Question Details

Question
Question 1. Question :
Which of the following is NOT a component of a variable declaration statement?
Data type identifier
Symbolic constant
Variable name
Ending semicolon
Question 2. Question :
A __________ is a named memory location that you can use to store a value.
cast
variable
reference
primitive
Question 3. Question :
In a __________ environment, you can change directories using the cd command. For example, to change to a directory named MyClasses, you type cd MyClasses and press Enter.
Windows
Java
graphical
DOS
Question 4. Question :
__________ variables are variables that are shared by every instantiation of a class.
Integer
Instance
Class
Time
Question 5. Question :
You can store any character, including nonprinting characters such as a backspace or a tab, in a(n) __________ variable.
int
char
boolean
set
Question 6. Question :
When an application contains just one version of a method, you can call the method using a(n) __________ of the correct data type.
parameter
scope
output
constructor

Question 7. Question :
A(n) __________ variable can hold only one of two values: true or false.
integer
Boolean
true
comparison
Question 8. Question :
A method can receive __________ arguments, even if it is defined as needing double arguments.
string
integer
constructor
send
Question 9. Question :
A unique identifier is most likely used as a __________ key in a database.
special
public
static
primary
Question 10. Question :
If a compiler detects a violation of language rules, it refuses to translate the class to __________.
an application
a logic error
machine code
Java
Question 11. Question :
__________ refers to the hiding of data and methods within an object.
Instance
Inheritance
Passed
Encapsulation
Question 12. Question :
In Java, when a numeric variable is concatenated to a String using the __________, the entire expression becomes a String.
plus sign
equal sign
concatenate statement
string statement
Question 13. Question :
After a successful compile, you can run the class file on any computer that has a __________.
Java language interpreter
web browser
text editor
DOS
Question 14. Question :
A(n) __________ variable is known only within the boundaries of the method.
method
local
double
instance
Question 15. Question :
A locally declared variable always __________ another variable with the same name elsewhere in the class.
creates
masks
deletes
uses
Question 16. Question :
A __________ is an error not detected until the program asks the computer to do something wrong or even illegal, while executing.
syntax error
runtime error
package
Java API
Question 17. Question :
The percent sign is the __________ operator.
remainder
remaining
percentage
integer division
Question 18. Question :
A data item is __________ when it cannot be changed while a program is running.
variable
constant
primitive
literal
Question 19. Question :
A __________ data type can hold 14 or 15 significant digits of accuracy.
double
float
char
boolean
Question 20. Question :
Java contains a class named __________ that allows you to produce dialog boxes.
JBox
JOptionPane
JDialog
JGUI