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Ch8 Java

38 Questions  I  By Bing22
ch8 java

  
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Question Excerpt

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1.  A package is:
A.
B.
C.
D.
2.   A class within a package must be declared public if
A.
B.
C.
D.
3.  Which of the following is false?
A.
B.
C.
D.
4.   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.
5.   Consider the statement    package com.deitel.jhtp6.ch08;    Which of the following is true?
A.
B.
C.
D.
6.   Which of the following does not contribute to improved software reusability?
A.
B.
C.
D.
7.  When should a program explicitly use the this reference?
A.
B.
C.
D.
8.  Which method returns an array of the enum’s constants?
A.
B.
C.
D.
9.  8.5 Q2: Constructors:
A.
B.
C.
D.
10.   Which statement is false?
A.
B.
C.
D.
11.   Composition is sometimes referred to as a(n) ________.
A.
B.
C.
D.
12.   Instance variables declared final do not or cannot:
A.
B.
C.
D.
13.  Which statement is false?
A.
B.
C.
D.
14.  Which of the following should usually be private?
A.
B.
C.
D.
15.  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.
16.  The import declaration import java.util.*; is known as a ________.
A.
B.
C.
D.
17.  Set methods are also commonly called ________ methods and get methods are also commonly called ________ methods.
A.
B.
C.
D.
18.  When no access modifier is specified for a method or variable, the method or variable:
A.
B.
C.
D.
19.  A final field should also be declared ________ if it is initialized in its declaration.
A.
B.
C.
D.
20.  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.
21.  Which of the following is false?
A.
B.
C.
D.
22.   Which syntax imports all static members of class Math?
A.
B.
C.
D.
23.  Which of the following statements is true?
A.
B.
C.
D.
24.  When implementing a method, use the class’s set and get methods to access the class’s ________ data.
A.
B.
C.
D.
25.   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.
26.  Abstract Data Types:
A.
B.
C.
D.
27.  The static method ________ of class String returns a formatted String.
A.
B.
C.
D.
28.   The import declaration import *; ________.
A.
B.
C.
D.
29.  Using public set methods provides data integrity if:
A.
B.
C.
D.
30.  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.
31.  Static class variables:
A.
B.
C.
D.
32.  Which statement is false?
A.
B.
C.
D.
33.  Having a this reference allows:
A.
B.
C.
D.
34.   A programmer-defined constructor that has no arguments is called a ________.
A.
B.
C.
D.
35.   Java programmers do not focus on:
A.
B.
C.
D.
36.   A constructor cannot:
A.
B.
C.
D.
37.  : enum types are implicitly ________ and enum constants are implicitly ________.
A.
B.
C.
D.
38.   The term “information hiding” refers to:
A.
B.
C.
D.
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