Okay several possibilities:
Instantiate A:
A a=new A();
a.xyz();
(you do not want this)
Heredity:
public class B extends A {...}
and
public class A extends ZZZZZ{...}
so you can still extend ZZZZZ;
Interface:
public interface A{...}
public class B extends ZZZZZ implements A{...}
Static Method:
public class A{
public static void xyz()
{
System.out.println("hello");
}
}
public class B{
public void callme()
{
A.xyz());
}
}
solved Use method from other class like native methods?