I made the model
java file and tried to compile it from the appropriate directory using the command
javac -d classes src/com/example/model/BeerExpert.java (from the myprojects/beerv1 directory)
but it is not compiling with the error
Note: src\com\example\model\BeerExpert.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
But I copied down the exact model file program as has been written in the book "Head First
Servlets and JSP", chapter 3
What shall I do?