' ') );

<select id="myCombo" onchange="moreOptions()">       <option value="-1" selected="selected">Select options</option>       <option id=" myCombo _1" value="1">One</option>       <option id=" myCombo _2" value="2">Two</option>       <option id=" myCombo _3" value="3">Three</option>    </select>  Javascript to reset onChange() method... function moreOptions(){ var selectedOption=document.getElementById(" myCombo ").value; if(selectedOption=="1"){ .......... }else if(selectedOption=="2"){ ........ }else if(selectedOption=="3"){ ....... }else{           document.getElementById("   myCombo   ").selectedIndex="0";   //reset combox box with "Select options"         } }

If you want to create a message notification div with auto hide property using jquery, see the code here Add this to your java script code...  $(document).ready(function() { $('#messageDiv').delay(5000).fadeOut('slow');   }); ----------------------------------------------------- <style  type="text/css" > notificationDiv{   background: #FCFFB2;    color: white;   font-size:13px;    font-weight:bold;     padding-top: 3px;    text-align:center;     width:300px;      height:20px;      } </style> And create div where you want to show in your page...     <div id=" messageDiv   " class="notificationDiv" >     This is a notification div </div>          

Screen flickers in android devices while works fine in iPhone We are using HTML5 and jquery mobile, when we use page transitions like slide or pop etc, it works fine in iPhone but if we use android phone, screen flickers during page transition.. We have also used stack overflow solutions like ui-page { -webkit-backface-visibility: hidden; } But this is no working yet...

If you want to highlight a row on click, include jquery js at your head tag and add following... <style type="text/css">          tr.walkRows td {        background: #D7DF23;     }   </style> <script type="text/javascript">  $(document).ready(function() { $('tr').click(function () {      $(this).toggleClass('walkRows');     });    }); </script>