javavisual-studio-codehidden-fieldmember-hiding

Java rule that warns on hiding fields

Java allows hiding fields

a field that has the same name as a field in the superclass hides the superclass's field

But it isn't consider a best practice

we don't recommend hiding fields as it makes code difficult to read.

Is there a rule that can warn on hiding fields in IDE or static tool?

I currently use VS code

We want to avoid issues as setting child field and getting parent field by mistake

public abstract class Parent {
   protected String a; 
   public abstract String test();
}
public class Child extends Parent {
   protected String a; 
    @Override
    public String test() {
        return null;
    }
}
Solution

  • In Intellij IDEA:

    Settings -> Editor -> Inspections -> Java -> Visibility -> Field name hides field in superclass