Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 7, Problem 4E
Write a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In java
Write a program that uses a 2-D array to store the highest and lowest temperatures for each month of the year. The program should output the average high, average low, and highest and lowest temperatures of the year. Your program must consist of the following methods with their appropriate parameters:a.) getData: This method reads and stores the data in the 2-D array.b.) averageHigh: This method calculates and returns the average high temperature of the year.c.) averageLow: This method calculates and returns the average low temperature of the year.d.) indexHighTemp: This method returns the index of the highest temperature in the array.e.) indexLowTemp: This method returns the index of the lowest temperature in the array.Use the following input:High temp for each month: 30 40 45 60 70 90 89 95 79 90 70 40Low temp for each month: 10 -10 20 30 50 75 85 79 50 80 30 20
2. A store owner wants the total sales for 2020. Write a program that will load an array with 12 months of sales. Use iomanip to make a nice-looking chart that shows the monthly sales, the month with the highest sales, lowest sales, and average for the year sales.
January ……………. $50,000
February…………… $60,000
March ……………….$80,000
April ………………..$106,000
May …………………..$50,000
June ………………..$190,000
July ………………….$900,000
August …………… $102,000
September ………..$70,000
October …………..$700,000
November………… $90,000
December …………$90,000
Total Sales for the year 2020 was ………………….………$
The month with highest sales was ****** at ………..$
The month with lowest sales was ****** at ………...$
The average of sales for the year was ……………………$
C++
9. Complete a program in a class ToyCounter that computes the cost of toys sold in a shop.
Five kinds of toys-Zen, Leo, Star, Sam, and Barry-are stocked and cost, respectively,
RM0.75, RM0.50, RM1.25, RM0.80 and RMO.75 per toy. Create an array of strings that
holds the names of these toys. Create another array that holds the cost of each
corresponding toy. Your program should read the name of a toy and the quantity desired
by a customer. Locate the toy in the name array and use that index to find the cost from
the cost array. Compute and print the total cost of the sale as output in Figure 8 below:
E Output - test (run) #4 x
:unz
What kind of£ toy would you like?
zen
How many toy would you like?
10
zen: 10 at RMO.75 will cost RM7.5
Figure 8
Insert your answer here (Figure 9):
import java.util.Scanner:
public class ToyCounter
public static void main (String [] args)
double totalcost;
int number;
String() toyName - {"zen",
double [] prices = (0.75, 0.50, 1.25, 0.80, 0.75):
"leo", "star",…
Chapter 7 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - Consider the following array: int [] a = new...Ch. 7.1 - What is wrong with the following code to...Ch. 7.1 - Write a complete Java program that reads 20 values...Ch. 7.2 - Write some Java code that will declare an array...Ch. 7.2 - Rewrite the method displayResults of the program...Ch. 7.2 - What output will be produced by the following...Ch. 7.2 - Give the definition of a static method called...
Ch. 7.2 - Give the definition of a static method called...Ch. 7.2 - Prob. 12STQCh. 7.2 - The following method compiles and executes but...Ch. 7.2 - Suppose that we add the following method to the...Ch. 7.3 - Prob. 15STQCh. 7.3 - Replace the last loop in Listing 7.8 with a loop...Ch. 7.3 - Suppose a is an array of values of type double....Ch. 7.3 - Suppose a is an array of values of type double...Ch. 7.3 - Prob. 19STQCh. 7.3 - Consider the partially filled array a from...Ch. 7.3 - Repeat the previous question, but this time assume...Ch. 7.3 - Write an accessor method getEntryArray for the...Ch. 7.4 - Prob. 23STQCh. 7.4 - Write the invocation of the method selectionSort...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - Consider an array b of int values in which a value...Ch. 7.5 - What output is produced by the following code?...Ch. 7.5 - Revise the method showTable in Listing 7.13 so...Ch. 7.5 - Write code that will fill the following array a...Ch. 7.5 - Write a void method called display such that the...Ch. 7.6 - Prob. 33STQCh. 7.6 - Prob. 34STQCh. 7 - Write a program in a class NumberAboveAverage that...Ch. 7 - Write a program in a class CountFamiles that...Ch. 7 - Write a program in a class CountPoor that counts...Ch. 7 - Write a program in a class FlowerCounter that...Ch. 7 - Write a program in a class characterFrequency that...Ch. 7 - Create a class Ledger that will record the sales...Ch. 7 - Define the following methods for the class Ledger,...Ch. 7 - Write a static method isStrictlyIncreasing (double...Ch. 7 - Write a static method removeDuplicates(Character[]...Ch. 7 - Write a static method remove {int v, int [] in}...Ch. 7 - Suppose that we are selling boxes of candy for a...Ch. 7 - Create a class polynomial that is used to evaluate...Ch. 7 - Write a method beyond LastEntry (position) for the...Ch. 7 - Revise the class OneWayNoRepeatsList, as given in...Ch. 7 - Write a static method for selection sort that will...Ch. 7 - Overload the method selectionSort in Listing 7.10...Ch. 7 - Revise the method selectionSort that appears in...Ch. 7 - Prob. 18ECh. 7 - Write a sequential search of an array of integers,...Ch. 7 - Write a static method findFigure (picture,...Ch. 7 - Write a static method blur (double [] [] picture)...Ch. 7 - Write a program