parent package class accessible from child packge class in java?

Question

In java parent package class accessible from child packge class? please explain me any one?

example package A.A1.A2 contains class sub package A contains class sup

Answer 1

In object of a.b.c.SomeOtherClass:

List tmp=new ArrayList(Arrays.asList(this.getClass().getPackage().getName().split("\\.")));
tmp.remove(tmp.size()-1);
String parent_package_name=tmp.toString().replace(", ", ".").replaceAll("[\\[\\]]", "");
Class cls=Class.forName(parent_package_name+".SomeClass");