CS506 Midterm Online Quiz

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CS506-Midterm

1 / 50

A ___________ defines the way and method of communication between two parties.

2 / 50

Which of the following syntax is used to attach an input stream to console?

3 / 50

A serializable class must implement the method(s)............

4 / 50

Which of the following stream is a filter stream?

5 / 50

Which of the following statements is true regarding Vectors with no specified base type?

6 / 50

Given a one dimensional array arr, what is the correct way of getting the number of elements in arr

7 / 50

In Java an abstract class cannot be sub-classed

8 / 50

Which of the following feature provide facility for multiple inheritances:-

9 / 50

Overloading is _______ whereas overriding is _____

10 / 50

A serializable class must implement the method(s) _________.

11 / 50

Which of the following package needs to import while interacting with relational database?

12 / 50

Exceptions must be handled while handling files otherwise it may lead to _____

13 / 50

When defining a method you must include a ___________ to declare any exception that might be thrown but is not caught in the method.

14 / 50

Which of the following statement object is used to execute stored procedures?

15 / 50

Window frame and dialog use ________ as their default layout.

16 / 50

Window Listener interface contains _______ methods.

17 / 50

____________is/are the JSP Implicit Object(s).

18 / 50

Which of the following package needs to be import while handling files?

19 / 50

____________is/are the JSP Implicit Object(s).

20 / 50

Mouse events can be trapped for ________ GUI component.

21 / 50

An expression tag contains a scripting language expression that is evaluated.

22 / 50

The collections API are defined in ______ package?

23 / 50

There are _________ types of exceptions in Java

24 / 50

You can ---------to a network using sockets.

25 / 50

Which of the following function will be used to register event handler with events generator (button)?

26 / 50

Which of the following is true about AWT and SWING components?

27 / 50

In Java, which of these classes implement the LayoutManager interface?

28 / 50

A top level class may have only the following access modifier.

29 / 50

If we remove static from main then program __________

30 / 50

Which of the following are passed as an argument to the paint () method:

31 / 50

A top level class without any modifier is accessible to

32 / 50

HahMap takes key as a/an _________

33 / 50

Which of the following exception belongs to a category of un-checked exception?

34 / 50

Event source can have --------- listeners registered on it.

35 / 50

If a super class method is protected then overriding method _________

36 / 50

Which of the following is a general purpose container?

37 / 50

Based on functionality, the streams can be categorized as________

38 / 50

Which of the following belongs to a category of checked exception?

39 / 50

Event source can have --------- listeners registered on it.

40 / 50

Exceptions must be handled while handling files otherwise it may lead to____?

41 / 50

CREATE, ALTER, DROP are _________ SQL statements.

42 / 50

You want a class to have access to members of another class in the same package. Which is the most restrictive access that accomplishes this objective?

43 / 50

An abstract class --------------- instantiated.

44 / 50

Which of these are valid declarations for the main method?

45 / 50

The code below draws a line. What color is the line? g.setColor(Color.red.green.yellow.red); g.drawLine(0, 0, 100,100);

46 / 50

What if the main method is declared as private?

47 / 50

Which of the following methods are invoked by the AWT to support paint and repaint operations?

48 / 50

Aside from the Scanner class, which of the following classes can be used for text-file file input?

49 / 50

In Java a final class must be sub-classed before it.

50 / 50

A top level class may have only the following access modifier.

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