98. Introducing record patterns for switch

You already know that type patterns can be used for instanceof and switch expressions. This statement is true for record patterns as well. For instance, let’s reiterate the Doctor and Resident records:

public record Doctor(String name, String specialty) 
  implements Staff {}
public record Resident(String name, Doctor doctor) 
  implements Staff {}

We can easily use these two records via record patterns in a switch expression as follows:

public static String cabinet(Staff staff) {
 return switch(staff) {  
  case Doctor(var name, var specialty) 
    -> "Cabinet of " + specialty + ". Doctor: " + name;
  case Resident(var rsname, Doctor(var drname, var specialty)) 
    -> "Cabinet of " + specialty + ". Doctor: " 
                     + drname + ", Resident: " + rsname;
  default -> "Cabinet closed";
 }; 
}

Adding more nested records follows the same...