that reads integers, one per line,...Ch. 7 - The following code creates a small phone book. An...Ch. 7 - Write the method rotateRight that takes an array...Ch. 7 - The following code creates a ragged 2D array. The...Ch. 7 - Write a program that will read a line of text that...Ch. 7 - A palindrome is a word or phrase that reads the...Ch. 7 - Add a method bubbleSort to the class ArraySorter,...Ch. 7 - Add a method insertionSort to the class...Ch. 7 - The class TimeBook in Listing 7.14 is not really...Ch. 7 - Define a class called TicTacToe. An object of type...Ch. 7 - Repeat Programming Project 10 from Chapter 5 but...Ch. 7 - Prob. 8PPCh. 7 - Write a GUI application that displays a picture of...Ch. 7 - ELIZA was a program written in 1966 that parodied...Ch. 7 - Prob. 11PPCh. 7 - Create a GUI application that draws the following...Ch. 7 - Practice Program 2 used two arrays to implement a...Ch. 7 - Practice Program 5.4 asked you to define Trivia...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Write a short program that declares and initializes double variables one, two, three, four, and five to the val...
Problem Solving with C++ (9th Edition)
A value that is passed into a method when it is called is known as a(n) _______. a. parameter b. argument c. si...
Starting Out with Java: From Control Structures through Objects (6th Edition)
(De Morgans Laws)In this chapter, we discussed the logical operators **&, Ó� Ó�, and !. De Morgan’s Laws can so...
C How to Program (8th Edition)
Write a program that determines the change to be dispensed from a vending machine. An item in the machine can c...
Absolute Java (6th Edition)
(Bar-Chart Printing Program) One interesting application of computers is to display graphs and bar charts. Writ...
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Write a program that uses a two-dimensional array to store the highest and lowest temperatures for each month of the year. The program should output the average high, average low, and highest and lowest temperatures of the year. Your program must consist of the following methods: Method getData: This method reads and stores the data in the two-dimensional array. Method averageHigh: This method calculates and returns the average high temperature of the year. Method averageLow: This method calculates and returns the average low temperature of the year. Method indexHighTemp: This method returns the index of the highest temperature in the array. Method indexLowTemp: This method returns the index of the lowest temperature in the array.arrow_forwardIn this project you will generate a poker hand containing five cards randomly selected from a deck of cards. The names of the cards are stored in a text string will be converted into an array. The array will be randomly sorted to "shuffle" the deck. Each time the user clicks a Deal button, the last five cards of the array will be removed, reducing the size of the deck size. When the size of the deck drops to zero, a new randomly sorted deck will be generated. A preview of the completed project with a randomly generated hand is shown in Figure 7-50.arrow_forwardFor Beginners Java: Write a program that ask the user to enter a list of positive scores until the user enters a negative score to terminate the input. You need to store these scores in an array. You can assume the maximum number of scores the user may enter is 50. However, you need to keep track of the actual number of scores entered. Write 2 methods: 1. calculateAverage(): this method takes the list of scores and return the average score. 2. countPerfectScores(): this method takes the list of scores and return the number of perfect scores (100). The main program reads the input and calls these methods and print the results. Please make sure you write a comment line to document what your method does.arrow_forward
- Implement this program to understand use of Arrays in real world examples. A small airline has just purchased a computer for its new automated reservations system. You have been asked to develop the new system. You are to write an application to assign seats on each flight of the airline’s only plane (capacity: 10 seats). Your application should display the following alternatives: Please type 1 for First Class and Please type 2 for Economy. If the user types 1, your application should assign a seat in the first-class section (seats 1–5). If the user types 2, your application should assign a seat in the economy section (seats 6–10). Your application should then display a boarding pass indicating the person’s seat number and whether it is in the first-class or economy section of the plane. Use a one-dimensional array of primitive type boolean to represent the seating chart of the plane. Initialize all the elements of the array to false to indicate that all the…arrow_forwardThe Lo Shu Magic Square is a grid with 3 rows and 3 columns shown below. The Lo Shu Magic Square has the following properties: The grid contains the numbers 1 – 9 exactly The sum of each row, each column and each diagonal all add up to the same number. This is shown below: Write a program that simulates a magic square using 3 one dimensional parallel arrays of integer type. Do not use two-dimensional array. Each one the arrays corresponds to a row of the magic square. The program asks the user to enter the values of the magic square row by row and informs the user if the grid is a magic square or not. Processing Requirements - c++ Use the following