Java: An Introduction to Problem Solving and Programming (7th Edition)
7th Edition
ISBN: 9780133766264
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 10, Problem 4P
The Social Security Administration maintains an actuarial life table that contains the probability that a person in the United States will die (http://www.ssa.gov/OACT/STATS/table4c6.html). The death probabilities from this table for 2009 are stored in the file LifeDeathProbability.txt that is included with the book’s source code. There are three values for each row the age, death probability for a male, and death probability for a female. For example, the first five lines are:
0 0.006990 0.005728
1 0.000447 0.000373
2 0.000301 0.000241
3 0.000233 0.000186
4 0.000177 0.000150
This says that a 3-year-old female has a 0 000186 chance of dying that year
Write a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
File names: color_square.py, chessboard.py, test_squares.py
Positions on a chess board are identified by a letter and a number. The letter identifies the column; the number identifies the row. See the image below.
You will provide the functions that allow us to determine:
if a chessboard square is either black or white, given its coordinates.
If the row/column is valid or not for the standard chessboard
For example, if we pass in “d” for the column and 4 for the row, your function that determines color should return the string: “BLACK”. If we pass in "k" for the column to your function that validates columns, that function should return the boolean False.
Requirements:
Your function for validating the column should be able to accept upper or lowercase strings as parameters.
Your functions for validating the row should be able to accept integers or strings as parameters.
Your function that determines black-or-white may assume that the input has been validated prior to us calling…
The names and student numbers of students are save in a text file called stnumbers.txt. Example of the content of the text file:
Peterson
20570856
Johnson
12345678
Suku
87654321
Westley
12345678
Venter
87654321
Mokoena
79012400
Makubela
29813360
Botha
30489059
Bradley
30350069
Manana
30530679
Shabalala
28863496
Smith
87873909
Nilsson
30989698
Makwela
30256607
Govender
30048117
Ntumba
30598303
Ramsamy
29952239
Skosana
29982995
Jameson
30228484
Xulu
29092248
Wasserman
27469352
Bester
28615425
Babane
27154033
Maboya
29897890
Mahlangu
30031338
Majavu
30165970
Myene
30954177
Motaung
30907276
Ramaroka
30804507
Radebe
30007674
Sekake
30017416
Zwane
30038227
Shuro
30238072
Viljoen
28881389
Sithole
45688555
Write a function called displayData() to receive the array and number of elements as parameters and display the names and student numbers of the students with a heading and neatly spaced.
Write a function, isValid(), which receives a number as parameter and determines whether the number…
# Create Custom Transformer
Create a custom transformer, just as we did in the lecture video entitled "Custom Transformers", that performs two computations:
1. Adds an attribute to the end of the numerical data (i.e. new last column) that is equal to $\frac{x_1^3}{x_5}$ for each observation. In other words, for each instance, you will cube the $x_1$ column and then divide by the $x_5$ column.
2. Drops the entire $x_4$ feature column if the passed function argument `drop_x4` is `True` and doesn't drop the column if `drop_x4` is `False`. (See further instructions below.)
You must name your custom transformer class `Assignment4Transformer`. Your class should include an input parameter called `drop_x4` with a default value of `True` that deletes the $x_4$ feature column when its value is `True`, but preserves the $x_4$ feature column when you pass a value of `False`.
