Answered: every line and it splits the line by…

Engineering

Computer Science

every line and it splits the line by comm

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

Please answer in python Write a method called add_racer which takes in a Boat object and adds it to the end of the racers list. The function does not return anything. Write a method called print_racers which loops through racers and prints the Boat objects. This function takes in no parameters (other than self) and returns nothing. Write a method called count that returns the number of racers. Write a method called race. The race function calls the move function for all of the racers in the BoatRace. Once all the racers have moved, call the print_racers method to display information about the progress of each boat. Then, check if any of the racer’s current_progress is greater than or equal to the race’s distance. If so, then return a list of all of the racers whose current_progress is greater than or equal to distance. If no racer has finished the race then repeat the calls to move and check until at least one racer has finished the race. Examples: Copy the following if…
Can someone please help me with this project for my Java Programming class? If you could correct my mistakes for me that would be great.
I need help with making a Java program, the general class that will be called “Businesses”. This class must have the following methods: selectSalesTax() – This method will read in a file “stateTaxInfo.txt” that has the name of a state and the tax percentage (decimal form) for that state and save them to the given arrays. It will then print a menu for the user to choose the state that the business is in and set the variables to hold the values. getCustomerName() – This method will prompt the user for the name of the person using the program calcSalesTax() – This method will be sent a subtotal and calculate the sales tax outputReceipt() – This method will output a generic receipt as follows: Subtotal $37.50 Sales Tax $2.44 Total $39.94 outputMenu() - This…
In java, without Arrays and using only String methods ( don't use String builder) // Question 17: In MS-DOS, a file name consists of up // to 8 characters (excluding '.', ':', backslask, '?', // and '*'), followed by an optional dot ('.' character) // and extension. The extension may contain zero to three // characters. For example, 1STFILE.TXT is a valid filename. // Filenames are case-blind. // // Write and test a method that takes // in a String, validates it as a valid MS-DOS file // name, appends the extensions ".TXT" if no extension // is given (that is, no '.' appears in FILENAME), converts // the name to uppercase, and returns the resulting string // to the calling method // If fileName ends with a dot, remove that dot and do not // append the default extension. If the name is invalid, // validFileName should return null. public String validFileName(String n) { }
Write a program that queries information from three files(given to you). The first file contains the names and telephone numbers of a group of people. The second file contains the names and Social Security numbers of a group of people. The third file contains the names and annual income of a group of people. The groups of people should overlap. Your program should ask the user for a telephone number and then print the name, Social Security number, and annual income, if it can determine that information. Sample run1: Enter the phone number (7 digits, with a dash): 555-1234 555-1234 is associated with Bob Bob's SSN is 000300021 Bob's salary is 55000 Sample run2: Enter the phone number (7 digits, with a dash): 675-4566 Couldn't find a name associated with that number. Sample run3: Enter the phone number (7 digits, with a dash): 000-2345 000-2345 is associated with John John's SSN is 000000004 John's salary is 65000 python language
This is a python file Fix this code and the output is the attachment #filename: modValidateEmail.py def isValidMSUMEmail(email): if email.count('@') != 1: return False tmp= email.split('@') if len(tmp) == 0: return False userName = tmp[0] if not userName[0].isalpha(): return False for c in userName: if not c.isalpha() and c != '.': return False inst= tmp[1] if inst != 'mnstate.edu': return False else: return True #filename: UnitTestValidEmail.py from unittest import * from modValidateEmail import * class TestValidEmail(TestCase): #create a subclass of unittest.TestCase def testUserName(self): self.assertEqual(isValidMSUMEmail('.joe@mnstate.edu'),False) self.assertEqual(isValidMSUMEmail('joe4@mnstate.edu'),False) self.assertEqual(isValidMSUMEmail('joe$smith@mnstate.edu'),False) self.assertEqual(isValidMSUMEmail('joe.smith@mnstate.edu'),True) def…
JAVA Write a program that plays a number-guessing game to guess a secret number randomly generated within the range 1 and 10. The user will get as many numbers of tries as he/she needs to guess the number. Tell the users if their guess is right or wrong and if their guess is wrong let them try to guess the number again. You have solved a similar problem in a previous lab using a while loop. You must generate the secret number using the Java Random class. When the user guesses a number he/she will have to take an input of his guessed number from the keyboard. The user will have to take as many inputs as needed to guess the correct secret-number. That means the code will keep looping as long as the guess is different from the secret number. You also need to count the number of tries and report the count at the end. Use a do-while loop to prompt the user to guess again if the guess is wrong. Make sure that it doesn't mess up the output if you guess the secret number on the first try.…
In Java: Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs yes if every character is a digit 0-9. Ex: If the input is: 1995 the output is: yes Ex: If the input is: 42,000 or 1995! the output is: no Hint: Use a loop and the Character.isDigit() function.
In a text file, I have two numbers each line. The numbers are the employee ID and the number of hours the employee work. My goal of this program is to read the both employee ID and the number of hours the employee work and print it out in the main program. If the list of employee id is not in order, sort it in order and still print it out in the main program. Additionally, after printing them out, print out the total number of employees and the total number of hours all the employee work. Write this in java For example File.txt EmployeeID Number of Hours Work 3 12 2 20 1 40 5 20 7 9 In the main program print: EmployeeID Number of Hours Work 1 40 2 20 3 12 5 20 7 9