关于Scala Primitive Types

注意到

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Java's int primitive type 也对应了相应的预定义类对象： int.class / java.lang.Integer.TYPE，由JVM创建

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测试环境

jdk1.8.0_201

参考：

https://www.scala-lang.org/api/2.11.1/index.html#scala.Int

https://www.scala-lang.org/api/2.12.1/scala/Int.html

https://www.scala-lang.org/api/2.13.4/scala/Int.html

https://stackoverflow.com/questions/22470985/integer-class-vs-int-class

https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html

https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#isPrimitive--