Copro2 Midterm Exam
Choose the best answer.
- 1.
- What type of exception will you use if you are trying to access a non-existing file?
- A.
A. DiskFullException
- B.
B. FileNotFoundException
- C.
C. FileNotExistException
- D.
D. OutOfMemoryException
Correct Answer
B. B. FileNotFoundException - 2.
- What type of exception will you use if you are trying to access an object which is null?
- A.
A. NullPointerException
- B.
B. StringIndexOutOfBoundsException
- C.
C. ArrayIndexOutOfBoundsException
- D.
D. IOException
Correct Answer
A. A. NullPointerException - 3.
- Which of the following statement is required for handling user input error?
- A.
A. UserInputException
- B.
B. StringInputException
- C.
C. IOException
- D.
C. ArithmeticException
Correct Answer
C. C. IOException - 4.
These are normal errors that can occur during the execution of a program
- A.
A. error
- B.
B. exception
- C.
C. Runtime Exception
- D.
C. User Exception
Correct Answer
B. B. exception -
- 5.
This encompasses all exceptions which can ordinarily happen at runtime
- A.
A. error
- B.
B. exception
- C.
C. Runtime Exception
- D.
D. User Exception
Correct Answer
C. C. Runtime Exception -
- 6.
These are serious errors in the Java runtime system
- A.
A. error
- B.
B. exception
- C.
C. Runtime Exception
- D.
D. User Exception
Correct Answer
A. A. error -
- 7.
It takes a single argument which must be an object that is a subclass of Throwable.
- A.
A. error
- B.
B. exception
- C.
C. Runtime Exception
- D.
D. User Exception
Correct Answer
D. D. User Exception -
- 8.
It refers to letting the method’s caller catch the exception
- A.
A. passing on exceptions
- B.
B. catching exceptions
- C.
C. declaring exceptions
- D.
D. handling exceptions
Correct Answer
A. A. passing on exceptions -
- 9.
It refers to declaration that you can handle exceptions of a particular class from a particular block of code.
- A.
A. passing on exceptions
- B.
B. catching exceptions
- C.
C. declaring exceptions
- D.
D. handling exceptions
Correct Answer
B. B. catching exceptions -
- 10.
A block of code you attempt to execute while acknowledging that an exception might occur
- A.
A. finally block
- B.
B. try block
- C.
C. catch block
- D.
D. final block
Correct Answer
B. B. try block -
- 11.
A segment of code that can handle an exception that might be thrown by the try block that precedes it.
- A.
A. finally block
- B.
B. try block
- C.
C. catch block
- D.
D. final block
Correct Answer
C. C. catch block -
- 12.
A block of code when you have actions you must perform at the end of a try…catch blocks
- A.
A. finally block
- B.
B. try block
- C.
C. catch block
- D.
D. final block
Correct Answer
A. A. finally block -
- 13.
- What type of exception will you use if you are trying to access a secure web browser?
- A.
A. SecurityException
- B.
B. FileNotFoundException
- C.
C. OnAccessException
- D.
D. IOException
Correct Answer
A. A. SecurityException - 14.
- What type of exception will you use if you cannot read data from existing file?
- A.
A. ReaderException
- B.
B. FileNotFoundException
- C.
C. AccessException
- D.
D. IOException
Correct Answer
D. D. IOException - 15.
- The File’s canWrite() method will return true if the file is __________.
- A.
A. rewritable
- B.
B. accessible
- C.
C. writable
- D.
D. readable
Correct Answer
C. C. writable - 16.
- The File’s getName() method will return _________.
- A.
A. the name of the file
- B.
B. the name of the object
- C.
C. the name of the class
- D.
D. void
Correct Answer
A. A. the name of the file - 17.
Which of the following statements is true?
- A.
A. Errors are more serious than Exceptions
- B.
B. Exceptions are more serious than Errors
- C.
C. Errors and Exceptions are equally serious
- D.
D. Exceptions and errors are same thing
Correct Answer
A. A. Errors are more serious than Exceptions -
- 18.
The ______ package contains all the classes you use in file processing.
- A.
A. java.file
- B.
B. java.io
- C.
C. java.lang
- D.
D. java.process
Correct Answer
B. B. java.io -
- 19.
The file method canWrite returns a _________value.
- A.
A. integer
- B.
B. Boolean
- C.
C. Object
- D.
D. void
Correct Answer
B. B. Boolean -
- 20.
When you perform an input operation in a java program, you use a ___________.
- A.
A. pipeline
- B.
B. channel
- C.
C. moderator
- D.
D. stream
Correct Answer
D. D. stream -
- 21.
- The File’s getParent() method will return _________.
- A.
A. the name of the folder which the file can be found
- B.
B. the name of the file which currently executing
- C.
C. the name of the folder in My Documents.
- D.
D. the default folder
Correct Answer
A. A. the name of the folder which the file can be found - 22.
This is a technique to manage errors comprises the group of methods
- A.
A. exception
- B.
B. error
- C.
C. error handling
- D.
D. exception handling
Correct Answer
D. D. exception handling -
- 23.
What type of exception will you use if your program attempt to divide a value to zero?
- A.
A. NullPointerExcption
- B.
B. ArithmeticException
- C.
C. ArrayIndexOutOfBounds
- D.
D. IOExcption
Correct Answer
B. B. ArithmeticException -
- 24.
What type of exception will you use if the user tries to enter a number instead of a character?
- A.
A. NullPointerExcption
- B.
