Answered: Using the Java compiler, try to create…

Using the Java compiler, try to create a file in the same directory and take the name of file from user which have .txt as its extension.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

4. Fast in java coding please. Thank you File Encryption is the science of writing contents of a file in a secret code. Yourencryption program should work like a filter, reading the content of one file,modifying the data into a code, and then writing the coded contents out to a secondfile. The second file will be a version of the first file, but written in secretcode. Write a program to demonstrate the above working with binary files.
Please write a Java program , to write data into a file ( output.txt ). The output.txt file is below. 1 22 333 4444 55555 666666
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.
Take a time from user in seconds and convert it into the format Hour, minute, second. Write a code in C++ language and attach the output file with the code.
In Java Suppose you are given a text file that contains the names of people. Every name inthe file consists of a first name and a last name. Unfortunately, the programmer thatcreated the file of names had a strange sense of humor and did not guarantee thateach name was on a single line of the file. Write a program that reads this file ofnames and writes them to the console, one name per line.For example, if the input file (Names.txt) contains:Bob Jones FredCharles EdMarstonJeffWilliamsThe output should be:Bob JonesFred CharlesEd MarstonJeff Williams Sample Output:Enter the name of the input file:Names.txtBob JonesFred CharlesEd MarstonJeff WilliamsFile processing completed.
IN PYTHON: Decrypting with ascii I have a file called 'dict.txt'. This file contains over 50,000 english words. One word from this file is used as a key (we do not know which one of course). Some have capital letters. I have another file called 'decrypt.txt' which is a file containing a string of numbers i must decrypt using a key found in the 'dict.txt'. This 'decrypt.txt' file message has length of 300. My question is, since i do not know which word (from the file with the 50,000+ words) is the key I must use to decrypt the other file, how do I write a function that: loops through all possible keys from 'dict.txt' to find the one that decrypts my file 'decrypt.txt' best? Somehow i must count how many 'words' are actual words to determine which key is best and then print my final decrypted message.
Write a python program that prompts the user for their favorite basketball team. It should be able to read the list of teams provided below in a file called favorite_teams.txt and check if their team is in that file. Teams in the file:JazzBullsMavericksSpursIf the team is in the file let the user know that their team is in the list of favorites. If the team is not in the file, add the team to the end of the file. Also, let the user know that their team will be added to the file.Sample Run in File:What is your favorite NBA team? Jazz [Enter]Your team Jazz is in the listFile before and after run: JazzBullsMavericksSpurs Sample Run not in File:What is your favorite NBA team? Pelicans [Enter]Your team Pelicans is not in the list. It will be added.File before run: JazzBullsMavericksSpursFile after run:JazzBullsMavericksSpursPelicans
Challenge 3: Encryption.java and Decryption.java Write an Encryption class that encrypts the contents of a binary file. Your encryption program should work like a filter, reading the contents of one file, modifying the data into a code, and then writing the coded content out to a second file. The second file will be a version of the first file, but written in a secret code. Use a simple encryption technique, such as reading one character at a time, and add 10 to the character code of each character before it is written to the second file. Come up with your own encryption method. Also write a Decryption class that reads the file produced by the Encryption program. The decryption file will use the method that you used and restore the data to its original state, and write it to a new file.
IN JAVA How can I create a program that produce a chart from any data file arranged like the picture below. With the name of the data file and output file provided on the command line and must be able to check that there are enough command line arguments and stop with a suitable message if not. The program saves the chart to the output file and it displays the chart to the terminal. It should also accept two additional command line arguments : maximum width for the chart and the symbols use for the bar
Exercise 2:Write a Java program that allows the user to specify a file name on the command line and prints the number of characters, words, lines, average number of words per line, and average number of characters per word in that file. If the user does not specify any file name, then prompt the user for the name.
Write a complete java program that: asks the user for a file name tests whether the file exists and tells the user if it does exist asks the user whether it should be deleted. Either delete or do not delete the file based on the user input. If they don't delete, ask them if they would like to write to the file If they want to write, ask what they want to write to the file and write it. Make sure to provide plenty of console output dialog specifying what status/actions are taken at each step.
Create a main( ) java file to perform the required tasks. Validate a user’s input (a menu option) to ensure its validity. Test and document your program to make sure that all of the required tasks are met. The main( ) creates a menu for a bank manager and a bank customer. For a bank manager, he/she can add information of bank customers and display all customer records. For a bank customer, he/she can make a deposit to a bank account and withdraw money from the account. Hint: The main ( ) could have a static method that allows a bank manager to add customers’ information to a text file. The information consists of Customer ID, Name (full name), and Email Address. Note that a loop should be used to perform the manager's task. As a result from the process, a text file "BankCustInfo.txt" is created. Also, the main( ) could have another static method that allows the bank manager to display all customer records to the screen. Create a class, BankCustomer, that contains attributes such as…