Saturday, March 26, 2011

Escape Special chracters in java

Following code escaps the special meaning of characters before showing in XML or in view

 public static String escapeText(String s) {
    if (s.indexOf('&') != -1 || s.indexOf('<') != -1
     || s.indexOf('>') != -1 || s.indexOf('"') != -1
     || s.indexOf('\'') != -1 ) {
      StringBuffer result = new StringBuffer(s.length() + 6);
      for (int i = 0; i < s.length(); i++) {
        char c = s.charAt(i);
        if (c == '&') result.append("&amp;");
        else if (c == '<') result.append("&lt;");
        else if (c == '"') result.append("&quot;");
        else if (c == '\'') result.append("&apos;");
        else if (c == '>') result.append("&gt;");
        else result.append(c);
      return result.toString();  
    else {
      return s;   

Tuesday, January 18, 2011

HTML 5 logo unveiled by W3C

HTML5Imagination, meet implementation. HTML5 is the cornerstone of the W3C's open web platform; a framework designed to support innovation and foster the full potential the web has to offer. Heralding this revolutionary collection of tools and standards, the HTML5 identity system provides the visual vocabulary to clearly classify and communicate our collective efforts.

W3C unveiled today an HTML5 logo, a striking visual identity for the open web platform. W3C encourages early adopters to use HTML5 and to provide feedback to the W3C HTML Working Group as part of the standardization process. Now there is a logo for those who have taken up parts of HTML5 into their sites, and for anyone who wishes to tell the world they are using or referring to HTML5, CSS, SVG, WOFF, and other technologies used to build modern Web applications. The logo home page includes a badge builder (which generates code for displaying the logo), a gallery of sites using the logo, links for buying an HTML5 T-shirt, instructions for getting free stickers, and more. The logo is available under "Creative Commons 3.0 By" so it can be adapted by designers to meet their needs.

Wednesday, January 5, 2011

Updating(Replace) anchor href values in a webpage

Using the jquery One can update attribute values of html elements in a simple steps .
The following jquery script will update the href value of all the anchor links those
 available in a web page to a static url

$('a[href]').attr('href', '');

This will be helpful for the situation like displaying the webpage content in a custom print preview page like so.
The following block will update all the href value in page without considering the element of the href value.

$('[href]').each(function () {
  $(this).attr('href', '');

Using *= filders with in [] we can filter the href url's.

Tuesday, January 4, 2011

Truncating(Clip) Excess text with Ellipsis in HTML5

      Text-overflow property in CSS gives the way to deal with the clipped text when the actual text content size is exceed the container box.
      'text-overflow' css attribute allows the text to be clipped when its exceed the allowed display area by setting text-overflow value as ellipsis, it will display ellipsis( three periods) following the clipped text.

            color: #eee;
            border: 1px solid #000000;
            overflow: hidden;
            width: 100%;
            text-overflow: ellipsis;
            white-space: nowrap;

To get this ellipsis effect when the content fall outside the box you may need to set the boxs overflow property to hidden or scroll and white-space  property to  'nowrap'.

If you have any comments or suggestions in setting ellipsis please leave a comment.

Wednesday, November 24, 2010

Generate a random alpha-numeric string in Java

By combinig use of Char array that having alphabets and numbers are an string of alphanumberic characters we can generate random alpha numberic strings in is the exampls code that generate random alpha numberic string for the given length.

     * Generates alpha numeric random number for the given length.
     * for this it accounts lowercase alpha characters(a-z) and numbers(0-9)
     * @param length length of the alpha numeric random to be generated.
     * @return resulting random alpha numeric string for the given length.
    public static String getAlphaNumbericRandom(int length) {
        //include lower case alpha(a-z) and numbers(0-9)
        String chars = "abcdefghijklmnopqrstuvwxyz0123456789";
        int numberOfCodes = 0;//controls the length of alpha numberic string
        String code = "";
        while (numberOfCodes < length) {
            char c = chars.charAt((int) (Math.random() * chars.length()));
            code += c;
        System.out.println("Code is :" + code);
        return code;

If we want to create 6 digit apha numberic random means we have call getAlphaNumbericRandom methods as


Wednesday, October 20, 2010

Format Source Code for Blogging

Here is the interface to change your source code for put in blogging environments. This escapes the html tags so you can display your source codes in blogs

Tab size: 2 4 8

Embed Stylesheet:

Copy the HTML below to your clipboard. Insert the HTML of your blog or wiki.

This is an example of what your text will look like.
    • Tabs are converted to spaces.
    • Quotes and other special characters are converted to HTML.
    • Everything is enclose in HTML's 'pre' and 'code' tags.
    • Style is set:
        • Fixed width font.
        • Shaded box.
        • Dotted line border.