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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Java : Create a .txt file with 3 rows of various movies data of your choice in the following table format: Movie ID number of viewers rating release year Movie name 0000012211 174 8.4 2017 "Star Wars: The Last Jedi" 0000122110 369 7.9 2017 "Thor: Ragnarok" Create a class Movie which instantiates variables corresponds to the table columns. Implement getters, setters, constructors and toString. Implement 2 readData() methods : the first one will return an array of Movies and the second one will return a List of movies . Test your methods.
What does the following python code do? f = open("sample.txt", "w") Choose all that apply. Select 2 correct answer(s) a. writes "w" to the file called sample.txt b. if the file sample.txt exists, deletes everything in it c. closes a file called sample.txt d. If the file called sample.txt exists, it writes at the bottom of the file e. opens a file called sample.txt for appending f. if the file sample.txt does not exist, it creates the file and opens it for writing g. reads the file called sample.txt starting from the top h. opens a file called sample.txt for reading
USING C++ PLEASE CREATE THREE FILES! IntCollection.h (or IntCollection.hpp): class definition IntCollection.cpp: class implementation main.cpp, including sample output and your answer to question 6 at the bottom. : main program to run the code The following code creates an IntCollection object named ‘c’. It adds seven integers to ‘c’, then uses a for loop to display the seven integers: int main() { IntCollection c; c.add(45); c.add(-210); c.add(77); c.add(2); c.add(-21); c.add(42); c.add(7); for (int i = 0; i < c.getSize(); i++) { cout << c.get(i) << endl; } } For this assignment you will add a copy constructor, a destructor, and three overloaded operators to the IntCollection class. In the design diagram below, the black member functions represent code that has already been implemented. You will be implementing the green items. Each item that you will be adding to the class is described below the diagram. private: int size // the number of ints currently stored in…
wordCountDistinct.py: Write a program that reads words from a file (filename given as a command-line argument) and prints the number of distinct words. Words that differ only in case should be considered to be equivalent.For example, using the input: If there's a problem yo I'll solve itCheck out the hook while my DJ revolves itIce ice baby The program should print 18.
Time remaining: 00:09:10 Computer Science this file is named HW3.Java can someone run it through a GNU compiler and please show me the outputs import java.io.FileWriter;import java.io.IOException;public class HW3 {public static void main(String[] args) throws IOException {// 0th argument contains the name of algorithmString algo = args[0];// 1st argument contains the name of file// Make a new fileFileWriter fw = new FileWriter(args[1]);if (algo.equals("p1")) {// 2nd argument comes in the form of string.// convert it to intger and run a loopfor (int i = 1; i <= Integer.parseInt(args[2]); i++) {double[] x = new double[(int) Math.pow(10, i)];// use start and end for recording timelong start = System.currentTimeMillis();prefixAverage1(x);long end = System.currentTimeMillis();double totalTime = Math.log10(end - start);fw.write(String.valueOf(totalTime));String newLine = System.getProperty("line.separator");fw.write(newLine);}} else if (algo.equals("p2")) {for (int i = 1; i <=…
1. Write a Java program that reads the file "input.txt" and calculates and prints the average of all integer numbers in this file. SAMPLE OUTPUT: throws FileNotFoundException try/catch OUTPUT SAMPLE #1 for input.txt: 1 2 3 4 5 6 x x x 8 12 x x 34 x x 10 20 Please input the name of the file to be opened: input.tx --- File Not Found! OUTPUT SAMPLE #1 for input.txt: 1 2 OUTPUT SAMPLE #2 for input.txt: 1 2 3 4 5 6 x x x 8 12 x x 34 x x 10 20 Please input the name of the file to be opened: input.txt Number # 1 is: 1 Number # 2 is: 2 3 4 5 6 x x x 8 12 x x 34 x x 10 20 Number # 1 is: 1 Number # 2 is: 2 Number # 3 is: 3 Number # 4 is: 4 Number # 5 is: 5 Number # 6 is: 6 Number # 3 is: 3 Number # 4 is: 4 Number # 5 is: 5 Number # 7 is: 8 Number # 8 is: 12 Number # 9 is: 34 Number # 6 is: 6 Number # 10 is: 10 Number # 7 is: 8 Number # 11 is: 20 The average of 11 numbers/file = 9.55 Number # 8 is: 12 Number # 9 is: 34 Number # 10 is: 10 OUTPUT SAMPLE #2 for Number # 11 is: 20 The average of 11…
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 PLEASE FIX AND MODIFY THIS JAVA SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL TEST CASSES PLEASES. RIGHT NOW IT SAYS 0 OUT 3 PASSED. THE PICTURES THAT I PROVIDED PROOF THAT WHEN I UPLOAD IT TO HYPERGRADES IT FAILS TEST CASSES. THANK YOU. import java.io.*;import java.util.Scanner;public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("Please enter the file name: "); while (true) { String fileName = scanner.nextLine(); File file = new File(fileName); if (file.exists() &&…
Answer the given question with a proper explanation and step-by-step solution. 1- Write code that does the following: opens an output file with the filename number_list.txt, uses a loop to write the numbers 1 through 100 to the file, then closes the file.
<<Write in Java>> - Challenge 7 File encryption is the science of writing the contents of a file in a secret code. 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 contents out to a second file. The second file will be a version of the first file, but written in a secret code. Although there are complex encryption techniques, you should come up with a simple one of your own. For example, you could read the first file one character at a time, and add 10 to the character code of each character before it is written to the second file. - Challenge 8 Write a program that decrypts the file produced by the program in Programming Challenge 7. The decryption program should read the contents of the coded file, restore the data to its original state, and write it to another file
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 PLEASE FIX, CHANGE AND MODIFY THIS JAVA PROGRAM SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL TEST CASSES PLEASES. RIGHT NOW IT SAYS 0 OUT 3 PASSED. THE PICTURES THAT I PROVIDED PROOF THAT WHEN I UPLOAD IT TO HYPERGRADES IT FAILS TEST CASSES. THANK YOU. import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;import java.util.InputMismatchException;import java.util.Locale;import java.util.Scanner;public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String fileName; do {…
Use C++ In a student file, there are names and scores. Find the max score and print out the names of the students with the max score. • You must get a filename as standard input. See two sample outputs on the next page. • The number of students in the file is at most 50. • You need to make two arrays (see the next page). 1. Create a string array with size 50. The array will store the names of the students. 2. Create an integer array with a size of 50. The array will store the scores of the students.
reads in a file of student academic credit data. Each line of the input filewill contain the student name (a single String with no spaces), the number of semester hours earned (an integer),the total quality points earned (a double).Here is the students.dat data file:students.dat Smith 27 83.7Jones 21 28.35Walker 96 182.4Doe 60 150Wood 100 400Street 33 57.4Taylor 83 190Davis 110 198Smart 75 292.5Bird 84 168Summers 52 83.2 My question is how can I create the <<students.dat>> I already have the code but I just need help to create the students.dat