Public And Private

Private properties and functions can be accessed or modified only in the class body.

Public members can be accessed or modified anywhere - both inside and outside the class body.

It can be understood via the following code:


There are a couple of things to notice about the private property id and the public properties name and age:

  • Both public and private properties can be accessed/modified in the class body: for public properties - lines 12 and 13, for private properties - line 14.
  • Outside the Person class body (like the Main function) only public properties can be accessed/modified - lines 21 and 22.
  • If we uncomment line 23 the code will not execute. Because a private member (id in this case) cannot be accessed/modified outside the Person class body.