How to make a LED blinking on Raspberry Pi using Java. Simple sample code using pi4j library.

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Junit 3 vs Junit 4 Comparison. Junit 4 is introducing new features like annotations, static import, timeout.

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This tutorial presents log4j 1.2.x basic examples. How to log a message and an exception.

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log4j.properties basic examples. Output to the console and to the file.

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How to send emails using JavaMail. Simple example using a gmail account and proxy settings if needed.

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GET/POST request tutorial using Apache HttpClient. The tutorial is using httpbin.org test server.

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