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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Java – iText Write/Read PDF File Example – PdfReader + PdfWriter

In the tutorial, we show how to Write/Read PDF File with iText library.

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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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