How to convert String to int in Java using Integer.parseInt and Integer.valueOf methods. Simple example provided.

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How to generate entities from tables using EclipseLink. Simple example using one-to-one database relationship. @MappedSuperclass example included

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How to read and write files in Java using BufferedReader and BufferedWriter. The example highlights the classic resource release and try-with-resource approach.

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How to handle exceptions in Java. Checked and unchecked exceptions example using custom implementation.

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How to convert Java object to / from JSON string using Jackson library. Simple example including embedded object.

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How to convert Java object to / from JSON string using Gson library. Simple example including embedded object.

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