template to start your project: #include<iostream> using namespace std; // Global constants const int ROWS = 3; // The number of rows in the array const int COLS = 3; // The number of columns in the array const int MIN = 1; // The value of the smallest number const int MAX = 9; // The value of the largest number //…arrow_forwardThe Lo Shu Magic Square is a grid with 3 rows and 3 columns shown below. The Lo Shu Magic Square has the following properties: The grid contains the numbers 1 – 9 exactly The sum of each row, each column and each diagonal all add up to the same number. This is shown below: Write a program that simulates a magic square using 3 one dimensional parallel arrays of integer type. Do not use two-dimensional array. Each one the arrays corresponds to a row of the magic square. The program asks the user to enter the values of the magic square row by row and informs the user if the grid is a magic square or not. Project Specifications Input for this project: Values of the grid (row by row) Output for this project: Whether or not the grid is magic square Processing Requirements Use the following template to start your project: #include<iostream> using namespace std; // Global constants const int ROWS = 3; // The number of rows in the array const int COLS = 3; // The number of columns…arrow_forward
- Write a program that lets the user enter the total rainfall for each of 12 months (starting with January) into an array of doubles. The program should calculate and display (in this order): the total rainfall for the year, the average monthly rainfall, and the months with the highest and lowest amounts. Months should be expressed as English names for months in the Gregorian calendar, i.e.: January, February, March, April, May, June, July, August, September, October, November, December. Do not accept negative numbers for monthly rainfall figures. When a negative value is entered, the program outputs "invalid data (negative rainfall) -- retry" and attempts to reread the value. NOTE: Decimal values should be displayed using default precision, i.e. do not specify precision.arrow_forwardCode an exam in Java that repeatedly asks the user to enter the capital for a province in Canada. Then, the program should report whether the answer is correct. Eventually, you must display how many answers the user guessed correctly.The requirements are as follows: - Use a 2D array to hold the provinces and their capitals (as implied by the table below)- Answers are not case-sensitive (e.g. Toronto and tOrOnto are considered the same)arrow_forwardWrite a program to create an answer sheet to read the student’s answers for a ten (10) item exam. It should then display a message indicating the score and remarks whether the student passed or failed the exam. (A student must correctly answer 6 of the 10 questions to pass the exam.) Here are the correct answers (key to correction), which should be initialized and stored in an array: TRUE FALSE TRUE FALSE FALSE FALSE TRUE TRUE TRUE FALSE PLEAS USE ARRAY OF STRINGSarrow_forward
- JAVAWrite a program that searches person's name and display all matched name. For example, if a user inputs the letter "Davis", the program searches all name which includes "Davis" in an array. Then, display all matched names on the screen. You must declare a single dimensional array which has all people’s name. Use methods of string classarrow_forwardWrite a program that uses a 2-D array to store the highest and lowest temperatures for each month of the year. The program should output the average high, average low, and highest and lowest temperatures of the year. Your program must consist of the following methods with their appropriate parameters: a.) getData: This method reads and stores the data in the 2-D array. b.) averageHigh: This method calculates and returns the average high temperature of the year. c.) averageLow: This method calculates and returns the average low temperature of the year. d.) indexHighTemp: This method returns the index of the highest temperature in the array. e.) indexLowTemp: This method returns the index of the lowest temperature in the array. Use the following input: High temp for each month: 30 40 45 60 70 90 89 95 79 90 70 40 Low temp for each month: 10 -10 20 30 50 75 85 79 50 80 30 20arrow_forwardThe local Driver’s License Office has asked you to write a program that grades the written portion of the driver’s license exam. The exam has 20 multiple choice questions. Here are the correct answers: B D A A C A B A C D B C D A D C C B D A A student must correctly answer 15 of the 20 questions to pass the exam. Write a class named DriverExam that holds the correct answers to the exam in an array field. The class should also have an array field that holds the student’s answers. The class should have the following methods: • passed. Returns true if the student passed the exam, or false if the student failed • totalCorrect. Returns the total number of correctly answered questions • totalIncorrect. Returns the total number of incorrectly answered questions • questionsMissed. An int array containing the question numbers of the questions that the student missed Demonstrate the class in a complete program that asks the user to enter a student’s answers, and then displays the…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
9.1: What is an Array? - Processing Tutorial; Author: The Coding Train;https://www.youtube.com/watch?v=NptnmWvkbTw;License: Standard Youtube License