This transformer will be used in a pipeline. In that pipeline, an imputer will be run *before* this transformer. Keep…
Chapter 10 Solutions
Java: An Introduction to Problem Solving and Programming (7th Edition)
Ch. 10.1 - Why would anybody write a program that sends its...Ch. 10.1 - When we discuss input, are we referring to data...Ch. 10.1 - What is the difference between a text file and a...Ch. 10.2 - Write some code that will create a stream named...Ch. 10.2 - Prob. 5STQCh. 10.2 - Prob. 6STQCh. 10.2 - Prob. 7STQCh. 10.2 - Write some code that will create a stream named...Ch. 10.2 - Suppose you run a program that writes to the text...Ch. 10.2 - Prob. 10STQ
Ch. 10.3 - Prob. 11STQCh. 10.4 - Write some Java code to create an output stream of...Ch. 10.4 - Give three statements that will write the values...Ch. 10.4 - Give a statement that will close the stream toFile...Ch. 10.4 - What import statement(s) do you use when creating...Ch. 10.4 - Prob. 16STQCh. 10.4 - Give three statements that will read three numbers...Ch. 10.4 - Give a statement that will close the stream...Ch. 10.4 - Can you use writeInt to write a number to a file...Ch. 10.4 - Can you use readUTF to read a string from a text...Ch. 10.4 - Prob. 21STQCh. 10.4 - Prob. 22STQCh. 10.4 - Does the class FileInputStream have a method named...Ch. 10.4 - Does the class FileOutputStream have a constructor...Ch. 10.4 - Does the class ObjectOutputStream have a...Ch. 10.4 - Prob. 26STQCh. 10.4 - Suppose that a binary file contains exactly three...Ch. 10.4 - The following code appears in the program in...Ch. 10.4 - Prob. 29STQCh. 10.5 - Prob. 30STQCh. 10.5 - Prob. 31STQCh. 10.5 - Prob. 32STQCh. 10.5 - Prob. 33STQCh. 10.6 - Prob. 34STQCh. 10.6 - Prob. 35STQCh. 10.6 - Prob. 36STQCh. 10.6 - Prob. 37STQCh. 10 - Write a program that will write the Gettysburg...Ch. 10 - Modify the program in the previous exercise so...Ch. 10 - Write some code that asks the user to enter either...Ch. 10 - Write a program that will record the purchases...Ch. 10 - Modify the class LapTimer, as described in...Ch. 10 - Write a class TelephoneNumber that will hold a...Ch. 10 - Write a class contactInfo to store contact...Ch. 10 - Write a program that reads every line in a text...Ch. 10 - Repeat the previous exercise, but write the new...Ch. 10 - Write a program that will make a copy of a text...Ch. 10 - Suppose you are given a text file that contains...Ch. 10 - Suppose that you have a binary file that contains...Ch. 10 - Suppose that we want to store digitized audio...Ch. 10 - Write a program RecoverSignal that will read the...Ch. 10 - Even though a binary file is not a text file, it...Ch. 10 - Write a program that searches a file of numbers...Ch. 10 - Write a program that reads a file of numbers of...Ch. 10 - The following is an old word puzzle: Name a common...Ch. 10 - The Social Security Administration maintains an...Ch. 10 - The following is a list of scores for a game....Ch. 10 - Write a program that checks a text file for...Ch. 10 - Prob. 5PPCh. 10 - Prob. 6PPCh. 10 - Revise the class Pet, as shown in Listing 6.1 of...Ch. 10 - Write a program that reads records of type Pet...Ch. 10 - Prob. 9PPCh. 10 - Prob. 12PPCh. 10 - Prob. 15PP
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
(Display numbers in a pyramid pattern) Write a nested for loop that prints the following output:
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Describe two properties that each candidate key must satisfy.
Modern Database Management (12th Edition)
Write code that tests the variable x to determine whether it is greater than 0. If x is greater than 0, the cod...
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
What is the difference between floating-point division and integer division?
Starting Out with Python (4th Edition)
A(n) _____ is a set of well-defined steps for performing a task or solving a problem.
