java.lang.InstantiationException Erro when try instantiate a children class

Hi I have the following clases:

public abstract class A(){

    public void doSomething();

    public void makeMe(){
        try {
            A.class.getDeclaredConstructor().newInstance();
        } catch (InstantiationException | IllegalAccessException | IllegalArgumntException
                    | InvocationTargetException | NoSuchMethodException | SecurityException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
        }
    }

}

public class B() extends A{
    @Override
    public void doSomething(){
    }    
}

public class C() extends A{
    @Override
    public void doSomething(){
    }    
}

How can do makeMe for that I can get the follow behavior:

B.makeMe()

C.makeMe()

The original class are more complex than this, this is only an example. But how can get it this, is it possible?

It is possible do this with reflections?

Thanks