Java – Convert Excel File to/from JSON (String/File) – using Apache Poi + Jackson

In the tutorial, Grokonez shows how to convert Excel File to JSON String or JSON File and vice versa with Java language by examples.

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Java – Convert CSV File to/from JSON (String/File) – using Commons-CSV + Jackson

In the tutorial, Grokonez shows how to convert CSV File to JSON String or JSON File and vice versa with Java language by examples.

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Compress String with Run Length Encoding in Java

In this Java example, we’re gonna know how to compress String in Java with Run Length Encoding (RLE) method.

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Jackson JSON – Rename Properties with @JsonProperty, @JsonSetter and @JsonGetter example

In this tutorial, we’re gonna look at ways to rename Properties of a Class using @JsonProperty, @JsonSetter and @JsonGetter.

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How to write Text File in Java by BufferedWriter

Java provides a BufferedWriter for writting content to File with high performance when performing with large number of write action. Because BufferedWriter decreases I/O interaction by using internal buffer to write data into File.
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