Scala Programming Examples

Compile and Execute Scala Online

scala

object HelloWorld {
   def main(args: Array[String]) {
      val Salaries = List(1000,2000,3000)
      val out = Salaries.map(x => x + 200)
      for ( a <- out){
          println("my value is " + a)
      }
   }
}

Compile and Execute Scala Online

scala

object HelloWorld {
   def main(args: Array[String]) {
      println("Hello, world!")
   }
}

Compile and Execute Scala Online

scala

object HelloWorld {
   def main(args: Array[String]) {
      val l = List(1,2,3,4)
      val x = l.:+(6)
      val y = List(9) :: x
      println(y.getClass())
      
       val mainList = List(3, 2, 1)
 val with4 =    4 :: mainList  // re-uses mainList, costs one :: instance
 val with42 =   42 :: mainList // also re-uses mainList, cost one :: instance
 val shorter =  mainList.head  // costs nothing as it uses the same 2::1::Nil instances as mainList
 println(shorter)

 println("---------------")
 
    val a = List(1,2,3,4)
    val b = (5 /: a)(_*_)
    val c = (a :\ 5)(_*_)
    println(b + " " + c)
    
 println("-------------- copy to array example")
    
    
   }
}

Runi

scala

object HelloWorld {
   def main(args: Array[String]) {
      println("Hello, world!")
      for (arg<-args)
         println(arg)
   }
}

Compile and Execute Scala Online

scala

class checkEven(){
    def isEven(n: Int) = {
        if(n%2 == 0)
        println("Even")
        else 
        println("Odd")
    }
}

object IsEvenClass{
    
    def main(args: Array[String]){
        val e1 = new checkEven()
        println("hello world")
        e1.isEven(3)
        
       
    }
}

Hello

scala

object HelloWorld {
   def main(args: Array[String]) {
      println("Hello, world!")
   }
}

Point

scala

object HelloWorld {
   def main(args: Array[String]) {
      println("Hello, world!")
   }
}

MyProject

scala

object Hell {
   def main(args: Array[String]) {
      println("Hello, world!")
   }
}

Bobolo

scala

object HelloWorld   {

scala>20
}

member

scala

//Eric Staffieri
//Scala - Member

import scala.annotation.tailrec
object HelloWorld {
   def main(args: Array[String]) {
      val list = List(1,2,5,4)
      println(member(4, list))
      println(member(6, list))
   }
    def member(x: Int, list: List[Int]): Boolean = list match {
        case h :: t => if (x == h) true else member(x, t)
        case Nil => false
    }
}

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