Himanshu Sharma

Solid Design Patterns – Open closed principle

Himanshu Sharma — Thu, 26 Jul 2018 14:18:05 +0000

Solid Design Patterns – Open Closed Principle Open Closed Principle In object-oriented programming, the Open Closed Principle states “software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification”; that is, such an entity can allow its behaviour to be extended without modifying its source code. Quick recap, SOLID stands for five…

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Solid Design Patterns – Single responsibility principle

Himanshu Sharma — Tue, 24 Jul 2018 17:31:31 +0000

Solid design patterns – Single responsibility principle Here we are going to discuss “Single responsibility principle”. Single responsibility principle: “A class should have one and only one reason to change, meaning that a class should only have one job.” Recently I was reading a book “Clean Code” by Robert C Martin. It is a really…

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Some how-to using Htaccess

Himanshu Sharma — Thu, 10 Jul 2014 10:59:22 +0000

Some how to using Htaccess: How to protected SVN Directories with HTACCESS File This line in the “.htaccess” file will protect all SVN directories (“.svn/”): <IfModule mod_rewrite.c> RewriteRule ^(.*/)?\.svn/ - [F,L] IfModule> The flag “F” means forbidden, and the “L” flag means the last rule to be used if this rule is used. “-” is…

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Efficient Way to handle deep paging in Solr 4.7

Himanshu Sharma — Wed, 09 Jul 2014 10:14:08 +0000

Efficient Way to handle deep paging in Solr 4.7 One thing Solr has never been very efficient at is a problem that people refer to as “Deep Paging”. What is the Deep Paging? What is Deep Paging: Imagine the following problem – we have an application that expects Solr to return the results sorted on…

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Rail Budget: Not a single thing for Udaipur (Mewar)

Himanshu Sharma — Tue, 08 Jul 2014 14:56:20 +0000

Rail Budget: Not a single thing for Udaipur (Mewar) Nobody mention of Udaipur-Ahmadabad gauge conversion Rail Ministry, which had been a highly politicized department of the Central Government for past couple of decades, presented its Indian rail budget today. It was bound to be a complex situation for the Rail Minister Sadananda gowda not only…

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Searching an Element in a Rotated Sorted Array

Himanshu Sharma — Thu, 17 Apr 2014 12:49:19 +0000

What is Rotated Sorted Array It is nothing but a sorted array, which is twisted/rotated with some pivot element. So if you observe rotated array then it can be classified as two sub-array that is sorted. For example your sorted array A: A = { 0,1,2,3,4,5,6,7,8,9 } and your rotated sorted array look like this:…

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Painless Vaccine is Banned

Himanshu Sharma — Fri, 28 Mar 2014 14:13:22 +0000

PAINLESS PENTAXIM VACCINE IS BANNED! hello everyone, Yesterday we went to vaccinate our little angel against DTaP, HiB & Polio.This was her first dose of it. i was relaxed of the pain and fever she may have to suffer because of painless vaccines (PENTAXIM,invented in 1997) available in market. As and when we demanded for…

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How to generate a random, unique string using numbers and letters

Himanshu Sharma — Wed, 26 Mar 2014 14:13:19 +0000

While creating API for Android App, i came across with very simple but difficult (for me) problem. How would it be possible to generate a random, unique string using numbers and letters for verfiy user, Something like api_key which is unique to user but at the same time it shuold be safe and it will…

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Subfolders v/s Subdomains: Which one to choose for SEO?

Himanshu Sharma — Wed, 12 Mar 2014 10:39:49 +0000

Subfolders and Subdomains have their own pros and cons if viewed from business viewpoint. However, these day’s website owners more interested in focusing their efforts on SEO. Which one to choose Subfolder or Sub Domain for my blog promotion? If you are thinking of launching a new blog, then using a sub-folder will bring better…

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How to Compress and Unpack an directory in Linux?

Himanshu Sharma — Tue, 11 Mar 2014 09:31:13 +0000

For compress file or directory, GNU tar command is best for this work. It can be use on remote Linux or UNIX server. It does two things for you: – Create the archive – Compress the archive Following is syntax of the tar command: tar -zcvf archive-name.tar.gz your-directory-name Where, -z: Compress archive using gzip program…

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