
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
thumb_up100%
Assume that there is a data file named as “data.txt”. This data file contains integer values in multiple lines, as shown below. You are asked to write statements in the main() method to open the file, read and print out the total of all the values (should be 55). Place your code into try-catch block so that the FileNotFoundException will be caught and an error message will be printed if no such file exists.
data.txt
1 2 3
4 5 6
7 8 9 10
import java.util.*;
import java.io.*;
public class ReadAndPrint {
pubilc static void main() {
// your code goes here
}
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps with 1 images

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
- I need to modify this code to be able to read from a file and write into a file. The program is working as it should but I need an example of how to change my input and accept a file instead.arrow_forwardUsing a Counter-Controlled whileLoop Summary In this lab, you use a counter-controlled while loop in a Java program provided for you. When completed, the program should print the numbers 0 through 10, along with their values multiplied by 2 and by 10. The data file contains the necessary variable declarations and some output statements. Instructions Ensure the file named Multiply.java is open. Write a counter-controlled while loop that uses the loop control variable to take on the values 0 through 10. Remember to initialize the loop control variable before the program enters the loop. In the body of the loop, multiply the value of the loop control variable by 2 and by 10. Remember to change the value of the loop control variable in the body of the loop. Execute the program by clicking Run. Record the output of this program.arrow_forwardFilelO 01: Write a Message Write a FileI001 class with a method named writeMessage() to takes message as a String and a filename (as a String) (in that order). Have the method, write the message to the filename. Your code will either need to 1) catch all checked exceptions or 2) use the throws keyword. public class FileI001{ public void writeMessage( String message, String filename ){arrow_forward
- 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.arrow_forwardIn python, which of the following opens read_it.txt for appending or reading in data test_file variable. a. text_file = open("read_it.txt", "ar") b. text_file = open("read_it.txt", "wr") c. text_file = open("read_it.txt", "a+") d. text_file = open("read_it.txt", "ra") Which one is correct? help!arrow_forwardJava: Write a static method named textCount that takes a Scanner representing a file as a parameter and that reports various statistics about the file. In particular, your method should report the number of lines in the file, the total number of characters (not counting any new-line \n characters) in the file, and the length and text of the longest line. You may assume that the input file has at least one line of input. For example, if the file contains the following text: Twas brillig and the slithy toves did gyre and gimble in the wabe. All mimsey were the borogroves, and the mome raths outgrabe. "Beware the Jabberwock, my son, the jaws that bite, the claws that catch, Beware the JubJub bird and shun the frumious bandersnatch." The program would find that there are 9 lines (blank lines count), a total of 254 characters in the file (33 on the first line, 32 on the next line, 31 on the next line, 28 on the next, 0 on the next, etc) and that the longest line is the one that begins…arrow_forward
- This is for Advanced Java Programming Write a test program that reads words from a text file and displays all non-duplicate words in ascending order and then in descending order. - The file is to be referenced in the program, not needing to be used as a command line reference. - The word file is to be titled collection_of_words.txt and included in your submission. Write test code that ensures the code functions correctly.arrow_forwardyou have been asked by a computer gaming company to create a role-playing game, commonly known as an rpg. the theme of this game will be of the user trying to get a treasure that is being guarded the user will choose a character from a list you create create a character class, in a file named character.h, which will: have the following variables: name race (chosen from a list that you create, like knight, wizard, elf, etc.) weapon (chosen from a list that you create) spells (true meaning has the power to cast spells on others) anything else you want to add the treasure will be hidden in one of the rooms in a castle create a castle class, in a file named castle.h, that will: have these variables: at least four rooms named room1, room2, etc. moat (which is a lagoon surrounding a castle) which boolean (not all castles have them) anything else you want to add create a default constructor for each class that initializes each argument to a blank or false value create a second…arrow_forwardI am trying to figure out why the sum at the end of my Java code is not working correctly. It keeps showing as zero and I do not know what the issue is. Here is the program requirements Write a program in a single file that: Main: Creates 10 random doubles, all between 1 and 11, Calls a method that writes 10 random doubles to a text file, one number per line. Calls a method that reads the text file and displays all the doubles and their sum accurate to two decimal places. SAMPLE OUTPUT 10.62691196041722.7377903389094555.4279257388651281.37420580654725091.18587002624988364.1803912764852284.9109699989306755.7108582343439587.7908570073730523.1806714736219543 The total is 47.13 Here is my code: import java.util.*;import java.io.*; public class AssignmentTwo { public static void main(String[] args) {//main method double randNum [] = new double [10]; for(int i = 0; i< randNum.length; i++) { randNum[i] = (double)(Math.random()* (10) + 1);…arrow_forward
- The Springfork Amateur Golf Club has a tournament every weekend. The club president has asked you to write a program that will read each player's name and score as keyboard input, and then save these as records in a file named golf.txt . First, the program should ask the user for the number of players. Then, it should ask the user for each name and score individually. The file golf.txt should be structured so that there is a line with the player's name, followed by their score on the next line. Here is an example: Emily 30 Mike 20 Jonathan 23 Look carefully at the following sample run of the program. In particular, notice the wording of the messages and the placement of spaces and colons. Your program's output must match this. Sample Run (User input shown in bold) Enter number of players :4↵ Enter name of player number 1 : Jimmy↵ Enter score of player number 1 : 30↵ Enter name of player number 2 : Carly↵ Enter score…arrow_forwardIn Java I need to design an ESP Game: Design a program to test your extrasensory perception. The program will randomly pick a card (you could consider only the card suit, for example [Hearts, Diamonds, Clubs, Spades]. ) Prompt the user to enter a suit, then display whether the user guessed correctly. ESP Game Outcomes: Modify your ESP game to write the outcome of a game to a file. Allow the user to play the ESP game multiple times, writing each outcome to a file. Then, determine the number of times the user guessed correctly reading from the file. Please include flowcharts and/or class diagramsarrow_forwardThis is for Java. Please help. Thanksarrow_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 EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable 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