Contravariance.scala

class Contravariance[-T]
//defined class Contravariance


val contAny:Contravariance[Any] = new Contravariance[String]
/*
<console>:8: error: type mismatch;
 found   : Contravariance[String]
 required: Contravariance[Any]
       val contAny:Contravariance[Any] = new Contravariance[String]
                                         ^
*/

val contString:Contravariance[String] = new Contravariance[Any]
//contString: Contravariance[String] = Contravariance@73f025cb

val contString:Contravariance[String] = new Contravariance[String]
//contString: Contravariance[String] = Contravariance@7b0fcdf3