#Java Show Case #####by Miguel Olave (www.molavec.com)

#Motivation Here is a showcases to re-use example codes that show how to solve different problems or shows how to use some typical libs. I hope to accelerate the learning curve, use typical design-patterns or avoid wasted time to recover ways to do things from old useful code, all in a formal way to do it that could be useful to share knowledges in working teams.

In a simple phrase: "It's not about reuse the code, it's about reuse the learning".

###Pure Java In this showcase I use pure Java libs, avoiding use frameworks or big pieces of codes. Keep it simply to solve simply!

###Why I am not use JUnit? The main aim of unit test is check reusable code and libs. In this concept I am not trying to generate reusable code. Instead, I want to get a start point of how to use code reusable code. To avoid many instructions to get run code I use the power of Gradle to simplify how to run successfully code.

#How to use

Require

• Java 8
• gradle 2.4 (For an easy install use GVM Tool.

Console

Download all showcase!!

$ git clone https://github.com/molavec/java_showcase.git

Execute!!

$ cd  [Path]
$ gradle build
$ gradle -q [task]

Example:

$ cd commandLine
$ gradle build
$ gradle -q cmdline01

Chekout build.gradle to know about which class is used by the task.

#Showcases (projects) implemented

####Java Basic #####[Path: basics]

[task]	Description
poo01	Object Oriented Programming Simple example how to use Classes.
poo02	Object Oriented Programming Simple example how to use Heritage.
poo03	Simple Example about static variables.

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####Command Line #####[Path: commandLine]

[task]	Description
cmdline01	Simple example how to use command line arguments.
cmdline02	Multiple Arguments and Options Management
cmdline03	an example of how to use Options Management with Apache Commons CLI

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####Communication Protocols #####[Path: communicationProtocols]

[task]	Description
serial01	Simple serial communication example using org.scream3r.serial

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####Design Patterns #####[Path: designPattern]

(more info: tutorialspoint.com)

[task]	Description
dp01	Factory Pattern
dp02	Abstract Factory Pattern
dp03	Singleton Pattern
dp04	Builder Pattern
dp05	Prototype Pattern
dp06	Adapter Pattern
dp07	Data Access Object Pattern

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####Encription #####[Path: encryption]

[task]	Description
encrypt01	A simple MD5 example using java.security.* package.

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####Encription #####[Path: events]

[task]	Description
event01	A simple timer example using ScheduledExecutorService and ScheduledFuture from javapractices.com
event02	A simple timer example using Timer and TimerTask from javapractices.com

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####Logger #####[Path: logger]

[task]	Description
logger01	A simple example using SFL4J y LOG4J.

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####Persistence #####[Path: persistence]

[task]	Description
persistence01	Simple Text file Reader.
persistence02	Example of how to serialize an Object.
persistence03	Modify an OpenOffice .ods file with JOpenDocument.
persistence04	Simple example how to read a properties file.
persistence05	Simple example how ro write in a properties file.
persistence06	Simple example how ro write in a json file using gson library.
persistence07	Simple example how ro read in a json file using gson library.
persistence08	Simple example how use JPA.

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####Random #####[Path: random]

[task]	Description
random01	Genera números aleatorios utilizando el paquete org.apache.commons.math3.random

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##Troubleshooting

• Could not find method jcenter() for arguments [] on repository container

Install the last gradle version. check if you current version it over 1.7 with 'gradle -version'

##Do you want to contribute?? Contact me at @molavec

##TODO

• In enryption make an example with apache.shiro
• automatize javadoc