Compile and Execute Scala Online

object Demo {
   def main(args: Array[String]) {
      var myVar :Int = 10;
      val myVal :String = "Hello Scala with datatype declaration.";
      var myVar1 = 20;
      val myVal1 = "Hello Scala new without datatype declaration.";
      
      println(myVar); 
      println(myVal); 
      println(myVar1); 
      println(myVal1);
   }
}