Scala getting started-10 implicit conversions, implicit parameters, implicit classes, scala-10

Scala getting started-10 implicit conversions, implicit parameters, implicit classes, scala-10

So far, implicit conversion is the key and difficulty of scala ~

First, create a class named Implicit. scala.

Let's look at an example of an implicit parameter:

The implicit parameters are used in the above example. We can also explicitly specify the parameters:

Let's take a look at the implicit class:

Equivalent:

So far, I have practiced all the basic knowledge involved in scala development in spark. I will summarize other aspects of scala later.

Thank you for taking the time to read.