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Ch8 Java

38 Questions  I  By Bing22
ch8 java

  
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1.  Using public set methods provides data integrity if:
A.
B.
C.
D.
2.  The import declaration import java.util.*; is known as a ________.
A.
B.
C.
D.
3.  Which of the following should usually be private?
A.
B.
C.
D.
4.  Which of the following is false?
A.
B.
C.
D.
5.  When should a program explicitly use the this reference?
A.
B.
C.
D.
6.  A final field should also be declared ________ if it is initialized in its declaration.
A.
B.
C.
D.
7.  Set methods are also commonly called ________ methods and get methods are also commonly called ________ methods.
A.
B.
C.
D.
8.   Composition is sometimes referred to as a(n) ________.
A.
B.
C.
D.
9.  : enum types are implicitly ________ and enum constants are implicitly ________.
A.
B.
C.
D.
10.   A constructor cannot:
A.
B.
C.
D.
11.  When no access modifier is specified for a method or variable, the method or variable:
A.
B.
C.
D.
12.  Which statement is false?
A.
B.
C.
D.
13.  8.5 Q2: Constructors:
A.
B.
C.
D.
14.   Which syntax imports all static members of class Math?
A.
B.
C.
D.
15.  Having a this reference allows:
A.
B.
C.
D.
16.   Which of the following does not contribute to improved software reusability?
A.
B.
C.
D.
17.   Java programmers do not focus on:
A.
B.
C.
D.
18.   The term “information hiding” refers to:
A.
B.
C.
D.
19.  The static method ________ of class String returns a formatted String.
A.
B.
C.
D.
20.  Which of the following statements is true?
A.
B.
C.
D.
21.   Which statement is false?
A.
B.
C.
D.
22.  Static class variables:
A.
B.
C.
D.
23.   Consider the statement    package com.deitel.jhtp6.ch08;    Which of the following is true?
A.
B.
C.
D.
24.  Which of the following is false?
A.
B.
C.
D.
25.  8.2 Q1: The _________ of a class are also called the public services or the public interface that the class provides to its clients.
A.
B.
C.
D.
26.   By default, the classpath consists only of the ________. However, the classpath can be modified by providing the ________ option to the javac compiler.
A.
B.
C.
D.
27.  Abstract Data Types:
A.
B.
C.
D.
28.   A class within a package must be declared public if
A.
B.
C.
D.
29.  The classpath consists of a list of directories or archive files, each separated by a ________ on Windows or a ________ on UNIX/Linux/Max OS X.
A.
B.
C.
D.
30.   A programmer-defined constructor that has no arguments is called a ________.
A.
B.
C.
D.
31.  Which statement is false?
A.
B.
C.
D.
32.  When compiling a class in a package, the javac command-line option ________ causes the javac compiler to create appropriate directories based on the class’s package declaration.
A.
B.
C.
D.
33.   What happens when this is used in a constructor’s body to call another constructor of the same class if that call is not the first statement in the constructor?
A.
B.
C.
D.
34.   Instance variables declared final do not or cannot:
A.
B.
C.
D.
35.  When implementing a method, use the class’s set and get methods to access the class’s ________ data.
A.
B.
C.
D.
36.  Which method returns an array of the enum’s constants?
A.
B.
C.
D.
37.   The import declaration import *; ________.
A.
B.
C.
D.
38.  A package is:
A.
B.
C.
D.
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