Should getters and setters be public or private?

Usually you want setters/getters to be public, because that’s what they are for: giving access to data, you don’t want to give others direct access to because you don’t want them to mess with your implementation dependent details – that’s what encapsulation is about.

Why getters and setters are not public variables?

Main problem with making field public instead of getter and setter is that it violates Encapsulation by exposing the internals of a class. Once you are exposed internals of class you can not change internal representation or make it better until making changes in all client codes.

Are getters private?

Actually, it is not. The reason for declaring getters and setters is to hide the fields. This is done to avoid unwanted coupling; i.e. clients of an API depending on the implementation details of the API. (That coupling can be problematic for a number of reasons.)

Why getters and setters are public?

exposing it through getters/setters is holding control over the property. If you make a field public, it means you provide direct access to the caller. Then, the caller can do anything with your field, either knowingly or unknowingly.

Can I have a getter without a setter?

If your class is going to be used in the environment where setter is not required (e.g. ORM / dependency injection / serialization frameworks), it should be OK to do not use setter. In this particular case setter does not make much sense since variable is final and set only once.

Why public variables are bad?

Using global variables causes very tight coupling of code. Using global variables causes namespace pollution. This may lead to unnecessarily reassigning a global value. Testing in programs using global variables can be a huge pain as it is difficult to decouple them when testing.

Do getters need to be public?

There is no best practice with regard to using getters/setters or having public members. There is only what is best for your specific object and how it models some specific real world thing (or imaginary thing perhaps in the case of game).

Can a getter and setter be overridden in a field?

Properties can be overridden but fields can’t be. Adding getter and setter makes the variable a property as in working in Wpf/C#. If it’s just a public member variable, it’s not accessible from XAML because it’s not a property (even though its public member variable).

Why do we use getters and setters in Java?

One advantage of accessors and mutators is that you can perform validation. For example, if foo was public, I could easily set it to null and then someone else could try to call a method on the object. But it’s not there anymore! With a setFoo method, I could ensure that foo was never set to null.

Why are getters and setters important in OOP?

Setter and Getter enables you to add additional abstraction layer and in pure OOP you should always access the objects via the interface they are providing to the outside world Consider this code, which will save you in asp.net and which it would not be possible without the level of abstraction provided by the setters and getters:

How can you change auto implemented getters and setters in the future?

Consider this code, which will save you in asp.net and which it would not be possible without the level of abstraction provided by the setters and getters: Since auto implemented getters takes the same name for the property and the actual private storage variables. How can you change it in the future?

Should getters and setters be public or private?