quiz9_5.java

北京大学出版社的

public class Quiz9_5 {
   public int calculate() {
      return a + b + c + d + e;
   }
   static public void main( String[] args ) {
      class A {
         private int a;
      };
   }
   protected class B {
      private int b;
   }
   class C {
      private int c;
   }
   private static class D {
      private int d;
   }
}
class E {
   private int e;
}