Test your basic knowledge |

Data Structures And Algorithms Java

Subject : it-skills

Instructions:

Answer 21 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Converts the string type into an integer.
throws IOException
parse.Int()
real-world modeling
methods

2. Invoking a method for a specific object.
linked lists
object.method();
object
main()

3. Data structure storage that is accessed by the program itself. Ex - stacks and queues.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

4. Returns a character at the specific position in the string object.
class
charAt()
object.method();
linked lists

5. The constructor has the same name as the ______ it resides in.
class
variable
real-world modeling
charAt()

6. Execution of the program starts here
main()
class
throws IOException
instance

7. An arrangement of data inside a computers memory or a disk.
objects methods
main()
data structure
new

8. A software bundle of variables and related methods.
object
variable
objects methods
linked lists

9. Manipulate the data in data structures in various ways such as sorting.
algorithms
objects methods
outside entity
parse.Int()

10. To create an object in Java you must do two things: 1. Use the keyword "new" 2. Store a reference to the object in a ______ that is the same type as the class.
objects methods
variable
outside entity
data structure

11. A blueprint that defines an objects variables and methods.
variable
main()
object.method();
class

12. A field of method that is private can only be accessed by _________ that are apart of the same class.
real-world modeling
class
methods
charAt()

13. An object is often referred to as _____ of a class.
instance
object.method();
outside entity
constructor

14. Must be added to all input methods for them to work
throws IOException
real-world modeling
linked lists
object

15. Data structure storage that describes physical entities external to the computer. Accessed by a programs user.
class
real-world storage data
methods
programmer's tools

16. This keyword creates a new object in Java.
new
class
outside entity
linked lists

17. Other parts of your program interact with objects by interacting with an __________
objects methods
object.method();
real-world storage data
variable

18. Data structures that directly model real-world situations...think graphs.
class
algorithms
real-world modeling
main()

19. A special method that is called automatically whenever a new object is created. It prepares the object for use.
constructor
outside entity
methods
variable

20. Any ___________ that wants to access data in a class can do so by using a method of that class.
algorithms
programmer's tools
real-world modeling
outside entity

21. 5 data types - BLASH: binary trees - _______ - arrays - stacks - hash tables
class
object.method();
real-world modeling
linked lists