Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 2, Problem 12PE
File names and extensions. Write a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In C write a program that takes a file name and two strings as command
line arguments, and writes the longer of the two strings to the file with the
given name. If the given strings are the same length, write the first string
given to the file.
If the user does not provide the correct number of command line arguments,
print an error message and exit the program with a non-zero exit code.
Q: At a certain school, student email addresses end with @student.college.edu, while professor email addresses end with @prof.college.edu. Write a program in python that first asks the user how many email addresses they will be entering, and then has the user enter those addresses. After all the email addresses are entered, the program should print out a message indicating either that all the addresses are student addresses or that there were some professor addresses entered.
PLEASE COMMENT CODE
In a python program, create a new file and call it “ tracking”. Write to it four lines each contains information about an order like this:
1-00654-021 Dell charger Toronto-WEST 99-49-ZAD011-76540-022 ASUS battery Milton-EAST 34-56-CBH561-09239-026 HP HD Scarborough-NORTH 12-98-AZC451-12349-029 Mac FD North York-LAWRENCE 34-49-ZWL01Add the file two more lines: 1-34567-055 Lenovo SSD Milton-ON 34-09-MT04 1-90432-091 Lenovo battery Oakville-ON 78-KL98
Define a function that searches for a brand (e.g. Dell, ASUS, etc.). Test the function in your program.
Chapter 2 Solutions
Big Java Late Objects
Ch. 2.1 - Declare a variable suitable for holding the number...Ch. 2.1 - What is wrong with the following variable...Ch. 2.1 - Declare and initialize two variables, unitPrice...Ch. 2.1 - Prob. 4SCCh. 2.1 - Some drinks are sold in four-packs instead of...Ch. 2.1 - Prob. 6SCCh. 2.1 - Prob. 7SCCh. 2.1 - Prob. 8SCCh. 2.1 - How would you explain assignment using the parking...Ch. 2.2 - A bank account earns interest once per year. In...
Ch. 2.2 - In Java, how do you compute the side length of a...Ch. 2.2 - The volume of a sphere is given by V=43r3 If the...Ch. 2.2 - Prob. 13SCCh. 2.2 - Prob. 14SCCh. 2.3 - Write statements to prompt for and read the users...Ch. 2.3 - What is wrong with the following statement...Ch. 2.3 - Prob. 17SCCh. 2.3 - What is problematic about the following statement...Ch. 2.3 - What is the output of the following statement...Ch. 2.3 - Using the printf method, print the values of the...Ch. 2.4 - Prob. 21SCCh. 2.4 - Suppose the architect specifies a pattern with...Ch. 2.4 - A robot needs to tile a floor with alternating...Ch. 2.4 - For a particular car, repair and maintenance costs...Ch. 2.4 - The shape of a bottle is approximated by two...Ch. 2.5 - What is the length of the string "Java Program"?Ch. 2.5 - Consider this string variable. String str = "Java...Ch. 2.5 - Use string concatenation to turn the string...Ch. 2.5 - Prob. 29SCCh. 2.5 - Prob. 30SCCh. 2 - Write declarations for storing the following...Ch. 2 - What is the value of mystery after this sequence...Ch. 2 - What is wrong with the following sequence of...Ch. 2 - Write the following mathematical expressions in...Ch. 2 - Write the following Java expressions in...Ch. 2 - What are the values of the following expressions?...Ch. 2 - What are the values of the following expressions,...Ch. 2 - What are the values of the following expressions?...Ch. 2 - Assuming that a and b are variables of type int,...Ch. 2 - Suppose direction is an integer angle between 0...Ch. 2 - Find at least five compile-time errors in the...Ch. 2 - Find three run-time errors in the following...Ch. 2 - Consider the following code segment. double...Ch. 2 - Explain the differences between 2, 2.0, 2, 2, and...Ch. 2 - Explain what each of the following program...Ch. 2 - Write pseudocode for a program that reads a word...Ch. 2 - Write pseudocode for a program that reads a name...Ch. 2 - Write pseudocode for a program that computes the...Ch. 2 - Modify the pseudocode for the program in How To...Ch. 2 - Prob. 20RECh. 2 - You are cutting off a piece of pie like this,...Ch. 2 - The following pseudocode describes how to obtain...Ch. 2 - Suppose you are given a string str and two...Ch. 2 - Prob. 24RECh. 2 - For each of the following computations in Java,...Ch. 2 - Prob. 26RECh. 2 - This chapter contains a number of recommendations...Ch. 2 - Write a program that displays the dimensions of a...Ch. 2 - Write a program that computes and displays the...Ch. 2 - Write a program that reads a number and displays...Ch. 2 - Write a program that prompts the user for two...Ch. 2 - Enhance the output of Exercise E2.4 so that the...Ch. 2 - Write a program that prompts the user for a...Ch. 2 - Write a program that prompts the user for a radius...Ch. 2 - Write a program that asks the user for the lengths...Ch. 2 - Improve the program discussed in How To 2.1 to...Ch. 2 - Write a program that helps a person decide whether...Ch. 2 - Write