Which Following Not Component Variable Declaration Statement

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