Part A - Vectors/Arrays

1. To use a vector you must import which of the following?

Java.Vector.*
java.util.Vector
java.util.Collection
java.io.*

2. A vector can be described as _______.

A fixed length data structure
A special type of stack
A dynamic array
A special type queue

3. Which of the following is false?

A vector can be sorted.
A vector is declared with an initial capacity.
A vector can store mixed types of object.
A vector exceeds its initial capacity by a factor of ten.

4. The ninth element of numArray is identified as follows,________ .

numArray[8];
numArray[9];
numArray[] = 9;
numArray[7] += 2;

5. Which of the following JAVA commands declares an array of 10 elements?

int numbers[] = new int[10];
int numbers[10];
int numbers[] = 10;
new int numbers[] = int[10];

Part B - Interface/AWT

6. Which of following is a device that unrelated objects use to interact with one another?

an interface;
a class;
a method;
a keyboard;

7. Which of the following in not an example of an AWT component?

Canvas
Scrollbar
Table
List

8. AWT stands for __________ .

Automated Windowing Toolkit
Automatic Workspace Toolkit
Abstract Windowing Toolkit
Absolutely Wacky Things

9. Which of the following is not part of using container?

create the container
choose a layout manager for the container
add components to the container
set the sound of the container

10. Which of the following statements is false?

A layout is suggested ordering of UI components.
Border, Card, Flow, Grid, and Gridbag are types of layout.
The setModel(boolean b) method is a Dialog method.
Not all containers have a layout.

Part C - File I/O

11. Which of the following options are available while working with sequential files?

writing,reading,appending
writing,reading
reading,appending
writing,appending

12. Which of the following methods will write a string to a sequential file?

writeInt
writeString
writeSTR
writeUTF

13. To open a random access file to add information to it use which attribute(s)?

w
r
rw
aw

14. To create a random access file you must create an object of which class?

DataOutStream
DataInputStream
FileOutputStream
RandomAccessFile

15. Which of the following is not true of random access files?

The size of the files must be set when it is created.
The size of records within the file can vary.
The file should be initialized when it is created.
You can not delete records in random access files.

Part D - Other Stuff

16. The class which enables us to break a string into separate components is the __________ class.

StringSep
StringTokenizer
UnStrungString
StrungOutString

17 The following code segment is an example of __________ .

public void overload(String s){...}
public void overload(int i){...}
public void overload(int i, float f){...}

multiple inheritance
polymorphism
overriding
overloading

18 Three key words which are commonly used in exception handling routines are __________ .

try, tryagain, catch
try,throw,catch
catch,rethrow,finally
pitch,catch,strieout

19 When a sub-class method is used in preference to a supper-class method of the same name, this is an example of __________ .

overloading
instance
overriding
local scope

20 To convert data entered into an TextField into an integer, use which of the following?

Integer.parseInt
ParseInt.Integer
String.parseInt
(integer)(Textfield.getText

21. Which of the following defines a "Car" class, which it to behave just like a "Vehicle" class except that it has additional methods?

Vehicle Car{...}
class Vehicle extends Car{...}
class Car extends Vehicle{...}
class Car implements Vehicle{...}

22. Which of the following is true about abstract classes?

You cannot derive a sub-class from it.
You cannot instantiate the class.
All methods must be abstract as well.
The class definition contains the abstract keyword.

23. Which kind of data type are int, float, and double?

wrapper
boolean
primitive
user defined

24. An _______ is an action initiated by a user interaction with a GUL.

event
instance
occurrence
action

25. The keyword ________ specifies that an object or variable cannot be modified after it has been initialized.

static
final
constant
the end

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