Why are getter and setter methods important?
Getters and setters are methods used to declare or obtain the values of variables, usually private ones. They are important because it allows for a central location that is able to handle data prior to declaring it or returning it to the developer.
Why do we include getters and setters in classes?
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. If anything goes wrong, the setter will not pass the value to a class member field.
Which choice is not an advantage of using getter and setter?
Which of the following is NOT an advantage of using getters and setters? Getters and setters can speed up compilation. Getters and setters provide encapsulation of behavior. Getters and setters provide a debugging point for when a property changes at runtime.
Why setters and getters are evil?
Getter and setter methods (also known as accessors) are dangerous for the same reason that public fields are dangerous: They provide external access to implementation details. You also have to change the accessor’s return type. You use this return value in numerous places, so you must also change all of that code.
Should getters and setters be public?
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.
Should setters and getters be public?
What is not an advantage of using getters and setters?
What is the purpose of getters and setters in Java?
The idea of getters and setters are to control access to variables in a class. That way, if the value needs to be changed internally to be represented in a different way, you can do so without breaking any code outside the class.
Is it bad to add getters and setters?
Of course, both are equally bad when the object doesn’t need a property to be changed. I’d rather make everything private, and then add getters if useful, and setters if needed. – Tordek Oct 14 ’09 at 18:29 30 Google “accessors are evil” – OMG Ponies Oct 14 ’09 at 18:45 37
Can I have a setter that sets multiple fields together?
You can have a setter that sets multiple fields together because they belong together conceptually. This doesn’t adhere to the JavaBeans specification, so don’t do it if you depend on frameworks or tools that expect JavaBeans. Otherwise, it’s a useful option.