Java Programming-Chp. 4 More Object Concepts

Question 1

In a Java _____ statement, you use a wildcard symbol to represent all the classes in a package.

Accepted Answer

import

Question 2

Within any class or method, the code between a pair of curly braces is called a(n) ____.

Accepted Answer

block

Question 3

If a class’s only constructor requires an argument, you must provide an argument for every

Accepted Answer

object of the class that you create.

Question 4

The keyword ____ indicates that a field value is unalterable

Accepted Answer

final

Question 5

A method can receive ____ arguments, even if it is defined as needing double arguments

Accepted Answer

integer

Question 6

Useful when working with dates and time

Accepted Answer

GregorianCalendar

Question 7

Created using the keyword final

Accepted Answer

constant

Question 8

An illegal action

Accepted Answer

redeclaring a variable

Question 9

A(n) ______ begins immediately after the method declaration and ends at the end of the method.

Accepted Answer

outside block

Question 10

A locally declared variable always _ another variable with the same name elsewhere in the class

Accepted Answer

masks

Question 11

Methods associated with individual objects

Accepted Answer

instance methods

Question 12

When you pass a(n) ____________________, you pass a memory address.

Accepted Answer

reference

Question 13

Using one term to indicate diverse meanings

Accepted Answer

overloading

Question 14

The reference to an object that is passed to any object’s nonstatic class method is called __.

Accepted Answer

this reference

Question 15

Another name for a nonstatic member class is a(n) ____.

Accepted Answer

inner class

Question 16

A(n) ____________________ is simply a folder that provides a convenient grouping for classes.

Accepted Answer

package

Question 17

Variable comes into existence

Accepted Answer

comes into scope

Question 18

arguments to initialize field values, but you can also use arguments for any other purpose.

Accepted Answer

You can use constructor

Question 19

When you instantiate an object from a class, __is reserved for each instance field in the class

Accepted Answer

memory

Question 20

which indicates that it can be replaced by any set of characters.

Accepted Answer

You can use the asterisk (*) as a(n) wildcard symbol,

Question 21

Defines mathematical constants such as PI

Accepted Answer

Math class

Question 22

When they have the same name, variables within ____ of a class override the class’s fields

Accepted Answer

methods

Question 23

Must be explicitly named in an import statement

Accepted Answer

optional classes

Question 24

____ variables are variables that are shared by every instantiation of a class.

Accepted Answer

Class

Question 25

The compiler determines which version of a method to call by the method’s ____.

Accepted Answer

signature

Question 26

No object associated with them

Accepted Answer

class methods

Question 27

A variable comes into existence, or ____, when you declare it

Accepted Answer

comes into scope

Question 28

When an object of one class is a data field within another class, they are related by ____.

Accepted Answer

composition

Java Programming-Chp. 4 More Object Concepts

Questions 28

Java Programming-Chp. 4 More Object Concepts

Questions 28