How this code execute

Question

class c is an abstract class n the class a extends c. Inside the main method of class a I have a reference to class c n the object of class a. When I execute the print statement it print c that mean method in the abstract class. But I create the object for the concrete class which extends the abstract class. Seems like the object was created for the abstract class. How could that happen. Can some one help me . Thanks in advance.
abstract class c{
     public static void cc(){
          System.out.println("c");
public class a extends c{
     public static void cc(){
          System.out.println("a");
public static void main(String args[]){
     c obj=new a();
     obj.cc();
}

Answer 1

I found the solution for that. That's because static KW. Even I create the object of concrete class the reference is abstract class. Since the method is static that method call. If I remove that sub class method get called.