Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 12.10, Problem 12.10.1CP
What is wrong about creating a File object using the following statement?
new File(“c:\book\test.dat”);
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
FILE* inFile = fopen("filenam.txt", "r");
Given the above code segment, which of the following would output "FILE NOT FOUND" if the file could not be opened?
Group of answer choices
if(inFile == NULL)
{
printf("FILE NOT FOUND");
}
if(inFile)
{
printf("FILE NOT FOUND");
}
if(!inFile->is_open())
{
printf("FILE NOT FOUND");
}
None of these
=============
What does sscanf do?
Group of answer choices
Reads from a file
Reads from a keyboard
Reads from a string
Writes to a screen
===========
What comes first in the software development life cycle?
Group of answer choices
Algorithm design
Identifying the problem
Coding
Testing
What does this code write into the file data.bin
In Python do the following:
Writing to Files: write code to write to a file called ‘writefile.txt’To write in a file we first have to open the file. That is what the first line should do so that Pythoncreates a file object to represent the file, and give the object the name f (variable). We use this variableto refer to the file. To write to the file, use the print statement with the optional file argument thatspecifies the file to write to. When done writing, close the file to make sure all the changes are saved.Remember, if writefile.txt already exists, its contents will be overwritten.
Chapter 12 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 12.2 - Prob. 12.2.1CPCh. 12.2 - Prob. 12.2.2CPCh. 12.2 - Prob. 12.2.3CPCh. 12.2 - Prob. 12.2.4CPCh. 12.2 - Prob. 12.2.5CPCh. 12.2 - Show the output of the following code:Ch. 12.3 - Prob. 12.3.1CPCh. 12.3 - Prob. 12.3.2CPCh. 12.4 - Prob. 12.4.1CPCh. 12.4 - Prob. 12.4.2CP
Ch. 12.4 - Prob. 12.4.3CPCh. 12.4 - Prob. 12.4.4CPCh. 12.4 - Prob. 12.4.5CPCh. 12.4 - Prob. 12.4.6CPCh. 12.4 - What is displayed when running the following...Ch. 12.4 - Prob. 12.4.8CPCh. 12.4 - What does the method getMessage() do?Ch. 12.4 - What does the method printStackTrace() do?Ch. 12.4 - Prob. 12.4.11CPCh. 12.4 - Prob. 12.4.12CPCh. 12.5 - Prob. 12.5.1CPCh. 12.6 - Prob. 12.6.1CPCh. 12.7 - Prob. 12.7.1CPCh. 12.8 - Prob. 12.8.1CPCh. 12.9 - Prob. 12.9.1CPCh. 12.9 - Prob. 12.9.2CPCh. 12.10 - What is wrong about creating a File object using...Ch. 12.10 - How do you check whether a file already exists?...Ch. 12.10 - Can you use the File class for I/O? Does creating...Ch. 12.11 - Prob. 12.11.1CPCh. 12.11 - Prob. 12.11.2CPCh. 12.11 - Prob. 12.11.3CPCh. 12.11 - Prob. 12.11.4CPCh. 12.11 - What will happen if you attempt to create a...Ch. 12.11 - Prob. 12.11.6CPCh. 12.11 - Suppose you enter 45 57, 8 789, then press the...Ch. 12.11 - Prob. 12.11.8CPCh. 12.12 - How do you create a Scanner object for reading...Ch. 12.13 - Prob. 12.13.1CPCh. 12.13 - Simplify the code in lines 20-28 as follows: 1....Ch. 12 - Prob. 12.1PECh. 12 - (InputMismatchException) Write a program that...Ch. 12 - (ArrayIndexOutOfBoundsException) Write a program...Ch. 12 - (IllegalArgumentException) Modify the Loan class...Ch. 12 - (IllegalTriangleException) Programming Exercise...Ch. 12 - (NumberFormatException) Listing 6.8 implements the...Ch. 12 - Prob. 12.7PECh. 12 - Prob. 12.8PECh. 12 - Prob. 12.9PECh. 12 - Prob. 12.10PECh. 12 - Prob. 12.11PECh. 12 - (Reformat Java source code) Write a program that...Ch. 12 - (Count characters, words, and lines in a file)...Ch. 12 - (Process scores in a text file) Suppose a text...Ch. 12 - (Write/read data) Write a program to create a file...Ch. 12 - Prob. 12.16PECh. 12 - (Game: hangman) Rewrite Programming Exercise 7.35....Ch. 12 - Prob. 12.18PECh. 12 - (Count words) Write a program that counts the...Ch. 12 - Prob. 12.20PECh. 12 - (Data sorted?) Write a program that reads the...Ch. 12 - Prob. 12.22PECh. 12 - (Process scores in a text file on the Web) Suppose...Ch. 12 - (Create large dataset) Create a data file with...Ch. 12 - (Create a directory) Write a program that prompts...Ch. 12 - Prob. 12.26PECh. 12 - (Replace words) Suppose you have a lot of files in...Ch. 12 - (Rename files) Suppose you have a lot of files in...Ch. 12 - (Rename files) Suppose you have several files in a...Ch. 12 - (Occurrences of each letter) Write a program that...Ch. 12 - (Baby name popularity ranking) The popularity...Ch. 12 - (Ranking summary) Write a program that uses the...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
From your earlier experimentation with the ticket machine objects within BlueJ, you can probably remember the n...
Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
Why cant we assign a base class object to a derived class variable?
Problem Solving with C++ (9th Edition)
Rock, Paper, Scissors Game Write a program that lets the user play the game of Rock, Paper, Scissors against th...
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Run the hello, world program on your system. Experiment with leaving out parts of the program, to see what erro...
C Programming Language
Give an example of a data constraint.
Database Concepts (7th Edition)
Complete the following table by filling in private, protected, public, or inaccessible in the right-hand column...
Starting Out with C++: Early Objects (9th 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
- What is wrong about creating a File object using the following statement? new File("c:\book\test.dat");arrow_forwardWrite code that does the following: opens a file named MyName.txt, reads the first linefrom the file and displays it, and then closes the file.arrow_forwardWhat will the following code print assuming infile is a file object that has been just opened for reading in the preceding step? infile.readline() lines = infile.readlines() print(lines[0]) O Print the second line of the file. O Print the third line of the file. O Print the first line of the file. O Print all the lines of the file.arrow_forward
- In c++ write a code that tells a user to enter a filename and read that text file line by line.arrow_forwardTrue or false? The following statement fails if the file does not exist. ofstream file("out.txt"); Group of answer choices true falsearrow_forwardPython Question: myfile = open('sales.txt','r')Which statement is correct if the next line in a file holds the unit price of an item? A. price = float(myfile.readline()) B. price = float(sales.readline()) C. price = myfile.read() D. price = myfile.readline().rstrip() E. price = float(myfile.read())arrow_forward
- 2. File handling is an important part of any application. Assume that, you are asked to build an application to find the harmonic mean in a file. Assume that you have to read the file of "Filel.txt" and print the harmonic mean of each row to an output file "File2.txt". All of the data in the "File1.txt" is comma separated. In file1.txt you are given the name of the data set in first place, then you are given the data list. All of them are comma separated. Your task is to compute the harmonic mean from the given file | for each dataset. The file may contain more than 1000 rows. Write your code by following the requirements. File2.txt harmonic mean of Datal is 3.50 harmonic mean of Data2 is 3.43 harmonic mean of Data3 is 3.50 File1.txt Data1, 3, 4, 4, 3, 3.7, 4, 3.3, 1 Data2, 3, 4, 3.7, 3, 3.7, 4, 3, 1 Data3, 3, 4, 4, 3, 3.7, 4, 3, 2 Data4, 3, 4, 4, 3, 3.7, 4, 3.3, 2 Design a JAVA application that can perform the task with the given scenario. harmonic mean of Data4 is 3.49arrow_forwardWhat data type do you use when you want to create a file stream object that canread data from a file?arrow_forward3. Write code that does the following: opens an output file with the filename number_1ist.txt, uses a loop to write the numbers 1 through 100 to the file, then closes the file. 4. Write code that does the following: opens the number_list.txt file that was created by the code you wrote in question 3, reads all of the numbers from the file and displays them, then closes the file. 5. Modify the code that you wrote in problem 4 so it adds all of the numbers read from the file and 414arrow_forward
- 3. Write a pseudocode that does the following: create a file, use open(), write() method returns number of characters written, and use close() to close file.arrow_forwardThe File class contains file input and output operations. In other words, you can use the File class to read and write content from and to files. True Falsearrow_forwardJAVA PPROGRAM ASAP Please create this program ASAP BECAUSE IT IS MY HOMEWORK ASSIGNMENT so it passes all the test cases. The program must pass the test case when uploaded to Hypergrade. Chapter 9. PC #10. Word Counter (page 610) Write a program that asks the user for the name of a file. The program should display the number of words that the file contains. Input Validation: Make sure the file exists, before proceeding. Let the user type quit in order to exit the program. If the file is empty, the word count should be 0. input1.txt this is a test input2.txt thisisatest input3.txtEmpty input4txt this this is is a a test test Test Case 1 Please enter the file name or type QUIT to exit:\ninput1.txtENTERTotal number of words: 4\n Test Case 2 Please enter the file name or type QUIT to exit:\ninput2.txtENTERTotal number of words: 4\n Test Case 3 Please enter the file name or type QUIT to exit:\ninput3.txtENTERTotal number of words: 0\n…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
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