Category: Lifehacks

Does Bootstrap tooltip plugin supports custom HTML? If true, HTML tags in the tooltip’s title will be rendered in the tooltip. In practice, this is used to also apply tooltips to dynamically added DOM elements ( jQuery. on support). See this and an informative example. What does it mean to toggle an element’s tooltip? Toggles […]

Why does my screen zoom in when I move my mouse? As it turns out, one of the most common causes that will trigger this kind of behavior is a stuck CTRL-key. If you didn’t know, if you press any of the CTRL keys and scroll upwards or downwards, the mouse’s scroll will produce zooming. […]

How is thread migration used to overcome intermittent failure? Thread migration is another technique used to overcome intermittent failure. A thread is an ordered set of instructions that tells a computer exactly what to do. Why are there so many problems with threading? Many threading problems center on accessing or sharing data between threads. One […]

Which is better BufferedReader or Scanner? BufferedReader has significantly larger buffer memory than Scanner. BufferedReader is a bit faster as compared to scanner because scanner does parsing of input data and BufferedReader simply reads sequence of characters. How to convert a string to an InputStream in Java? In Java, we can use ByteArrayInputStream to convert […]

How do I sort specific rows in Excel? Select any cell within the range you want to sort. On the Data tab, in the Sort & Filter group, select Custom Sort. In the Custom Sort dialog box, click Options. Under Row, in the ‘Sort by’ drop down, select the row that you want to sort. […]

Is blank and NULL same? Answer: Null indicates there is no value within a database field for a given record. It does not mean zero because zero is a value. Blank indicates there is a value within a database but the field is blank. IS NULL THEN 0 in SSRS? If your field is returning […]

Can you call Oracle store procedure from CodeIgniter? Codeigniter is a nice framework and it’s support for oci8 is promising. Being inspired I started a project with Codeigniter and Oracle. But on the fly I started facing some problems. When i call store procedure from Codeigniter it gives me error. And the major problem is […]

How to find RSS feed of a particular website? You need to loop through all urls on your website and then find one that’s containing “rss”. Method above maybe won’t work in some cases if url in href tag looks something like feed.xml, so in that case you’ll need to loop through all tags containing […]

Is bash the same as batch? Bash is actually a shell in UNIX/Linux. Batch files (or batch jobs) are usually referred to files containing list of commands executed periodically (daily, weekly, etc). You can write batch jobs in any language (example, Python, PHP, Perl, Shell script ). Bash shell also supports scripting. How do I […]

How to create a timer thread in Android? 1.) Create a new project by File-> New -> Android Project name it TimerThreadExample. 2.) Write following into main.xml: 3.) Run for output. 1.) Create a project named TimerThreadExample and set the information as stated in the image. Package Name: com. example. Can a timer update the […]