log4j.properties basic examples. Output to the console and to the file.

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Java 8 forEach examples. Map and list loop using lambda, method reference, stream and filter.

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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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How to compare dates in Java using Date (compareTo, before, after, equals), Calendar(before, after, equals) and LocalDate(isBefore, isAfter, equals) classes.

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How to get input from Java Console. Examples using System.console, Scanner and BufferedReader + InputStreamReader.

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How to work with java Properties files. Properties files are key values file. The tutorial contains both read and write examples.

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