Starting Out With Visual Basic (8th Edition)
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
- Binus’s Used Cars, Inc. employs several salespeople. Mr. Robert, the owner of the company, has provided a file that contains sales records for each salesperson for the past month. Each record in the file contains the following two fields: The salesperson’s ID number, as an integer The amount of a sale, as a real number The records are already sorted by salesperson ID. Brewster wants you to design a program that prints a sales report. The report should show each salesperson’s sales and the total sales for that salesperson. The report should also show the total sales for all salespeople for the month. Here is an example of how the sales report should appear:arrow_forwardWe’ve been updating and extending the inventory project to use files and to use arrays. Now it’s time to put it all together. I will give you a file inventory.txt File Contents: Red delicious apples 1.00 25 6 8 10 Assorted bouquets 4.00 50 10 10 0 Camembert cheese 2.00 25 10 12 4 END The file will have the following specifications: Each record consists of two lines. The first line contains the name of the product, which may be more than one word long. The second line contains the wholesale price as a decimal, the markup as a percentage, and three quantities, for counter, shelf, and warehouse. If the first line of a record contains the word END all by itself, that is the end of the file. Your task is to read each record into the program, as a string for the name, and numbers for the price and markup, and as an array of numbers for the quantities. Then calculate the total profit for each item: (wholesale price) * (markup, converted into a decimal) * (total quantity). Print out a report…arrow_forwardPHONE DIRECTORYDescription: Create a phonebook directory that will store the contact numbers of N persons. Your program should allow the user to add, view, delete, and update the contacts in the phonebook. Note that one person can have multiple contact numbers. The program will stop when the user command is ‘X’. Program command and entry should not be case-sensitive. That means commands ‘I’ or ‘i’ and the name “Jacky” or “JACKY” are the same. Each contact number can be 7 digits or 11 digits only. The user should input a string containing the command, name, and contact number(s) (Limit the contact number of each person to three). This string should be broken down into fields in order to separate the different values and store them in their appropriate variables. Use linked list in the implementation. Your node must declare at least four instance variables. Program flow: Command> I Jacky 09211234567 Remarks: New contact has been added. Command> V Jacky Contact…arrow_forward
- A Company wants to produce a product orders report from its product orders file. Each record on the file contains the product number of the item ordered, the product description, the number of units ordered, the retail price per unit, the freight charges per unit, and the packaging costs per unit. Your algorithm is to read the product orders file, calculate the total amount due for each product ordered and print these details on the product orders report. The amount due for each product is calculated as the product of the number of units ordered and the retail price of the unit. A discount of 10% is allowed on the amount due for all orders over GHC100.00. The freight charges and packaging costs per unit must be added to this resulting value to determine the total amount due. Answer should be in pseudo codearrow_forwardIn Python Write a program that reads movie data from a CSV (comma separated values) file and output the data in a formatted table. The program first reads the name of the CSV file from the user. The program then reads the CSV file and outputs the contents according to the following requirements: Each row contains the title, rating, and all showtimes of a unique movie. A space is placed before and after each vertical separator ('|') in each row. Column 1 displays the movie titles and is left justified with a minimum of 44 characters. If the movie title has more than 44 characters, output the first 44 characters only. Column 2 displays the movie ratings and is right justified with a minimum of 5 characters. Column 3 displays all the showtimes of the same movie, separated by a space. Each row of the CSV file contains the showtime, title, and rating of a movie. Assume data of the same movie are grouped in consecutive rows. Ex: If the input of the program is: movies.csv and the contents…arrow_forwardString data type is not allowed you can make use of CString instead (char arrays with null termination). Q1. Create an Input File with the following information regarding to inventory: Item_Id Price Quantity Availability Add atleast 10 records in input file. Where item_id will be of type int , price will be of type double , quantity will be of type int and Availability will be of type char representing the status y for yes the product is available and n for not available. Write a menu driven C++ program to perform the following four tasks in a single file, if user press option 1 the task 1 get solved and so on: 1. Display the Item_Id of the products which are not available in stock on screen. 2. Copy all the available products data in a separate file. 3. Read the original input file and update the price of each item by 10 percent increase in the original price and save the complete information in separate file. 4. Try to save the information processed in part 3 in the original…arrow_forward
