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Advanced Java Programming

Understanding I/O in Java

From the course: Advanced Java Programming

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  • Course details

    Want to get more out of the Java language and platform? In this platform- and framework-neutral course, instructor Bethan Palmer digs into some of the language’s more advanced features, helping you expand your programming skills as she equips you with techniques you can use when building applications anywhere Java is used: in web, mobile, and desktop applications. Bethan covers a variety of topics, including generics, working with the Collections Framework, and functional programming. Plus, learn about I/O in Java, working with files and directories, and structuring applications using the modular system available in Java.

    Instructor

    • Click here to view Bethan Palmer’s instructor page

      Bethan Palmer

      Software Developer and Java Champion

      Bethan Palmer is a developer who loves technology and has a master's degree in computer science.

      For her day job, Bethan is a Java programmer and the product manager for a Java PDF library at IDRsolutions. She gets to spend a lot of time writing and refactoring code, as well as deciding on product strategy and road maps.

      She also spends much of her time attending conferences and is a regular speaker at Oracle Code One and NetBeans Days. She manages and writes articles about Java, technology, the books she's reading, and conferences she's attending on the Java PDF blog.

    Skills covered in this course

  • Learn advanced Java programming

    - [Instructor] Streams are a way of reading data or writing data. There are lots of different use cases for using streams and they are used more often than you might think. Even a simple Hello World application uses them. When you have a system.out.println statement, this is actually using an output stream to print out the text. They are also used for other things like reading and writing files in a program, taking user inputs from the console, and communicating through sockets. Streams represent a flow of data and a bit like real streams of water, they can only go in one direction. Output streams write out data and input streams read in data. If you wanted to have data going two ways, you would need two separate streams. There are two core abstract classes in Java Streams API, InputStream and OutputStream. As these are abstract classes, you can't instantiate them, but they each have several concrete implementations for handling different types of data. For example, concrete…

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