The Art of Programming

The Gson missing recursive get function - Review. A while back, probably more than a year ago, I wrote an article Gson's Missing recursive get function  where I discussed the shortcomings of the current gson get function, whereby it only traverses top-level entry key for the search key. In this article I'll introduce a new functionality that allows for even deeper traversal of same name nodes until a primitive value is found (if needed). {      "result"   :   {          "total_items"   :   1 ,          "total_pages"   :   1 ,          "items_per_page"   :   25 ,          "current_page"   :   1 ,          "items"   :   {                  "username"   :   "test" ,                  "items"   :  {                   items: "12345"                 },                  "secret"   :   "" ,                  "application"   :

The term MapReduce actually is a compound word, which simply is a programming model/architecture used for processing large data sets in parallel, normally in a distributed setting. Image Sourced from : https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkIa1Hh1GzJ-2yyiUOMsSuAptPuXWcI6blhfCE0gXZ4zCggqQKnqkYmQwuJOTZOwDXsif5UWfrpnCmMKoSGTzk8wLgvJt1MeZbr5YBMh5pgnIeNcHyM5frpDW35UcYNUgjgSrMKBcY9oVr/s1600/WordCountFlow.JPG The above figure shows the typical phase in a MapReduce program. Phase 1 : In the initial phase the file contents are been read by the program into an InputStream. Phase 2 : In  this phase  (Some applications will combine phase 2 & 3 (mapping)) each line of the input file is read into a separate mapper instance that will be executed in parallel, sometimes in a distributed setting. Phase 3 : In this phase e ach line from the previous phase is then fed into a Map function that tokenize each term/data item  and thereby converting it into

What is a Leap Year (Wikipedia Definition) A  leap year  (or  intercalary  or  bissextile year ) is a year containing one additional day (or, in the case of  lunisolar calendars , a month) in order to keep the  calendar year  synchronized with the  astronomical  or  seasonal year . Because seasons and astronomical events do not repeat in a  whole number  of days, a calendar that had the same number of days in each year would, over time, drift with respect to the event it was supposed to track. By occasionally inserting (or  intercalating ) an additional day or month into the year, the drift can be corrected. A year that is  not  a leap year is called a  common year .   [1] Leap Year Algorithm Below a simple algorithm for determining a leap year is introduced. if year is divisible by 400 then is_leap_year else if year is divisible by 100 then not_leap_year else if year is divisible by 4 then is_leap_year else not_leap_year How to Determi