Which of the following is not a component of a variable declaration

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

 

 

 

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