in scala
trait Function2

`abstract trait` Function2 [T0, T1, R]
  `extends` java.lang.Object
  `with` scala.ScalaObject

  Function with 2 parameters. In the following example the definition of `max` is a shorthand for the anonymous class definition `anonfun2`:

       object Main extends Application {

         val max = (x: Int, y: Int) => if (x < y) y else x

         val anonfun2 = new Function2[Int, Int, Int] {
           def apply(x: Int, y: Int): Int = if (x < y) y else x
         }

         Console.println(max(0, 1))
         Console.println(anonfun2(0, 1))
       }

Direct Known Subclasses:
  PatternTests

Def Summary
`abstract` | `def` apply (v0: T0, v1: T1) : R
`override` | `def` toString : java.lang.String

Def Detail

`abstract def` apply (v0: T0, v1: T1): R

`override def` toString : java.lang.String