Data Structures and Algorithms in Java
6th Edition
ISBN: 9781118771334
Author: Michael T. Goodrich
Publisher: WILEY
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Textbook Question
Chapter 1, Problem 25C
Modify the CreditCard class to add a toString() method that returns a String representation of the card (rather than printing it to the console, as done by printSummary). Modify the main method from Code Fragment 1.6 accordingly to use the standard println command.
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public boolean insertBook(Book b) { for(int i=0; i<books.length; i++) { if(books[i] == null) { books[i] = b; return true; } } return false; } public boolean removeBook(Book b) { for(int i=0; i<books.length; i++) { if(books[i].getIsbn().equalsIgnoreCase(b.getIsbn())) { for(int j=i; j<books.length-1; j++) { books[j] = books[j+1]; } return true; } } return false; }
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Chapter 1 Solutions
Data Structures and Algorithms in Java
Ch. 1 - Prob. 1RCh. 1 - Suppose that we create an array A of GameEntry...Ch. 1 - Write a short Java method, isMultiple, that takes...Ch. 1 - Write a short Java method, isEven, that takes an...Ch. 1 - Write a short Java method that takes an integer n...Ch. 1 - Write a short Java method that takes an integer n...Ch. 1 - Write a short Java method that takes an integer n...Ch. 1 - Write a short Java method that counts the number...Ch. 1 - Prob. 9RCh. 1 - Prob. 10R
Ch. 1 - Modify the CreditCard class from Code Fragment 1.5...Ch. 1 - Prob. 12RCh. 1 - Modify the declaration of the first for loop in...Ch. 1 - Prob. 14CCh. 1 - Write a pseudocode description of a method for...Ch. 1 - Write a short program that takes as input three...Ch. 1 - Write a short Java method that takes an array of...Ch. 1 - Prob. 18CCh. 1 - Write a Java program that can take a positive...Ch. 1 - Write a Java method that takes an array of float...Ch. 1 - Write a Java method that takes an array containing...Ch. 1 - Prob. 22CCh. 1 - Write a short Java program that takes two arrays a...Ch. 1 - Modify the CreditCard class from Code Fragment 1.5...Ch. 1 - Modify the CreditCard class to add a toString()...Ch. 1 - Write a short Java program that takes all the...Ch. 1 - Write a Java program that can simulate a simple...Ch. 1 - A common punishment for school children is to...Ch. 1 - The birthday paradox says that the probability...Ch. 1 - (For those who know Java graphical user interface...
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- Consider the program below. Replace the tags _??1_, and _??2_, respectively, by filling in the text fields below, such that method main() prints the following output on the console: 12arrow_forwardImplement a new concat method in the String class you worked on for HW2. The method should return a new String object that represents the text you would end up with if the argument String were "added onto the end of" this String. For example, in the code below, the String object answer should represent the text "bookstore" and true should be printed the screen. char[] bookA = {'b', 'o', 'o', 'k'}; char[] storeA = {'s', 't', 'o', 'r', 'e'}; char[] bookstoreA = {'b', 'o', 'o', 'k', 's', 't', 'o', 'r', 'e'}; String book = new String(bookA); String store = new String(storeA); String bookstore = new String(bookstoreA); String answer = book.concat(store); System.out.println(answer.equals(bookstore)); In the text area below, type in your definition of the concat method. (In other words, type in the code that should replace the //TODO comment.) Your code cannot call any methods. public class String { private char[] data; public String(char[] value) { data = new…arrow_forwardImprove the method printList to print out the details of all publications ordered on the category of the publications, and then on the title within each category. Note: currently there are only 2 categories, i.e. Book and Journal, but the project may be expended by adding other categories, e.g. Newspaper etc. Here are my four classes. public class Database {private ArrayList<Publication> publicationList; // An array list collection of publications /*** Create a new database*/public Database() {publicationList = new ArrayList<Publication>();} /*** Add a publication** @param publication The publication to be added*/public void addPublication(Publication publication) {if (publicationList.contains(publication)) {System.out.println("This publication has already been added to the list: " + publication);} else {publicationList.add(publication);}} /*** Get the total number of publications** @return The total number of publications*/public int getTotal() {return…arrow_forward
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