Scala Programming Examples

Compile and Execute Scala Online

scala

object HelloWorld {
   def main(args: Array[String]):Unit ={
   check(5,4)
   def check(x:Int,y:Int):Int={
       val s=x+y
       println(s)
   }
   }
}

Compile and Execute Scala Online

scala

trait AnalyticsSeeder

trait AnalyticsSeederRiskBucket extends AnalyticsSeeder
{
    val RiskBucket:Int
}

trait AnalyticsData

trait AnalyticsDataPriceCcy extends AnalyticsData
{
    val Price:Double
    val Ccy:String
}

case class AnalyticsOutput(value:Double)

case class Transaction(Price:Double,Ccy:String,Time:Double) extends AnalyticsDataPriceCcy


abstract class Scenario[A <% AnalyticsSeeder,T <% AnalyticsData](val seeder:A)
{
    def Next(data:T):AnalyticsOutput
}

class StdDev1(val period:Integer,val seeder1:AnalyticsSeederRiskBucket) extends Scenario[AnalyticsSeederRiskBucket,AnalyticsDataPriceCcy](seeder1)
{
    var Nums:Array[Double] = Array.fill(20){0}
    var cnt:Integer = 0
    def Next(data:AnalyticsDataPriceCcy):AnalyticsOutput = {
        cnt = cnt+1
        Nums(cnt) = data.Price
        AnalyticsOutput(10)
    }
    
}

object HelloWorld
{
    def main(args:Array[String])
    {
        println("test")
    }
}

Compile and Execute Scala Online

scala

object HelloWorld {
   def main(args: Array[String]) {
      
          val l = List(5,1,2,7,3)
      
      def insert:(List[Int],Int)=>List[Int]=
      (ls,v)=>ls match {
            case a::b =>{
                    if(a>v) List(v):::List(a):::b
                    else List(a)::: insert(b,v)
            }
            case _ => List(v)
      }
      
    def zwei:Int=>Int=
      x=>x*2
      
      val ls=List(1,2,3)
      
      println(ls.map(x=>zwei(x)))
      println(ls.map(zwei(_)))
      println(ls.map(zwei))
      
      def sort:List[Int]=>List[Int]=
      x=>x.foldRight(List[Int]())((x,y)=>insert(y,x))
      
      def sort2:List[Int]=>List[Int]=
      x=>x.foldLeft(List[Int]())((a,b)=>insert(a,b))
      

      
   }
}

Compile and Execute Scala Online

scala

1.class Student(id:Int, name:String){  
2.    def showDetails(){ 
    this.id=id;
    this.name=name;
3.        println(id+" "+name);  
4.    }  
5.}  
6.  
7.object HelloWorld{
8.    def main(args:Array[String]){  
9.        var s = new Student(101,"Rama");  
10.        s.showDetails()  
11.    }  
12.}

Compile and Execute Scala Online

scala

object HelloWorld {
    def main(args:Array[String]){
        var pets= Array("cat","pig","dog","elephant")
      
        println(pets(1));
    }

}

Compile and Execute Scala Online

scala

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

example

scala

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

Test

scala

class HelloWorld(val rno :Int,val name:String)
{
    val rno1:Int =rno;
    val name1:String=name;
    def display()
    {
        println("Roll No: "+rno+"\tName:"+name)
        
    }
    
}

class HelloWorld1(override val rno:Int,override val name:String, val department:String) extends HelloWorld(rno,name)
{
    val department1:String=department
    
    override def display()
    {
        
        println("Name: "+name+"\tRno:"+rno+"\tDepartment:"+department1)
    }
}






object HelloWorld
{
    def main(args:Array[String])
    {
        
        val h1=new HelloWorld1(1,"Frayosh","IDA")
        h1.display()
    }
    
    
}

Compile and Execute Scala Online

scala

import java.io._

class Student(val name:String,val rno:Int)
{
    
    val name1:String=name
    val rno1:Int=rno;
    
    def display()
    {  
     
        println("Name: "+name1+"Rno: "+rno1)
    }
    
   
}

object HelloWorld
{
    
     def main(args:Array[String])
    {
            val s =new Student("Frayosh",1);
            s.display()
    }
    
}

Test

scala

object HelloWorld {
   def main(args: Array[String]) {
      var (var1,var2) =Pair(40,"Hello")
      println(var2)
   }
}

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