You can obtain values from an object, and set a value of a property within an object.
These are classically called <dfn>getters</dfn> and <dfn>setters</dfn>.
Getter functions are meant to simply return (get) the value of an object's private variable to the user without the user directly accessing the private variable.
Setter functions are meant to modify (set) the value of an object's private variable based on the value passed into the setter function. This change could involve calculations, or even overwriting the previous value completely.<br><br>
<strong>Note:</strong> It is a convention to precede the name of a private variable with an underscore (<code>_</code>). The practice itself does not make a variable private.
Use <code>class</code> keyword to create a Thermostat class. The constructor accepts Fahrenheit temperature.
Now create <code>getter</code> and <code>setter</code> in the class, to obtain the temperature in Celsius scale.
Remember that <code>C = 5/9 * (F - 32)</code> and <code>F = C * 9.0 / 5 + 32</code>, where F is the value of temperature in Fahrenheit scale, and C is the value of the same temperature in Celsius scale