Is there a way to override class variables in Java?

Question

class Dad
{
    protected static String me = \"dad\";

    public void printMe()
    {
        System.out.println(me);
    }
}

class Son extends Dad
{
    protected         


        

Answer 1

Why would you want to override variables when you could easily reassign them in the subClasses.

I follow this pattern to work around the language design. Assume a case where you have a weighty service class in your framework which needs be used in different flavours in multiple derived applications.In that case , the best way to configure the super class logic is by reassigning its 'defining' variables.

public interface ExtensibleService{
void init();
}

public class WeightyLogicService implements ExtensibleService{
    private String directoryPath="c:\hello";

    public void doLogic(){
         //never forget to call init() before invocation or build safeguards
         init();
       //some logic goes here
   }

   public void init(){}    

}

public class WeightyLogicService_myAdaptation extends WeightyLogicService {
   @Override
   public void init(){
    directoryPath="c:\my_hello";
   }

}