quiz9_7.java

北京大学出版社的

public class Quiz9_7 {
   static public void main( String[] args ) {
      class A {
         private int a;
      };
   }
   protected class B {
      private int b;
      public int calculate() {
         return a + b + cObj.c + dObj.d + e;
      }
   }
   class C {
      private int c;
   }
   private static class D {
      private int d;
   }
   private D dObj = new D();
   private C cObj = new C();
   private int e;
}