programming_languages:scala

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programmiersprachen:scala [2015/10/10 22:31] – [for loop] phreazerprogramming_languages:scala [2017/02/19 15:46] (current) – ↷ Seite von programmiersprachen:scala nach programming_languages:scala verschoben phreazer
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-Scala+====== Scala ======
  
-**Sca**lable **la**nga 
  
-====== Start ======+**Sca**lable **la**nguage 
 + 
 +===== Start ===== 
  
   * No primitive types, everything is an object   * No primitive types, everything is an object
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-===== Hello World =====+==== Hello World ====
 <code scala> <code scala>
 object HelloWorld { object HelloWorld {
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 <code scala> <code scala>
  
-//+// different steps
 for (i <- 4 to (17,3)) println(i) for (i <- 4 to (17,3)) println(i)
 // other data types than int // other data types than int
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 </code> </code>
  
-==== Singleton objects ====+===== Singleton objects =====
  
 There are no static methods/vars in scala and singleton objects can't be constructed using a constructor with new. There are no static methods/vars in scala and singleton objects can't be constructed using a constructor with new.
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 </code> </code>
  
-==== Companion object ====+===== Companion object =====
  
 Prerequisite: object and class have the same name and are defined in the same file. Companion objects can access their private variables. Singleton objects without companion clases are standalone objects. Prerequisite: object and class have the same name and are defined in the same file. Companion objects can access their private variables. Singleton objects without companion clases are standalone objects.
  
-==== Case classes ====+===== Case classes =====
  
   * Use a factory method for construction   * Use a factory method for construction
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 </code> </code>
  
-==== Inheritance ====+===== Inheritance =====
  
-Scala don't supports multiple inheritance.+Scala doesn't support multiple inheritance.
  
 class B(arg:Int) extends A {} class B(arg:Int) extends A {}
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-=== Abstract classes ===+==== Abstract classes ====
  
 Difference to Traits: Abstract classes can have constructors. A class which inherits from an abstract class can't inherit from another. Difference to Traits: Abstract classes can have constructors. A class which inherits from an abstract class can't inherit from another.
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 The usage of override is optional. The usage of override is optional.
  
-=== Packages object ===+==== Packages object ====
  
 Objects which are visible in a whole package. Objects which are visible in a whole package.
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-=== Identity and equality ===+===== Identity and equality =====
  
 ==-Operator checks equality (identity in Java) ==-Operator checks equality (identity in Java)
  • programming_languages/scala.1444509080.txt.gz
  • Last modified: 2015/10/10 22:31
  • by phreazer