// interfaces/SealedRecords.java // (c)2021 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://OnJava8.com for more book information. // {NewFeature} Since JDK 17 sealed interface Employee permits CLevel, Programmer {} record CLevel(String type) implements Employee {} record Programmer(String experience) implements Employee {}