1. package geometry;
2. public class Hypotenuse {
3. public InnerTriangle it = new InnerTriangle();
4. class InnerTriangle {
5. public int base;
6. public int height;
7. }
8. }
Which statement is true about the class of an object that can reference the variable base?
A. It can be any class.
B. No class has access to base.
C. The class must belong to the geometry package.
D. The class must be a subclass of the class Hypotenuse.
有点疑问啊，不是所有的class都可以访问吗？
A company that makes Computer Assisted Design (CAD) software has, within its application, some utility
classes that are used to perform 3D rendering tasks. The company's chief scientist has just improved the
performance of one of the utility classes' key rendering algorithms, and has assigned a programmer to replace
the old algorithm with the new algorithm. When the programmer begins researching the utility classes, she is
happy to discover that the algorithm to be replaced exists in only one class. The programmer reviews that
class's API, and replaces the old algorithm with the new algorithm, being careful that her changes adhere
strictly to the class's API. Once testing has begun, the programmer discovers that other classes that use the
class she changed are no longer working properly.
What design flaw is most likely the cause of these new bugs?
A. Inheritance
B. Tight coupling
C. Low cohesion
D. High cohesion
E. Loose coupling
F. Object immutability