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  • Subinkrishna Gopi 10:43 am on August 24, 2012 Permalink |
    Tags: code, , , jquery, , ,   

    Today’s read: Useful jQuery Function Demos For Your Projects 

    Smashing Magazine

    This one is a real good one. This article from Smashing Magazine gives you a very high level view of what jQuery can do. A real good starter for those who want to try out the possibilities of jQuery in their projects.

    Every aspiring Web developer should know about the power of JavaScript and how it can be used to enhance the ways in which people see and interact with Web pages. Fortunately, to help us be more productive, we can use the power of JavaScript libraries, and in this article we will take a good look at jQuery in action.

    Source: Smashing Magazine / Useful jQuery Function Demos For Your Projects

    Have a good read and make your hands dirty.

    Advertisements
     
  • Subinkrishna Gopi 8:17 pm on July 2, 2012 Permalink |
    Tags: code, input, io, , , output,   

    My most favorite methods – part 2 

    Okay, here’s the second one. And it took me a few months to write this one 😛

    /**
     * Copies from an {@link InputStream} to an {@link OutputStream}
     *
     * @param from
     * @param to
     */
    public static void copyStream(InputStream from, OutputStream to)
    {
    	byte[] contents = null;
    	int count = -1;
    
    	if ((null != from) && (null != to))
    	{
    		try
    		{
    			contents = new byte[1024];
    			while (-1 != (count = from.read(contents)))
    			{
    				to.write(contents, 0, count);
    			}
    		}
    		catch (Exception e)
    		{
    			e.printStackTrace();
    		}
    		finally
    		{
    			contents = null;
    		}
    	}
    }
    

    This method copies the contents from the input stream to the output stream. Do I need to explain more?

     
    • Andy Res 9:14 pm on July 2, 2012 Permalink

      It’s funny the way how you write the condition in the if and while loop, like you are checking the “null” and “-1” against your variables, which seems unusual for me. 🙂
      I would write instead if(from!=null), and while((count=from.read(contents))!=-1) ..

    • Subinkrishna G 11:09 am on July 3, 2012 Permalink

      This is one practice that I follow from beginning 😉

  • Subinkrishna Gopi 4:37 pm on April 10, 2012 Permalink |
    Tags: code, favorite, ,   

    My most favorite methods – Part 1 

    This is my most favorite/commonly used/useful method. This method checks if the given string is valid or not.

    /**
    * Checks if the given string is valid or not.
    *
    * @param aString
    * @return {@code true} if {@code aString} is not {@code null} and if it's
    *         'trimmed' length is more than 0, else {@code false}
    */
    static boolean isValidString(String aString)
    {
       return ((null != aString) && (aString.trim().length() > 0));
    }
    
     
    • Stuart 4:48 pm on April 10, 2012 Permalink

      I prefer the StringUtils.isNotBlank() from org.apache.commons-lang3

      Also, you shouldn’t really be comparing strings with “!=” or “==” should you?

    • Subinkrishna G 11:15 am on April 18, 2012 Permalink

      I am not a big fan of Apache Commons 😉 Yes, I agree that we should not compare the strings using ‘!=’or ‘==’. But here I am not comparing the strings, in fact I am doing a null check.

    • Stuart 11:39 am on April 18, 2012 Permalink

      Personally I think having all the little helper functions lumped into one place is quite useful, but then I write a lot of small programs, so having easy access to lang3 with maven does make my life a little easier!

      Doh! of course, null comparison, point taken 🙂

  • Subinkrishna Gopi 4:17 pm on November 24, 2011 Permalink |
    Tags: code, groovy, hello world, , scripting   

    Hello, Groovy! 

    My new job demands me to learn a lot of new things that I never wanted to! Today I wrote my first ever Groovy script. And it compiled and run! Awesome 🙂

    package subin.groovy;
    
    /**
     * Hello, World!
     *
     * @author Subinkrishna Gopi
     */
    class HelloWorld
    {
    	static def aString = "Hello, World!"
    	static void main(args)
    	{
    		println("${aString.toUpperCase()} it's a nice day today :)")
    	}
    }
    
     
  • Subinkrishna Gopi 2:41 pm on October 5, 2011 Permalink |
    Tags: code, database, db2,   

    An encounter with DB2 – How to apply “limit” to queries? 

    My new assignment wanted me to experiment with DB2. And like everyone else who is new to DB2, I couldn’t find a way to limit the result set! After a lot of googling and phone calls I ended up with a stupid solution – but it works.

    The solution looks like this:

    SELECT * FROM
    	( SELECT ROW_NUMBER() OVER (ORDER BY column_to_be_sorted) AS rownumber, col1, col2, other_cols
    	  FROM my_db2_table WHERE col1 = ‘something’ )
    AS tmp_table
    WHERE rownumber BETWEEN start_index AND end_index
    

    I hope this helps. But I really wish if there was some better ways.

     
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