Hello, I'm Java beginners, when learning reflection mechanism how also can not find a Java lang. Reflect?
I am using JDK13.02

Why is this excuse me? Or am I looking for the wrong location, lang originally don't import import under the package, but the compiler error, and lang, the bag also not reflect only in Java. The sun, have a reflect class under the nio, but after the import error

Thank you for the great spirit guide