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programming languages Online Quiz - 319

Description: programming languages Online Quiz - 319
Number of Questions: 20
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Tags: programming languages
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Given: 11. public class Key { 12. private long id1; 13. private long 1d2; 14. 15. // class Key methods 16. } A programmer is developing a class Key, that will be used as a key in a standard java.util.HashMap. Which two methods should be overridden to assure that Key works correctly as a key? (Choose two.)
technology programming languages

  1. public int hashCode()

  2. public boolean equals(Key k)

  3. public int compareTo(Object o)

  4. public boolean equals(Object o)

  5. public boolean compareTo(Key k)

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Correct Option: A,D

AppDomains are usually created by hosts

technology programming languages

  1. True

  2. False

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Correct Option: A

Which tool is used to generate PE files from MSIl code?
technology programming languages

  1. ildasm

  2. ilasm

  3. capol

  4. resgen

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Correct Option: B

Placing web service files in one of these folders, generates a proxy class(out of .wsdl) and a typed dataset (out of .xsd). What is the name of the folder?
technology programming languages

  1. App_Data

  2. App_Resources

  3. App_Code

  4. App_WebReferences

Show answer
Correct Option: C

Which of the page directive defines the class or virtual path used to type the Master property of a page?
technology programming languages

  1. @MasterType

  2. @MasterPage

  3. @Master

  4. @MasterPath

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Correct Option: A

What is called as a collection of CSS files and images?
technology programming languages

  1. Skin

  2. Themes

  3. CSS_folder

  4. None

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Correct Option: B

POST is an IDEMPOTENT method.
technology programming languages

  1. True

  2. False

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Correct Option: B

service() method - it's advisable to override it in our applications.

technology programming languages

  1. True

  2. False

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Correct Option: B

In MVC architecture, VIew means the JSP.
technology programming languages

  1. True

  2. False

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Correct Option: A

SERVLETCONFIG--- one per web Application.
technology programming languages

  1. True

  2. False

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Correct Option: B

init() & destroy() ---methods can ONLY BE CALLED ONCE!

technology programming languages

  1. True

  2. False

Show answer
Correct Option: A

What noted Java developer at his Ph.D. defense answered a planted question with a rap song backed by a recorded rhythm track on a hidden tape recorder?
technology programming languages

  1. James Gosling

  2. Guy Steele

  3. Joshua Bloch

  4. Greg Papadopoulos

Show answer
Correct Option: C

True or false: It is preferable to write: List dogs = new ArrayList(); instead of List dogs = new ArrayList(); because raw types enable developers to avoid needless verbiage.

technology programming languages

  1. True

  2. False

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Correct Option: B

Who agrees with the idea that developers should write "dumb code," meaning straightforward, clean code that follows the most obvious object-oriented principles, in order to get the best compiler optimization -- and that clever, hacked-up, bit-banging code will get poorer results?

technology programming languages

  1. Brian Goetz

  2. Heinz Kabutz

  3. Cay Horstmann

  4. All of the above

  5. None of the above

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Correct Option: D

Joshua Bloch says that the strangest thing about the Java platform is _____
technology programming languages

  1. Poor Unicode support.

  2. java.lang.Cloneable does not contain clone() method.

  3. The byte type is signed.

  4. The creators of the Java programming language modeled the syntax after C and C++.

  5. java.io.InputStream is an abstract class and not an interface.

Show answer
Correct Option: C

Who strongly believes in the importance of unit testing and says that developers should engage in it?
technology programming languages

  1. Heinz Kabutz

  2. Cay Horstmann

  3. Joshua Bloch

  4. 1 and 3

  5. All of the above

Show answer
Correct Option: D

Qusay Mahmoud remarked that "Today's generation of students is becoming known as Generation C." What does "C" stand for?
technology programming languages

  1. Create, complete, and collect

  2. Creativity, curiosity, and career

  3. Content, cash, choice, and control

  4. Compete, confer, and collect

Show answer
Correct Option: C

For which action can you use the TO_DATE function?
technology programming languages

  1. Convert any date literal to a date

  2. Convert any numeric literal to a date

  3. Convert any character literal to a date

  4. Convert any date to a character literal

  5. Format ’10-JAN-99’ to ‘January 10 1999’

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Correct Option: C

Computer science professors Qusay Mahmoud and Cay Horstmann agree that the biggest mistake made by teachers of computer science is

technology programming languages

  1. Overwhelming students with too much code complexity too early

  2. Lecturing too much

  3. Failing to educate students in the use of tools

  4. Failing to encourage individual creativity and initiative

Show answer
Correct Option: B

Which one is a system privilege?
technology programming languages

  1. SELECT

  2. EXECUTE

  3. ALTER TABLE

  4. CREATE TABLE

  5. DELETE

Show answer
Correct Option: D
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