a program that asks the user to input The...Ch. 2 - File names and extensions. Write a program that...Ch. 2 - Write a program that reads a number between 1,000...Ch. 2 - Write a program that reads a number between 1,000...Ch. 2 - Printing a grid. Write a program that prints the...Ch. 2 - Write a program that reads in an integer and...Ch. 2 - Write a program that reads two times in military...Ch. 2 - Writing large letters. A large letter H can be...Ch. 2 - Write a program that transforms numbers 1, 2, 3, ,...Ch. 2 - Write a program that prints a Christmas tree:...Ch. 2 - Easter Sunday is the first Sunday after the first...Ch. 2 - In this project, you will perform calculations...Ch. 2 - The following pseudocode describes how a bookstore...Ch. 2 - The following pseudocode describes how to turn a...Ch. 2 - The following pseudocode describes how to extract...Ch. 2 - Giving change. Implement a program that directs a...Ch. 2 - An online bank wants you to create a program that...Ch. 2 - A video club wants to reward its best members with...Ch. 2 - Consider the following circuit. Write a program...Ch. 2 - The dew point temperature Td can be calculated...Ch. 2 - The pipe clip temperature sensors shown here are...Ch. 2 - Prob. 12PPCh. 2 - Consider the following tuning circuit connected to...Ch. 2 - According to the Coulomb force law, the electric...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Fill in the blanks in each of the following statements:
a) The logical unit of the computer that receives info...
C++ How to Program (10th Edition)
Efficient Computation of Fibonacci Numbers Modify the application in Code Listing 16-18 by replacing the recurs...
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Consider the adage Never ask a question for which you do not want the answer. a. Is following that adage ethica...
Experiencing MIS
In the following exercises, write a program to carry out the task. The program should use variables for each of...
Introduction to Programming Using Visual Basic (10th Edition)
(Printing Numbers in Various Field Widths) Write a program to test the results of printing the integer value 12...
C How to Program (8th Edition)
Modify your printDetai 1 s method to include printing the reference number. However, the method should print th...
Objects First with Java: A Practical Introduction Using BlueJ (6th 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
- A photographer is organizing a photo collection about the national parks in the US and would like to annotate the information about each of the photos into a separate set of files. Write a program that reads the name of a text file containing a list of photo file names. The program then reads the photo file names from the text file, replaces the "_photo.jpg" portion of the file names with "_info.txt", and outputs the modified file names. Assume the unchanged portion of the photo file names contains only letters and numbers, and the text file stores one photo file name per line. If the text file is empty, the program produces no output. Ex: If the input of the program is: ParkPhotos.txtand the contents of ParkPhotos.txt are:…arrow_forwardA photographer is organizing a photo collection about the national parks in the US and would like to annotate the information about each of the photos into a separate set of files. Write a program that reads the name of a text file containing a list of photo file names. The program then reads the photo file names from the text file, replaces the "_photo.jpg" portion of the file names with "_info.txt", and outputs the modified file names. Assume the unchanged portion of the photo file names contains only letters and numbers, and the text file stores one photo file name per line. If the text file is empty, the program produces no output. Ex: If the input of the program is: ParkPhotos.txt and the contents of ParkPhotos.txt are: Acadia2003_photo.jpg AmericanSamoa1989_photo.jpg BlackCanyonoftheGunnison1983_photo.jpg CarlsbadCaverns2010_photo.jpg CraterLake1996_photo.jpg GrandCanyon1996_photo.jpg IndianaDunes1987_photo.jpg LakeClark2009_photo.jpg Redwood1980_photo.jpg…arrow_forwardYou are given a filename. Read the names in the file and output only the initials. For example, if the filename is "data.txt", and the file content in "data.txt" is Dumond, Kristin Larson, Lois the output should be: KD LLarrow_forward