- Chapter 7 - Programming Challenge 15 15. World Series Champions If you have downloaded this book’s source code (the companion Web site is available at www.pearsonhighered.com/gaddis), you will find a file named WorldSeriesWinners.txt. This file contains a chronological list of the winning teams in the World Series from 1903 through 2009. (The first line in the file is the name of the team that won in 1903, and the last line is the name of the team that won in 2009. Note that the World Series was not played in 1904 or 1994, so those years are skipped in the file.) Write a program that lets the user enter the name of a team, and then displays the number of times that team has won the World Series in the time period from 1903 through 2009. Tip: Read the contents of the WorldSeriesWinners.txt file into an ArrayList. When the user enters the name of a team, the program should step through the ArrayList, counting the number of times the selected team appears You only need to submit the…arrow_forwardA temperature file consists of five records, each containing a temperature in degrees Fahrenheit. A program is to be written that will read the input temperature, convert it from degrees Fahrenheit to degrees Celsius and print both temperatures in two columns on a report. Column headings, which read ‘Degrees F’ and ‘Degrees C’, are to be printed at the top of the page. What ist he best solution algorithm to successfully implement the above question?arrow_forwardTwo data files are required to evaluate a multiple-choice examination. The first file (booklet.dat) (memo) contains the correct answers. The total number of questions is 50. A sample file is given below: ACBAADDBCBDDAACDBACCABDCABCCBDDABCACABABABCBDBAABD The second file (answer.dat) contains the students’ answers. Each line has one student record that contains the following information: The student’s answers (a total of 50 answers): each answer can be A, B, C, D or * (to represent no answer). There are no blanks between answers. Student ID Student name A sample file is given below: AACCBDBC*DBCBDAAABDBCBDBAA*BCBDD*BABDBCDAABDCBDBDA 6555 MAHMUT CBBDBC*BDBDBDBABABABBBBBABBABBBBD*BBBCBBDBABBBDC** 6448 SINAN ACB*ADDBCBDDAACDBACCABDCABCCBDDABCACABABABCBDBAABD 6559 CAGIL Write a C++ program that counts the total number of correct answers by each student and outputs this information to another file called report.dat. In this file, the student’s IDs, names and the scores must be given. Each…arrow_forward
- PYTHON In order to parse data to start a simulation, users must enter data correctly. Suppose that the simulation requires 2 information from the user, which is called 'soil_key' and 'soil_data.' The user will enter 'soil_key' first, following with 'soil_data.' We need to check if the user enters the 'soil_data' data correctly. All elements in soil data ('soil_data') must be characters defined in the soil keys ('soil_key'). Both soil_key and soil_data are lists. Consider an example: INPUT: soil_key = ['C', 'Clay', ' B', 'Bedrock', ' V', 'Void'] soil_data1 = [ ['V', 'C', 'V'], ['C', 'V', ' '], ['B', 'M', 'B'] ] soil_data2 = [ ['B', 'C', 'V'], ['C', 'V', ' B'], ['B', 'C', 'B'] ] OUTPUT: soil_data1: check data again. Parsing failed! soil_data2: Parsing successfully. Write a python function that checks if the soil data is being entered correctly. Return True and print 'Parsing successfully' for correct data. Otherwise, return False and tells the user 'check data again. Parsing…arrow_forwardThis is a python File Create a program that presents a menu with these options: Add product Sort by quantity (low to high) Print Inventory Quit Read the initial product information from a text file. Remember to ask the user to enter the filename & make sure it exists! The program should NOT product an error if the file isn’t there! Store the product information into a DICTIONARY called prodDict. The dictionary should map the productID (the key for the dictionary) to a LIST that contains description, unitPrice, and quantity. The text file will be structured as shown below, where each line contains the product id, product description, unitPrice and quantity.NOTE: Each entry on the line is separated by a comma and a space. Example textfile: 111, arm chair, 99.99, 5444, desk, 10, 40777, lamp, 20, 5333, credenza, 50.98., 20222,bassinet , 5.59, 10 Example of the empDict after the information shown has been readd and stored:{ 111: [“George Gray”, 10, 40], 222: [“Amy Abrahmson”,…arrow_forwardradius_mean gives the average size of the cells in terms of the radius of circles drawn around each cell in the biopsy. texture_mean provides the amount of variation in light to dark values in an image of the cells. sb.regplot (data = cancer, x = "radius_mean", y = "texture_mean", "lowess = True, line_kws = {"color": "orange"}) --INSERT-- 40 texture_mean 35 20 15 10 10 15 20 radius_mean 25 Provide a brief explanation of what is displayed in this plot. Be sure to comment on the orange line and how it expresses the conditional mean of "texture_mean" for different values of "radius_mean."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
Constants, Variables, Data types, Keywords in C Programming Language Tutorial; Author: LearningLad;https://www.youtube.com/watch?v=d7tdL-ZEWdE;License: Standard YouTube License, CC-BY