How to create an HTTP URLConnection with proxy in Java. Simple example including proxy authentication.

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How to Check Alexa Rank in Java using the undocumented API: http://data.alexa.com/data?cli=10&url=domainName. The code contains also the possibility of adding proxy settings

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JAXB Hello World Marshalling/Unmarshalling example: Object to XML and XML to Object.

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How to deep clone an object in Java. The clone method from the parent object needs to clone each child object separately and added to the cloned parent object.

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How to clone an object in Java. This method works only when the object cloned has only simple variable.

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How to loop a Map in Java. 6 different methods to loop through a map. The main difference is the looping method.

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