Ch8 Java

38 Questions  I  By Bing22

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