How to sleep a thread in Java using Thread.sleep() method. Comparison between sleep millis an nanos.

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How to connect to MySQL database with MySQL JDBC driver. Get a new connection using DriverManager class.

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How to create Builder Design Pattern in Java using simple example and comparison with classic instantiation.

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How to create directory in Java using File.mkdir() and File.mkdirs() methods. Contains multiple examples.

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How to convert a InputStream object to String object in Java using BufferedReader and InputStreamReader classes.

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How to get free disk space in Java using File.getFreeSpace(), File.getTotalSpace() and File.getUsableSpace().

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