So far we have been using puts in our methods.
In the above case the method price doesn't return anything.
It prints the output. Let's change the code so that the price method
returns the message and some other method prints the output.
In the above case the method price is returning the cost of the coffee based on the condition.
In the method print the returned value is being stored in variable cost
and then we are printing that message. Note that the method price is not printing any value.
It's returning the price to the method that called it.
Let's see a few more examples of a method returning values.