Happy Android Development with Gradle

Recently I have been working a lot on migrating android projects to use gradle building system. Seriously it is much better than the old time. I can easily use libraries on maven repositories and customize my building process. I also no long need to create a desperate project for testing. Awesome!

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Interview Practice Extra 06 – Vending Machine

Question This is an actual question I encountered in an Amazon phone interview in November 2013. You are going to design the money changing algorithm for a vending machine. That is, after any purchase, the machine makes change to users with a combination of coins. And the machine only have 3 types of coins: nickel…

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