Choose the most correct answer to all the following questions.

1. Java imposes no limitations on file structure (sequential or random).

   1.   ?    True
   2.   ?    False

2. The statement block of a bottom checking conditional loop executes 1 or more times.

   1.   ?    True
   2.   ?    False

3. A double data type value requires 8 bytes of storage in memory.

   1.   ?    True
   2.   ?    False

4. When an object is serialized, the objects .class file and it's field values are written to the file.

   1.   ?    True
   2.   ?    False

5. The RandomAccessFile class contains a method that can detect when the end of the file is reached.

   1.   ?    True
   2.   ?    False

6. What method is used to write an object to a file?

   
   
   Check AnswerShow answer

7. What method is used to read an object from a file?

   
   
   Check AnswerShow answer

8. What is the name of the process that writes an object to a file?

   
   
   Check AnswerShow answer

9. The two (2) Java classes that must be used to write an object to a file are:

   1.   ?    ObjectOutputStream and FileOutputStream
   2.   ?    ObjectInputStream and FileInputStream
   3.   ?    ObjectWriter and FileWriter
   4.   ?    ObjectOutputWriter and FileOutputWriter

10. Which two (2) Java classes must be used to read an object from a file.

    1.   ?    FileInputReader and ObjectInputReader
    2.   ?    FileReader and ObjectReader
    3.   ?    ObjectOutputStream and FileOutputStream
    4.   ?    ObjectInputStream and FileInputStream

11. What is the name of the process that reads an object from a file?

    
    
    Check AnswerShow answer

12. Consider the following: your random access file uses fixed length records. The records are numbered sequentially, starting with record 1. Which formula will allow you to access any record from the file?

    1.   ?    (recordLength - 1)* recordNum
    2.   ?    (recordLength - 1)* recordLength
    3.   ?    (recordNum - 1)* recordLength
    4.   ?    (recordLength - 1)* recordNum

13. What is the data type of an object read from a file?

    1.   ?    char
    2.   ?    string
    3.   ?    object
    4.   ?    unicode

14. What character set is used by the Java language?

    1.   ?    ASCii
    2.   ?    Unicode
    3.   ?    Arial
    4.   ?    English

15. An object in memory consists of ________ and ________.

    1.   ?    methods and fields
    2.   ?    fields and arrays
    3.   ?    serialization and deserialization
    4.   ?    private methods and fields

16. Encapsulation requires the use of ________ fields and/or methods.

    1.   ?    public
    2.   ?    private
    3.   ?    shared
    4.   ?    hidden