CIS 247 DEVRY WEEK 1 QUIZ LATEST

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CIS 247 DeVry Week 1 Quiz Latest

CIS247

CIS 247 DeVry Week 1 Quiz Latest

1. Question : (TCO 1) The components of a class are called _____ and __

___.

• elements; objects
• attributes; methods
• objects; instantiations
• properties; descriptions

Question 2. Question : (TCO 1) Which of the following would be the most appropriate choice for a method in a Cup class?

• drink()
• hot()
• break()
• color()

Question 3. Question : (TCO 1) Which of the following statements is/are true?

Objects communicate through message passing.

An object must be defined before you can create a class.

The state of an object should not be hidden.

Implementation details should be visible through the interface of a class.

• A and C
• All are true
• None are true

Question 4. Question : (TCO 1) Which of the following would be the most appropriate choice for a data member in a Screen class?

• dimensions
• turnoff
• refresh
• activate Screensaver

Question 5. Question : (TCO 1) The property of _____ describes the packaging of state and behavior together in an object.

• data hiding
• abstraction
• encapsulation
• All of the above
• None of the above

Question 6. Question : (TCO 8) Most professional coding standards use_____ for class names.

• underscores along with all upper case words
• Method Class case
• no specific naming convention
• Pascal case

Question 7. Question : (TCO 1) Examine the ClockType class definition. How many attributes does it contain?

class ClockType { public void setTime(int hour, int min, int sec);

public int getTime();

public void printTime();

private int hr;

public int min;

public int sec; }

• 2
• 3
• 9
• 6
• An average of 5 because (7+3)/2 = 5

Question 8. Question : (TCO 1) Assume we have two classes and have instantiated an object from each class. How many copies of each class’s attributes and methods exist in the instantiated objects?

• Two copies, one copy of the first class and one of the second
• Zero, the objects do not have attributes and methods
• Only one copy and both objects share it
• None of the above

Question 9. Question : (TCO 1) Both _____ and _____ allow for code reuse and the building of more complex systems.

• inheritance; composition
• UML diagrams; serialization
• messaging; object behaviors
• None of the above

Question 10. Question : (TCO 1) Which of the following is a valid statement for a method definition in Java?

• public int computeAverage { return 1; }
• public int computeAverage ( return 1; )
• public int computeAverage () { return 1; };
• public int computeAverage () { return 1; }