Author: pingpingdsp
Reading Hunter For June 2016
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Java Collections summary
Singleton Design Pattern
Sharpen the knowledge of algorithms
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10 Questions about Android Activity Life Cycle without Answers
Reading Hunter For May 2016
How to start a Service at boot in Android
![](https://digitppwordpresscom.wordpress.com/wp-content/uploads/2016/03/architecture-android-operating-system.png?w=590&h=551&crop=1)