The pages of this web site are not formatted to conserve paper, but my new book (ISBN: 0-9745862-0-X) is formatted to save paper, save your printer cartridge, save a loose-leaf binder, and save money. If you prefer to work my exams from printed pages, then give your printer a rest and buy my new book.
Today, you can find my book at BookSurge.com.
Are you a university student studying Java programming? Do you agree that my book would serve as a helpful workbook and companion to be used along with the Java fundamentals textbook that is currently being used in your class? If so, then please ask your professor to consider using my book in future classes.
If you have any questions or comments concerning my mock exams or my book, then please send an e-mail to me at scjpexam2000@yahoo.com.
I would also like to read your response to the following questions.
| No. | Answer | Remark | |
|---|---|---|---|
| 1 | c d e | 3 4 5 | If a class C is declared as a member of an enclosing class then C may be declared using no access modifier or any of the three access modifiers, private, protected or public. However, if class C is not a local class, anonymous class or a member of an enclosing class or interface; then C may be declared with the public modifier or with package access (i.e. no modifier). The other two access modifiers, private and protected, are not applicable to any class that is not a member class. The class declaration, Class Basics4 {}, generates a compile-time error, because all of the letters of the reserved word class must be lower case. |
| 2 | a | 1 | Only one class in a source code file can be declared public. The other classes may not be public. Therefore, the declarations for classes Basics2, Basics3 and Basics4 generate compile-time errors. |
| 3 | a d f | public abstract final | The access modifiers, protected and private, can be applied to a class that is a member of an enclosing class, but can not be applied to a local class or a class that is not nested inside another class. The static modifier can be applied to a class that is a member of an enclosing class, but can not be applied to a local class or a class that is not nested inside another class. The public modifier can be applied to a top level class to allow the class to be accessed from outside of the package. The abstract modifier prevents the class from being instantiated. An abstract class may include zero, one or more abstract methods. The final modifier prevents a class from being extended. |
| 4 | b | A local class can be declared abstract. | An anonymous class can not be extended; therefore, an anonymous class can not be declared abstract. A local class can be abstract. An abstract class can not be instantiated. If a class declaration contains an abstract method, then the class must also be declared abstract. A class can be declared abstract even if it does not contain an abstract method. An abstract class can never be declared final. |
| 5 | a d e h | class A extends Object. The compiler will insert a default constructor implicitly. The default constructor has no throws clause. The default constructor invokes the no-parameter constructor of the superclass. | Field i1 and m1 both have package access. When no constructor is declared explicitly the compiler will insert one implicitly. The implicitly declared default constructor will have the same access privileges as the class. In this case, the class is public, so the default constructor is also public. The default constructor accepts no parameters and throws no exceptions. |
| 6 | a | 1 | The modifiers, private and static, can be applied to a nested class, but can not be applied to a class that is not nested. A class that is not nested can have public or package access, but not private. The transient modifier can not be applied to any class; because it is a field modifier. |
| 7 | d | 4 | The modifier, protected, can not be applied to a top level class, but can be applied to a nested class. The synchronized modifier can not be applied to any class, because it is a method modifier. The modifier, volatile, can not be applied to any class; because it is a field modifier. |