Ch8 Java

38 Questions  I  By Bing22

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