Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Textbook Question
Chapter 10.4, Problem 25STQ
Does the class ObjectOutputStream have a constructor that accepts a file name as an argument?
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Write a class FileConverter with a constructor that accepts a String file name as its argument. It should store filename as its attribute (with a accessor getFilename().
The class should have the following methods:
• createUpperCaseFile(): Accepts a String parameter targetFilename. It will open up both the file specified in class attribute filename and the method parameter targetFilename. Then it will convert
all lines of the class attribute filename to upper case and write it to target file, line by line.
• createRowCharCountFile(): Accepts a String parameter targetFilename. It will open up both the file specified in class attribute filename and the method parameter targetFilename. Then it will count
the number of chars in each line of the class attribute filename and write it to target file line by line.
The class must come with a main() method, which will create an object instance and generate two target files based on the source file, one all upper case, and another row char count.
Implement (in Java) a console application for writing data to a sequential text file with a formatter class in Java :
a. Implement createFile() method – To open/create a new file named as ‘mec.txt’ with explanations of the methods involved.
b. Implement writeRecord() method – User enter the employee name, employee id, gross salary, tax rate, income tax and net salary from the keyboard and write/add these values to the file ‘mec.txt’ with explanations of the methods involved. The input fields must be validated as necessary.
c. Implement closeFile() method – Close the file with explanations of the methods involved.
JAVA Problem – CycleFileOutput
Revisit the Cycle class. Modify your application such that the properties will be written to a text file called “Cycle.txt” instead of to the screen.
Directions
Examine your application for the class called Cycle.
Add an appropriate throws statement in the main method.
Create a reference to a File class with the appropriate name of a text file (Cycle.txt).
Use appropriate code to ensure that the text file exist.
Output the values of the variables to the text file.
Close the file.
Note: Verify the contents were written to the text file using notepad (or any word processor).
public class Cycle {
// Declear integer instance variable
private int numberOfWheels;
private int weight;
// Constructer declear class
public Cycle(int numberOfWheels, int weight ) {
this.numberOfWheels = numberOfWheels;
this.weight = weight;
}
// String method for output
public String toString() {
String wheel = String.valueOf(this.numberOfWheels);
String load =…
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
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