Java: An Introduction to Problem Solving and Programming (8th Edition)
Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Chapter 12, Problem 5P

Write a program that uses a HashMap to compute a histogram of positive numbers entered by the user. The HashMap’s key should be the number that is entered, and the value should be a counter of the number of times the key has been entered so far. Use −1 as a sentinel value to signal the end of user input. For example, if the user inputs:

5

12

3

5

5

3

21

−1

then the program should output the following (not necessarily in this order):

The number 5 occurs 2 times.

The number 5 occurs 3 times.

The number 12 occurs 1 times.

The number 21 occcrs 1 times.

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IN JAVA Alice and Bob are playing a board game with a deck of nine cards. For each digit between 1 to 9, there is one card with that digit on it. Alice and Bob each draw two cards after shuffling the cards, and see the digits on their own cards without revealing the digits to each other. Then Alice gives her two cards to Bob. Bob sees the digits on Alice’s cards and lays all the four cards on the table in increasing order by the digits. Cards are laid facing down. Bob tells Alice the positions of her two cards. The goal of Alice is to guess the digits on Bob’s two cards. Can Alice uniquely determine these two digits and guess them correctly? Input The input has two integers p,q (1≤p<q≤9) on the first line, giving the digits on Alice’s cards. The next line has a string containing two ‘A’s and two ‘B’s, giving the positions of Alice’s and Bob’s cards on the table. It is guaranteed that Bob correctly sorts the cards and gives the correct positions of Alice’s cards. Output If Alice can…
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Chapter 12 Solutions

Java: An Introduction to Problem Solving and Programming (8th Edition)

Ch. 12.1 - Prob. 12STQCh. 12.2 - Prob. 13STQCh. 12.2 - Prob. 14STQCh. 12.2 - Prob. 15STQCh. 12.2 - Prob. 16STQCh. 12.3 - Prob. 17STQCh. 12.3 - Prob. 18STQCh. 12.3 - Prob. 19STQCh. 12.3 - Write a definition of a method isEmpty for the...Ch. 12.3 - Prob. 21STQCh. 12.3 - Prob. 22STQCh. 12.3 - Prob. 23STQCh. 12.3 - Prob. 24STQCh. 12.3 - Redefine the method getDataAtCurrent in...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.4 - Revise the definition of the class ListNode in...Ch. 12.4 - Prob. 30STQCh. 12.5 - What is the purpose of the FXML file?Ch. 12.5 - Prob. 32STQCh. 12 - Repeat Exercise 2 in Chapter 7, but use an...Ch. 12 - Prob. 2ECh. 12 - Prob. 3ECh. 12 - Repeat Exercises 6 and 7 in Chapter 7, but use an...Ch. 12 - Write a static method removeDuplicates...Ch. 12 - Write a static method...Ch. 12 - Write a program that will read sentences from a...Ch. 12 - Repeat Exercise 12 in Chapter 7, but use an...Ch. 12 - Write a program that will read a text file that...Ch. 12 - Revise the class StringLinkedList in Listing 12.5...Ch. 12 - Prob. 12ECh. 12 - Write some code that will use an iterator to...Ch. 12 - Prob. 14ECh. 12 - Write some code that will use an iterator to...Ch. 12 - Prob. 17ECh. 12 - Revise the method selectionSort within the class...Ch. 12 - Repeat the previous practice program, but instead...Ch. 12 - Repeat Practice Program 1, but instead write a...Ch. 12 - Write a program that allows the user to enter an...Ch. 12 - Write a program that uses a HashMap to compute a...Ch. 12 - Write a program that creates Pet objects from data...Ch. 12 - Repeat the previous programming project, but sort...Ch. 12 - Repeat the previous programming project, but read...Ch. 12 - Prob. 9PPCh. 12 - Prob. 10PPCh. 12 - Prob. 11PPCh. 12 - Prob. 12PPCh. 12 - Prob. 13PPCh. 12 - Prob. 14PPCh. 12 - Prob. 15PP

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