Download Functional Programming Patterns in Scala and Clojure: Write by Michael Bevilacqua-Linn PDF
By Michael Bevilacqua-Linn
Clear up real-life programming issues of a fragment of the code that natural object-oriented programming calls for. Use Scala and Clojure to unravel in-depth issues of units of styles: object-oriented styles that develop into extra concise with practical programming, and natively sensible styles. Your code may be extra declarative, with fewer insects and decrease upkeep costs.
Functional languages have their very own styles that assist you resolve issues of much less code than object-oriented programming by myself. This ebook introduces you, the skilled Java programmer, to Scala and Clojure: useful, production-quality languages that run at the JVM and interoperate with current Java. through the use of either the statically typed, type-inferred Scala and the dynamically typed, sleek Lisp Clojure, you'll achieve a vast realizing of sensible programming.
For each one trend, you'll first see the normal object-oriented resolution, after which dig into the useful replacements in either Scala and Clojure. those styles are universal within the sensible global and should develop into a part of your problem-solving toolkit. at the object-oriented part, you'll see many universal styles, similar to Command, approach, and Null item. at the practical facet, you'll research middle sensible styles corresponding to Memoization, Lazy series, and Tail Recursion.
Each trend is helping you clear up a typical programming challenge. operating via them promises a collection of styles you should use to resolve difficulties you return throughout whereas writing courses. ultimately, you'll how to paintings your present Java code into new Scala or Clojure initiatives. you can begin off small, including sensible code bit by bit, so that you can supplement your current wisdom with Scala and Clojure as those languages achieve recognition at the JVM.
What You Need
Clojure 1.5 and Scala 2.10.Optionally, Eclipse with plugins.
Read or Download Functional Programming Patterns in Scala and Clojure: Write Lean Programs for the JVM PDF
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Extra resources for Functional Programming Patterns in Scala and Clojure: Write Lean Programs for the JVM
Sample text
Mac OS X Mac OS X comes with JDK version 5 already loaded. 14 | Chapter 2: Setting Up Your Android Development Environment 2. 3 or later. 4 (also known as Ganymede), since that package includes the required plug-ins mentioned in the next step. You want the version of the Eclipse IDE labeled “Eclipse IDE for Java Developers,” and obviously you want the version for your operating system. Eclipse will ask you to select a mirror site, and will then start the download. Windows (XP or Vista) The Eclipse download comes as a big ZIP file that you install by extracting the files to your favorite directory.
The available targets will be listed, and you can click on either the emulator or the phone, depending on which you’d prefer. Select the phone, and the application is downloaded (using the debug signature; more about application signatures in Chapter 7), and started on the phone. Most of the debug features available on the emulator (covered in detail in Chapter 5) are also available when running in debug mode on the phone. Summary We’ve looked at this more realistic application in some detail to understand the procedures you’ll need to follow when developing your own application.
The bin directory is where Eclipse puts the compiled class files for each of your Java source files (the ones in src). You can see all of these files if you list the directory of the root folder, but you don’t really need to pay any attention to them, because Eclipse will do it all for you. mjandroid. Eclipse lays out the equivalent directory structure, just as it would for any Java project, and shows you the whole thing when you open src. In addition to these package folders, there is a folder named for the package that contains all the Java files for the project.