B. ArithmeticException
- C.
C. ArrayIndexOutOfBounds
- D.
D. IOException
Correct Answer
D. D. IOException -
- 25.
What type of exception will you use if the user tries to save a file in a disk which is full?
- A.
A. DiskFullException
- B.
B. NullPointerException
- C.
C. OutOfStackException
- D.
D. OutOfMemoryException
Correct Answer
D. D. OutOfMemoryException -
- 26.
What type of exception will you use if you are trying to access a non-existing index?
- A.
A. NullPointerException
- B.
B. StringIndexOutOfBoundsException
- C.
C. ArrayIndexOutOfBoundsException
- D.
D. IOException
Correct Answer
C. C. ArrayIndexOutOfBoundsException -
- 27.
What type of exception will you use if you are trying to access a non-existing character?
- A.
A. NullPointerException
- B.
B. StringIndexOutOfBoundsException
- C.
C. ArrayIndexOutOfBoundsException
- D.
D. IOException
Correct Answer
B. B. StringIndexOutOfBoundsException -
- 28.
The following are the different constructors that can be used to create File object except?
- A.
A. File(String directoryPath)
- B.
B. File(String directoryPath, String filename)
- C.
C. File(File dirPath, String filename)
- D.
D. File(File dirObj, String filename)
Correct Answer
C. C. File(File dirPath, String filename) -
- 29.
The File’s exists() method will return true if the file is __________.
- A.
A. existing
- B.
B. accessible
- C.
C. writable
- D.
D. readable
Correct Answer
A. A. existing -
- 30.
The File’s canRead() method will return true if the file is __________.
- A.
A. existing
- B.
B. accessible
- C.
C. writable
- D.
D. readable
Correct Answer
D. D. readable -
- 31.
The java.io package contains a ___________ class that is used to read from and write data to anywhere in a file.
- A.
A. RandAccessFile
- B.
B. RandomAccessFile
- C.
C. AccessFile
- D.
D. ReadWriteFile
Correct Answer
B. B. RandomAccessFile -
- 32.
The method __________ moves the file pointer in the forward direction by the number of bytes that are specified
- A.
A. getFilePonter()
- B.
B. seek()
- C.
C. skipBytes()
- D.
D. search()
Correct Answer
C. C. skipBytes() -
- 33.
The method _________ is used for moving the file pointer to specific positions
- A.
A. getFilePonter()
- B.
B. seek()
- C.
C. skipBytes()
- D.
D. search()
Correct Answer
B. B. seek() -
- 34.
The method ___________ is used for obtaining the current location of the file pointer
- A.
A. getFilePonter()
- B.
B. seek()
- C.
C. skipBytes()
- D.
D. search()
Correct Answer
A. A. getFilePonter() -
- 35.
It is a sequence of data flowing from a source to a destination.
- A.
A. data flow
- B.
B. stream
- C.
C. input
- D.
D. output
Correct Answer
B. B. stream -
- 36.
The character streams are used to transfer _______ of characters.
- A.
A. 8 bits
- B.
B. 8 bytes
- C.
C. 16 bits
- D.
D. 32 bytes
Correct Answer
C. C. 16 bits -
- 37.
It is a storage place where data can be kept before it is needed by a program that reads or writes that data.
- A.
A. reader
- B.
B. writer
- C.
C. buffer
- D.
D. stream
Correct Answer
C. C. buffer -
- 38.
- The File’s length() method will return _________.
- A.
A. the file’s size
- B.
B. the file’s length
- C.
C. the file’s capacity
- D.
D. void
Correct Answer
A. A. the file’s size - 39.
- The File’s lastModified() method will return _________.
- A.
A. the file it was first opened
- B.
B. the file it was last modified
- C.
Cc. the file it was recently opened
- D.
D. the file it was last accessed
Correct Answer
B. B. the file it was last modified - 40.
- The RandomAccessFile supports the concept of a _________ that is used to indicate the current location of the file.
- A.
A. file cursor
- B.
B. file pointer
- C.
C. file manager
- D.
D. file location
Correct Answer
B. B. file pointer - 41.
- It comprises of data flowing into a program
- A.
A. buffered reader
- B.
B. buffered writer
- C.
C. input stream
- D.
D. output stream
Correct Answer
C. C. input stream - 42.
FileNotFoundException is caused by general I/O failures, such as inability to read from a file
- A.
True
- B.
False
Correct Answer
B. False -
- 43.
The try-catch block can be nested
- A.
True
- B.
False
Correct Answer
B. False -
- 44.
The exception must be of the Throwable class or one of its subclasses
- A.
True
- B.
False
Correct Answer
A. True -
- 45.
You can use Byte Streams in reading and writing character data
- A.
True
- B.
False
Correct Answer
A. True -
- 46.
A throws clause lists the types of exceptions that a method might throw
- A.
True
- B.
False
Correct Answer
A. True -
- 47.
Each catch block defines an exception handle
- A.
True
- B.
False
Correct Answer
A. True -
- 48.
The two modes of a file are readable and writable
- A.
True
- B.
False
Correct Answer
B. False -
- 49.
Characters in Java are Unicode characters composed of two bits
- A.
True
- B.
False
Correct Answer
B. False -
- 50.
For each try block, there can be one or more catch blocks, but at most only one finally block
- A.
True
- B.
False
Correct Answer
A. True -
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Jan 22, 2013Quiz Edited by
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Feb 07, 2011Quiz Created by
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