- In python, rite a recursive function, displayFiles, that expects a pathname as an argument. The path name can be either the name of a file or the name of a directory. If the pathname refers to a file, its filepath is displayed, followed by its contents, like so: File name: file_path Lorem ipsum dolor sit amet, consectetur adipiscing elit... Otherwise, if the pathname refers to a directory, the function is applied to each name in the directory, like so: Directory name: directory_path File name: file_path1 Lorem ipsum dolor sit amet... File name: file_path2 Lorem ipsum dolor sit amet... ... Test this function in a new program.arrow_forwardPython: I am trying to write a simple GUI based program with two input fields “Directory/filename” and “word” next to each other and one output text field below. Using recursion the program should go through all the files and folders searching for the entered word. If a match is found the path to the file should be printed in the text field + the content of line the word is found in . It should also print how many folders and files has been searched and how many times the word was found. Any ideas?arrow_forwardYou have been asked to develop the new system. You are to write an application to assign seats in an airline. Assume a small airplane with 28 seats (7 rows 4 wide) as follows: 1 A B C D 2 A B C D 3 A B C D 4 A B C D 5 A B C D 6 A B C D 7 A B CD The program should display the seat pattern, with an X marking the seats already assigned. 1 X B C D 2 A X C D 3 A B C D 4 A B X D 5 A B C D 6 A B C D 7 A B C D The program then requests a choice of seat. If the seat if available,then the seating display is updated. Otherwise, the program requests another choice of seat. If the user types in a seat that is already assigned, the program should say that that seat is occupied and ask for another choice. This continues until all seats are filled or until the user says that the program should end.arrow_forward
- Hi there, could you help me with this c++ hw ? with explanation please! 2. Develop a program that asks for the user's name, phone number, and address. The program then saves all information in a data file (each information in one line) named list.txt. Finally, the program reads the information from the file and displays it on the screen in the following format:Name: User's Name Phone Number: User's Phone Number Address: User's Street Address User's City, State, and Zip Codearrow_forwardComputer Science C++ Create a text file "input.txt" with a certain amount of integers (you decide how many). Write a program that reads these numbers from the file, adds them, and when you have reached the end of the file, calculates the average of these numbers. Print a message and the average to the console. Code this program twice, demonstrating the two methods to detect the end of the file, part A: reading a value from Instream and storing it (boolean expression) in the while loop part B: using the eof() member functionarrow_forwardQ3: Write a C# program that reads two files (One.txt, Two.txt), where the first file contains the names of teachers and the other contains their addresses. Then, put the information (name and addresses) of the teachers to "Three.txt" file in the following form ">:>".arrow_forward
- ⦁ Perfect Pizza wants to install a system to record orders for pizza and chicken wings. When regular customers call Perfect Pizza on the phone, they are asked their phone number. When the number is typed into a computer, the name, address, and last order date is automatically brought up on the screen. Once the order is taken, the total, including tax and delivery, is calculated. Then the order is given to the cook. A receipt is printed. Occasionally, special offers (coupons) are printed so the customer can get a discount. Drivers who make deliveries give customers a copy of the receipt and a coupon (if any). Weekly totals are kept for comparison with last year’s performance. ⦁ Write a summary of business activities for taking an order at Perfect Pizza.⦁ Draw a context-level data flow diagram for Perfect Pizza⦁ Explode the context-level diagram in b showing all the major processes. Call this Diagram 0. ⦁ Draw a logical child diagram for Diagram 0 in c for the process…arrow_forwardCode should be in Python. A photographer is organizing a photo collection about the national parks in the US and would like to annotate the information about each of the photos into a separate set of files. Write a program that reads the name of a text file containing a list of photo file names. The program then reads the photo file names from the text file, replaces the "_photo.jpg" portion of the file names with "_info.txt", and outputs the modified file names. Assume the unchanged portion of the photo file names contains only letters and numbers, and the text file stores one photo file name per line. If the text file is empty, the program produces no output. (Examples in image)arrow_forwardYou develop a Python application for your school.You need to read and write data to a text file. If the file does not exist, it must be created. If the file has content, the content must be removed.Which code should you use? Group of answer choices C. open(“local_data”, “w+”) D. open(“local_data”, “w”) A. open(“local_data”, “r”) B. open(“local_data”, “r+”arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Files & File Systems: Crash Course Computer Science #20; Author: CrashCourse;https://www.youtube.com/watch?v=KN8YgJnShPM;License: Standard YouTube License, CC-BY
UNIX Programming (Part - 10) The File System (Directories and Files Names); Author: ITUTEES;https://www.youtube.com/watch?v=K35faWBhzrw;License: Standard Youtube License