scala-expressions-1.scala

scala> 1 + 1
res0: Int = 2

scala> (1).+(1)
res1: Int = 2

scala> 2 + 5 * 8
res2: Int = 42

scala> (2).+((5).*(8))
res3: Int = 42

scala> 42.            // Tab complete
!=             ##             %              &              *              +              -              /              <              
<<             <=             <init>         ==             >              >=             >>             >>>            ^              
asInstanceOf   equals         getClass       hashCode       isInstanceOf   toByte         toChar         toDouble       toFloat        
toInt          toLong         toShort        toString       unary_+        unary_-        unary_~        |              

scala> "foo".size
res4: Int = 3