Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
3rd Edition
ISBN: 9780134038179
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 16TF
True or False: You cannot create an array of generic class objects.
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True or False?
Instantiating an array of objects reserves room to store references only.
Define a class called Book. The Book class should store attributes such as the title, ISBN, author, edition, publisher, and year of publication. These attributes must be private.
Provide public get/set methods in this class to access these attributes. Test your Book class by creating several books and displaying the attributes.
Define a class called Bookshelf, which contains only a main() method. The Bookshelf class must create a dozen (12) Book objects with distinct attributes, and it must store them in an ArrayList of Books.
The Bookshelf class must then list all the attributes of all books in the ArrayList in the order they were entered into the ArrayList. Create a sort function for Bookshelf, which will sort books in the ArrayList in ascending order by name, and then by year of publication.
1. Write a generic method named array_prod() that takes an array of a generic type are returns the product of the values in the elements in the array. Make sure that the generic type extends the Number class. The Number class is defined in the java.lang package.
2. Complete the main() method to find the products of the elements in the provided arrays. Print the results in the main method using 3 decimals.
Chapter 18 Solutions
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Ch. 18.1 - Prob. 18.1CPCh. 18.1 - When ArrayList is used as a non-generic class, why...Ch. 18.1 - Suppose we use the following statement to...Ch. 18.1 - Assume we have used the statement shown in...Ch. 18.2 - Prob. 18.5CPCh. 18.2 - Prob. 18.6CPCh. 18.2 - Prob. 18.7CPCh. 18.2 - Prob. 18.8CPCh. 18.3 - Prob. 18.9CPCh. 18.3 - Prob. 18.10CP
Ch. 18.3 - Prob. 18.11CPCh. 18.3 - Prob. 18.12CPCh. 18.3 - Prob. 18.13CPCh. 18.3 - Prob. 18.14CPCh. 18.4 - Prob. 18.15CPCh. 18.5 - Prob. 18.16CPCh. 18.5 - Prob. 18.17CPCh. 18.6 - Prob. 18.18CPCh. 18.6 - Prob. 18.19CPCh. 18.6 - Prob. 18.20CPCh. 18.8 - Prob. 18.21CPCh. 18.8 - Prob. 18.22CPCh. 18.9 - Prob. 18.23CPCh. 18.9 - During the process of erasure, when the compiler...Ch. 18.9 - Prob. 18.25CPCh. 18 - Prob. 1MCCh. 18 - Prob. 2MCCh. 18 - Look at the following method header: void...Ch. 18 - Look at the following method header: void...Ch. 18 - Look at the following method header: void...Ch. 18 - Look at the following method header: void...Ch. 18 - Prob. 7MCCh. 18 - Prob. 8MCCh. 18 - Prob. 9MCCh. 18 - The process used by the Java compiler to remove...Ch. 18 - True or False: It is better to discover an error...Ch. 18 - Prob. 12TFCh. 18 - True or False: Type parameters must be single...Ch. 18 - Prob. 14TFCh. 18 - Prob. 15TFCh. 18 - True or False: You cannot create an array of...Ch. 18 - Prob. 17TFCh. 18 - Prob. 18TFCh. 18 - Prob. 1FTECh. 18 - Assume the following is a method header in a...Ch. 18 - public class MyClassT { public static void...Ch. 18 - public class PointT extends Number super Integer {...Ch. 18 - Assume there is a class named Customer. Write a...Ch. 18 - Assume names references an object of the...Ch. 18 - Prob. 3AWCh. 18 - Prob. 4AWCh. 18 - Prob. 5AWCh. 18 - Prob. 6AWCh. 18 - Prob. 7AWCh. 18 - Prob. 1SACh. 18 - Look at the following method header: public T...Ch. 18 - Prob. 3SACh. 18 - Do generic types exist at the bytecode level?Ch. 18 - Prob. 5SACh. 18 - When the compiler encounters a class, interface,...Ch. 18 - Prob. 1PCCh. 18 - Prob. 2PCCh. 18 - Prob. 3PCCh. 18 - Prob. 4PCCh. 18 - Prob. 5PCCh. 18 - Prob. 6PCCh. 18 - Prob. 7PC
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