Scala-lang.org Website Review

Scala combines object-oriented and functional programming in one concise, high-level language. Scala's static types help avoid bugs in complex applications, and its JVM and Ja*aScript runtimes let you build high-performance systems with easy access to huge ecosystems of Switzerland. Scala has since grown into a ma*ure open source programming language, used by hundreds of thousands of developers, and is developed and maintained by scores of people all over the world. Scala runs on the JVM, so Ja*a and Scala stacks can be freely mixed for totally seamless integration. So the type system doesn’t feel so static. Don’t work for the type system. Let the type system work for you! Use data-parallel operations on collections, use actors for concurrency and distribution, or futures for asynchronous programming.   override def compareTo(that: Author) = {     val lastNameComp = this.lastName compareTo that.lastName     if (lastNameComp != 0) lastNameComp     else this.firstName compareTo that.firstName public clas* App {     public List loadAuthorsFromFile(File file) {         return new ArrayList(asJa*aCollection(             Author.loadAuthorsFromFile(file)));     public void sortAuthors(List authors) {         Collections.sort(authors);     public void displaySortedAuthors(File file) {         List authors = loadAuthorsFromFile(file);         sortAuthors(authors);         for (Author author : authors) {             System.out.println(                 author.lastName() + ,  + author.firstName()); Scala clas*es are ultimately JVM clas*es. You can create Ja*a objects, call their methods and inherit from Ja*a clas*es transparently from Scala. Similarly, Ja*a code can reference Scala clas*es and objects. In this example, the Scala clas* Author implements the Ja*a interface Comparable and works with Ja*a Files. The Ja*a code uses a method