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Scala: Collections 1

This post contains some info on Scala’s collections. Problem? We want a function that will take an List of Rugby players as input and return those players names that play for ...
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Structural (or) Type Safe Duck Typing in Scala

Structural typing as defined by Wikipedia “A structural type system (or property-based type system) is a major classof type system, in which type compatibility and equivalence are ...
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Loan pattern in Java (a.k.a lender lendee pattern)

This post is about implementing loan pattern in Java. Use Case Implement separation between the code that holds resource from that of accessing it such that the accessing code doesn’t ...
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SpiderMonkey to V8 for MongoDB and mongometer

With 10gen switching the default JavaScript engine for MongoDB 2.3/2.4 from SpiderMonkey to V8 I thought I’d take the opportunity to compare the relative performances of the releases ...
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Spring MVC 3: Upload multiple files

It was just another long day at office with the database not available and one of the team members lagging by a week now. So, we had to work as a team to get it delivered. In Spring ...
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Spring Data JDBC generic DAO implementation – most lightweight ORM ever

I am thrilled to announce first version of my Spring Data JDBC repository project. The purpose of this open source library is to provide generic, lightweight and easy to use DAO implementation ...
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Effective Logging in Java/JEE – Mapped Diagnostic Context

It all started when i was sitting with a colleague to resolve some application issue, when i noticed something interesting. He was merging the code and my eyes caught the attention ...
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Android TextView with custom fonts

While developing an android app I found that everytime I was trying to use a custom font on a TextView I copied the same lines:                   TextView ...
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Probability distribution for programmers

This is one of these very simple programming puzzles I came across recently: given a function returning random integers from 0 to 4 inclusive with equal probability, write a function ...
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OAuth 2.0 Bearer Token Profile Vs MAC Token Profile

Almost all the implementation I see today are based on OAuth 2.0 Bearer Token Profile. Of course its an RFC proposed standard today. OAuth 2.0 Bearer Token profile brings a simplified ...
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