1. class A { 
2. public byte getNumber （）  { 
3.   return 1； 
4.   } 
5. } 
6.   
7. class B extends A { 
8. public short getNumber（）  { 
9.  return 2； 
10. } 
11.   
12. public static void main （String args[]） {  
13.    B  b = new B （）； 
14.      System.out.printIn（b.getNumber（））    
15.   } 
16. }   
What is the result？（）  

A. An anonymous class can be declared as static.
B. A static inner class cannot be a static member of the outer class.
C. A static inner class does not require an instance of the enclosing class.
D. Instance members of a static inner class can be referenced using the class name of the static inner class.

A. Void setVar（float f） {x = f；}
B. Public void setVar（int f） {x = f；}
C. Public void setVar（float f） {x = f；}
D. Public double setVar（float f） {x = f；}
E. Public final void setVar（float f） {x = f；}
F. Protected float setVar（） {x=3.0f； return 3.0f； }

A. Compilation succeeds and 1 is printed.
B. Compilation succeeds and 2 is printed.
C. An error at line 8 causes compilation to fail.
D. An error at line 13 causes compilation to fail.
E. An error at line 14 causes compilation to fail.