Java: An Introduction to Problem Solving and Programming (7th Edition)
7th Edition
ISBN: 9780133766264
Author: Walter Savitch
Publisher: PEARSON
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Textbook Question
Chapter 10.4, Problem 13STQ
Give three statements that will write the values of the three double variables x1, x2, and x3 to the file stuff.data. Use the stream toFile that you created for the previous question.
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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
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- Last lab, we modified the inventory program to write a file. This lab, we’ll modify it to read a file. First, take your program from the last lab. Add one more feature: at the end, just before you close the file, write the word “END” all by itself on a line. Run that program once to create a file of items with “END”. Now, copy that program to a new file cp lab7.cpp lab8.cpp so you can use it as a basis for this lab. Modify lab8 so instead of reading from cin and writing to a file, you read from your file and write to cout. The only tricky part is deciding when to stop reading. In lab7, you stopped reading when the user said they didn’t want to continue. For lab8, keep reading until you read “END” for the name of the produce. You can use “==” on strings, so if (product name == ”END”) will tell you that you can stop reading. PHOTO OF WHAT IT SHOULD LOOK LIKE INCLUDED My code for last lab: #include <iostream>#include <string>#include <fstream>using namespace std; int…arrow_forwardThe following is an old word puzzle: “Name a common word besides tremendous, stupendous, and horrendous that ends in ‘dous’”. IF you think about it for a while you may be able to solve it. But we are programmers and we don’t like to think. Also we can do something much better than just check to see if a word ends in dous. Create a program that will read the attached words.txt file. Ask the user for a string. Based on that string, output every word that ends in such a string. If there are no results say so. Try to ensure that the program does not have any errors based on the input from the user. in javaarrow_forwardFirst, take your program and add one more feature: at the end, just before you close the file, write the word “END” all by itself on a line. Run that program once to create a file of items with “END”. Instead of reading from cin and writing to a file, you read from your file and write to cout. The only tricky part is deciding when to stop reading. In your previous code, you stopped reading when the user said they didn’t want to continue. For the new code, keep reading until you read “END” for the name of the produce. You can use “==” on strings, so if (product name == ”END”) will tell you that you can stop reading. My code: #include<iostream>#include<string.h>#include<fstream>using namespace std; int main(){ string filename; cout<<"Enter the name of the file to store the information"<<endl; getline(cin,filename); ofstream fileptr(filename.c_str()); if(!fileptr.is_open()) { cout<<"Couldn't open a file"<<endl; }…arrow_forward
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