複選題
69 
Which three are valid on line 12? (Choose three.)
(A) final
(B) static
(C) native
(D) public
(E) private 

(AB) abstract 

(AC) protected

63 Which three are valid? (Choose three.)  1. p0 = p1;  2. p1 = p2,  3. p2 = p4;  4. p2 = (ClassC)p1;  5. p1 = (ClassB)p3;  6. p2 = (ClassC)p4; (A) 123 (B) 126 (C) 235 (D) 156

66 Which two are true? (Choose two.)  1. The output is mm.  2. The output is mc.  3. Component is-a Meter.  4. Component has-a Meter. 5. DeluxeThingy is-a Component.  6. DeluxeThingy has-a Component. (A) 16 (B) 34 (C) 12 (D) 56

複選題67 Which two methods, inserted independently at line 17, correctly complete the Sales class? (Choose two.) (A) double getSalesAmount() { return 1230.45; } (B) public double getSalesAmount() { return 1230.45; } (C) private double getSalesAmount() { return 1230.45; } (D) protected double getSalesAmount() { return 1230.45; }

68 How many of these method names follow JavaBean Listener naming rules? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

70 Given the fully-qualified class names: com.foo.bar.Dog com.foo.bar.blatz.Book com.bar.Car com.bar.blatz.Sun Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JVM? (A) Jar A (B) Jar B (C) Jar C (D) Jar D (E) Jar E

複選題71 What is the result? (A) Compilation fails because of an error in line 3. (B) Compilation fails because of an error in line 7. (C) Compilation fails because of an error in line 9. (D) If you define D e = new E(), then e.bMethod() invokes the version of bMethod() defined in Line 5. (E) If you define D e = D(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 5. (AB) If you define D e = D(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 9.

72 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.

73 Which class correctly uses the Data interface and Info class? (A) (B) (C) (D) (E) (AB) 

複選題74 Which two classes correctly implement both the java.lang.Runnable and the java.lang.Cloneable interfaces? (Choose two.) (A)  (B)  (C) (D) (E) 

75 What is the result? (A) Compilation succeeds. (B) Exactly one class does NOT compile. (C) Exactly two classes do NOT compile. (D) Exactly four classes do NOT compile. (E) Exactly three classes do NOT compile.