How to sort objects with Comparable and Comparator in Java. Primitive array and list sorting. Java Object sorting with Comparable and Comparator.

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

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How to decompress files from ZIP format using Java. The example will unzip all files to a specific folder.

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How to compress files in ZIP format using Java. The example takes a folder or file and adds all the files and sub-folders.

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How to copy a directory and all sub-directories or files in Java. The recursive method used to traverse all the subdirectories.

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How to copy files in Java with three examples: Classic method with streams, using FileChannel class and using Files class.

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