Insert the missing çode in the following code fragment. This fragment is intended to read an input file. public static void main(String[] args) String inputFileName = "dataIn.txt"; File inputFile = new File(inputFileName); Scanner in = new Scanner(inputFile); Select one: O a. throws FileNotFoundException O b. inherits FileNotFoundExcep on O C. catches FileNotFoundException Cd. extends FileNotFoundException

Insert the missing çode in the following code fragment. This fragment is intended to read an input file. public static void main(String[] args) String inputFileName = "dataIn.txt"; File inputFile = new File(inputFileName); Scanner in = new Scanner(inputFile); Select one: O a. throws FileNotFoundException O b. inherits FileNotFoundExcep on O C. catches FileNotFoundException Cd. extends FileNotFoundException

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

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The function print_last_line in python takes one parameter, fname, the name of a text file. The function should open the file for reading, read the lines of the file until it reaches the end, print out the last line in the file, report the number of lines contained in the file, and close the file. Hint: Use a for loop to iterate over the lines and accumulate the count. For example: Test Result print_last_line("wordlist1.txt") maudlin The file has 5 lines.
JAVA PROGRAM Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage double_input1.txt double_input2.txt Test Case 1 Please enter the file name: \ndouble_input1.txtENTERTotal: -5,748.583\nAverage: -57.486\n Test Case 2 Please enter the file name: \ndouble_input2.txtENTERTotal: 112,546.485\nAverage: 56.273\n Test Case 3 Please enter the file name: \ndouble_input3.txtENTERFile 'double_input3.txt' does not exist.\nPlease enter the file name again: \ndouble_input1.txtENTERTotal: -5,748.583\nAverage: -57.486\n
IN JAVA - OOP Input File----------employee.csv - employee number, last name, first name, middle name, rate trans.csv - employee number, in, out Output File-----------comptrans.csv - employee number, total hours, overtime, pay 1. Open the two input files for reading. Use the statement below to convert each line read to an array: String[] objEmployee = strLine.split(",") 2. Compute for the following: total hours = out - in overtime = total hours - 8 pay = total hours * (rate + 15%) 3. Write to the output file only those employees with transaction and display the following on screen: Employee number Full name in out total overtime pay --------------- -------------------------- --- --- ----- -------- --- xxxxxx last, first middle initial
This Python Lab 9 Lab: Write a file copying program. The program asks for the name of the file to copy from (source file) and the name of the file to copy to (destination file). The program opens the source file for reading and the destination file for writing. As the program reads each line from the source file and it writes the line to the destination file. When every line from the source file has been written to the destination file, it close both files and print “Copy is successful.” In the sample run, “add.py” is the source file and “add-copy.py” is the destination file. Note that both “add-copy.py” is identical to “add.py” because “add-copy.py” is a copy of “add.py”. Sample run: Enter file to copy from: add.py Enter file to copy to : add-copy.py Copy is successful. Source file: add.py print("This program adds two numbers") a = int(input("Enter first number: ")) b = int(input("Enter second number: ")) print(f"{a} + {b} = {a+b}") Destination file:…
Create methods "read" and "write" methods to handle the input and output to files. in Java
Make the following modifications for the solution above: name the output/input file "myRandomNumbers.txt" use a loop to output 17 random numbers to the file after creating the file, close it open the file for input and read the contents and then total the numbers in the file determine the average of the numbers in the file determine the highest and lowest numbers in the file DO NOT USE PYTHON BUILTIN FUNCTIONS TO CALCULATE THE AVERAGE OR THE HIGHEST AND LOWEST NUMBERS an expected number of modules/functions would be in the 5-8 range Display your results: the numbers generated on a single horizontal line the calculated total and average the highest and lowest number in the file Be sure to use clear prompts/labeling for input and output.
Computer Science C++ Create a text file "input.txt" with a certain amount of integers (you decide how many). Write a program that reads these numbers from the file, adds them, and when you have reached the end of the file, calculates the average of these numbers. Print a message and the average to the console. Code this program twice, demonstrating the two methods to detect the end of the file, part A: reading a value from Instream and storing it (boolean expression) in the while loop part B: using the eof() member function
C++ . Write a program that finds the number of times a specific word appears in a text file. The program should accept the following inputs from the user: The word that you are looking for. The word length should be 3 or more otherwise the program should print Too short. The word should not have a space character. The name of the file that contains the text The type of the search 0 for case senstive search 1 for case insensitive search For any other input the program should output Invalid Note that the word should be preceded and succeeded by spaces. Note: Assume for all sample test cases that thecontent of F1.txt is: C++ is a general-purpose programming language created by Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significantly over time, and modern C++ now has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation. It is almost always implemented as a…
JAVA PROGRAM Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage double_input1.txt double_input2.txt PLEASE MODIFY THIS CODE, SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL THE TEST CASES, BECAUSE WHEN I UPLOAD IT TO HYPERGRADE IT DOES NOT PASS THE TEST CASES. IT HAS TO PASS ALL THE TEST CASES. I PROVIDED THE CORRECT OUTPUT AS A SCREENSHOT AS A REFERRENCE. import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;import java.util.InputMismatchException;import java.util.Scanner;public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String fileName; do {…
can you do it python
-all-occurrences-of-a-substring-in-a-string/.
Question 1 Write a Java program that prompts the user to enter a file name. Then the program counts and displays the number of letters and words in the file. You may use the following code fragment to extract and count the letters and words. int charchterCounter - 0; int wordsCounter - 0; String line; Scanner fileContent while (fileContent.hasNext ()) { line = fileContent.nextLine (); if(line.trim ().length () > 0) wordsCounter = wordsCounter + line. split (" ").length; for (int i - 0; i < line.length (): i++) if (Character.isLetter (line.charAt (i))) charchterCounter++