Scala introduction
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for Sayeret Lambda January 2011 meeting
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Scala introduction
- 1. Introduction http://www.scala-lang.org Sayeret Lambda January 2011 Yardena Meymann
- 12. Imagine
- 20. First-class Functions val romanNumeral = Map(1 -> "I", 2 -> "II", 3 -> "III", 4 -> "IV", 5 -> "V") An object with apply method can be used as a function val inc = (x: Int) => x + 1 inc(1) 2
- 21. No “Java Bean” Boilerplate Java public class Person { private String name; private int age; public Person(String name, int age) { this.name = name; this.age = age; } public String getName() { return name; } public int getAge() { return age; } public void setName(String name) { this.name = name; } public void setAge(age: int) { this.age = age; } } Scala class Person( var name: String, var age: Int)
- 29. Traits for Multiple Inheritance val order = new Order(customer) with Entity with InventoryItemSet with Invoicable with PurchaseLimiter with MailNotifier with ACL with Versioned with Transactional