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
Videos
Textbook Question
Chapter 10.2, Problem 9STQ
Suppose you run a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Write some code that will create a stream named outStream that is anobject of the class PrintWriter and that connects this stream to a textfile named sam.txt so that your program can send output to the file. Ifthe file sam.txt does not exist, create a new empty file. However, if a filenamed sam.txt already exists, erase its old contents so the program canstart with an empty file with that name.
As in Self-Test Exercise 5, write some code that will create a stream namedoutStream that is a member of the class PrintWriter, and that connects thisstream to a text file named sam so that your program can send output to the file.This time, however, do it in such a way that, if the file sam already exists, the oldcontents of sam will not be lost, and the program output will be written after theold contents of the file.
Write some code that will create a stream named fileIn that is a member ofthe class BufferedReader and that connects the stream to a text file namedjoe so that your program can read input from the text file joe.
Chapter 10 Solutions
Java: An Introduction to Problem Solving and Programming (8th 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 - 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. 12PP
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
The following code transposes the elements of an M M array, where M is a constant defined by #define. When com...
Computer Systems: A Programmer's Perspective (3rd Edition)
Private Sub Handles btnOutput.Click
End Sub
Introduction To Programming Using Visual Basic (11th Edition)
Extreme programming expresses user requirements as stories, with each story written on a card. Discuss the adva...
Software Engineering (10th Edition)
Self-Test Exercise 18 asked you to overload the operator and the operator for a class Percent. Complete and t...
Problem Solving with C++ (10th Edition)
Retail Item Class Write a class named RetailItem that holds data about an item in a retail store. The class sho...
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
In what year was Plankalkl designed? In what year was that design published?
Concepts Of Programming Languages
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 complete program that uses an ifstream object to read integers from a file called numbers.txt, and an ofstream object to write into a file called evens.txt.Your program should have loop that reads each integer from the input file, then writes it into the output file if it is an even number. Write each even number in na separate line.Make sure to close both files before your program terminates.arrow_forwardWrite a complete program that uses an ifstream object to read integers from a file called numbers.txt, and an ofstream to write into a file called doubles.txtYour program should have a loop that reads five integers from the input file, then writes the doouble of each (x2) into the input file. Write each value in a separate line.Make sure to close both files before your program terminates.arrow_forwardWrite a program that prompts the user for an input file name, reads all words from the input file, and writes the words to the output file named sentences.txt. Start a new line whenever a word ends in a period, question mark, or exclamation mark.arrow_forward
- Create a simple java program that reads all the content in a .txt file, the user will enter the filename to be opened and once opened with any stream of choice, all the content in the file is printed to the screen. You are additionally expected to deal most common exceptions(See samples below) [HINT: DO NOT PROVIDE A PATH BUT RATHER ONLY OPEN THE FILE WITH RELATIVE PATH/FILENAME] Sample run 1: Enter filename: input.txt sample output 1: Hello files, I got the content NB: input.txt contains "Hello files, I got the content" as the data [See sample file] Sample run 2: Enter filename: myText.txt sample output 2: Invalid file : myText.txt could not be found in the current directory NB: myText.txt is not a valid file  Requested files InClassDemo.java input.txt  1   Hello files, I got the contentarrow_forwardCreate a simple java program that reads all the content in a .txt file, the user will enter the filename to be opened and once opened with any stream of choice, all the content in the file is printed to the screen. You are additionally expected to deal most common exceptions(See samples below) [HINT: DO NOT PROVIDE A PATH BUT RATHER ONLY OPEN THE FILE WITH RELATIVE PATH/FILENAME] Sample run 1: Enter filename: input.txt sample output 1: Hello files, I got the content NB: input.txt contains "Hello files, I got the content" as the data [See sample file]arrow_forwardWrite a program that removes all the occurrences of a specifiedstring from a text file. For example, invokingjava Exercise12_11 John filenameremoves the string John from the specified file. Your program should get thearguments from the command line.arrow_forward
- Write a program that reads student data from a file, compute their GPA and writes the results to a different file. 1. The user should have the option to either enter their text file that contains the student grades or use the provided text file that contains theinformation. The data in "indata.txt" should look similar to this, Lara_Croft75 70 91 69 89Chris_Redfield68 88 79 85 94Johnny_Cochran69 98 95 77 80Wanda_Maximoff84 86 98 95 92Luke_Skywalker74 96 80 98 97William_Kurt89 52 99 81 58Samuel_Jackson50 96 50 64 95END_OF_FILE  This is supposed to be in python. This is what I have so far. I have no experience I apologise. I am trying to finish the GPA calculating program currently but am having trouble finishing it. grade = input("enter grades")points = 0 if grade is 90-99:total_points = 4.0if grade is 80-89:total_points = 3.0if grade is 70-79:total_points = 2.0if grade is 60-69:total_points = 1.0if grade is 50-59:total_points = 0.0gpa = total_points/len(grade)print(gpa,"is gpa")arrow_forwardWhat would be the printout of the following code if the same file.txt was used as above? int main() { fstream file("file.txt", ios::in); string line; while (!file.eof()) {   getline(file, line);   cout << line << endl; } file.close();    return 0;} Group of answer choices I have a dream. I Ihaveadream. I have a dream.I have a dream.arrow_forwardWrite a program that reads data from a file specified by the user at runtime (i.e. your program should accept the filename as user input) and stores the output in the file Ch3_Ex5Output.dat. To test your program, use the Ch3_Ex5Data.txt file.arrow_forward
- What would be the printout of the following code if the same file.txt was used as above? int main() { fstream file("file.txt", ios::in); char ch; file.get(ch); while (!file.eof()) {   cout << ch << " ";   file.get(ch); } file.close();    return 0;} Group of answer choices I have a dream. I h a v e a d r e a m . Ihaveadream. I have a dream.I have a dream.arrow_forwardWrite a program called ReverseText.exe that takes two file names as command-line arguments. TheReverseText program should reads the characters from the first file and write them into the second file inreverse order. Test your program out using the small text file iso_8859-1.txt provided with thisassignment. Once you are confident that your program is working correctly, run it on the much larger fileWar_of_the_Worlds.txt uploaded along with this assignment. For example, when you use this program on the command line it should be like this:ReverseText.exe War_of_the_Worlds.txt War_of_the_Worlds_reversed.txt Remember, if you are using fgets(), it will only return one line of the book at a time. You willhave to go through the book multiple times and make frequent use of the rewind() function.HintYou can use the strlen() function (that is part of the string.h C Standard Library) to check thelength of the string you read in using fgets().  ALSO, if you could please help me know and…arrow_forwardWrite a program that prompts the user for an input file name, reads all words from the input file, and writes the words to the output file sentences.txt. Start a new line whenever a word ends in a period, question mark, or exclamation mark. C++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
C - File I/O; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=cEfuwpbGi1k;License: Standard YouTube License, CC-BY
file handling functions in c | fprintf, fscanf, fread, fwrite |; Author: Education 4u;https://www.youtube.com/watch?v=aqeXS1bJihA;License: Standard Youtube License