Now that you understand an instance's life cycle, it is time to spend some time in the Playground, the Swift REPL, or the Swift Sandbox, creating new classes and instances:
Exercise 1: Create a new
Employee
class with a custom initializer that requires two string arguments:firstName
andlastName
. Use the arguments to initialize properties with the same names as the arguments. Display a message with the values forfirstName
andlastName
when an instance of the class is created. Display a message with the values forfirstName
andlastName
when an instance of the class is destroyed.Create an instance of the
Employee
class and assign it to a variable. Check the messages printed in the Playground's Debug area. Assign a new instance of theEmployee
class to the previously defined variable. Check the messages printed in the Playground's Debug area.
Exercise 2: Create a function that receives two
string
arguments:firstName
andlastName
. Create an instance of the previously defined...