Constants are a great way to define values that are not going to change. They are also a great way to define values that are going to be used in multiple places. The problem The solution Limitations In conclusion For example, if you have a class that represents a person, you might want to define a constant for the minimum age of a person. This constant can be used in multiple places, such as in the constructor of the class, in a method that checks if the person is an adult, and so on. The prob...