Building Java Programs: A Back to Basics Approach (4th Edition)
Building Java Programs: A Back to Basics Approach (4th Edition)
4th Edition
ISBN: 9780134322766
Author: Stuart Reges, Marty Stepp
Publisher: PEARSON
Question
Book Icon
Chapter 6.2, Problem 6SCP
Program Plan Intro

Reading the data from the files using “Scanner” class:

  • The user can read data from a file using the object of “Scanner” class.
  • The Scanner object is like a faucet, that the user can attach a pipe that has water flowing through it. The source of the water is different.
  • Normally, the object of “Scanner” constructor is created by passing “System.in” to the Scanner constructor.
  • To create Scanner object for file operation, instead of passing “System.in” to the constructor, user should pass File object.

    File f = new File( "hamlet . txt" );

    Scanner input = new Scanner(f) ;

  • In the above snippet of code, the file object f is created. This file object is passed to the “Scanner” constructor to get the data from the file using the object “input”.
  • When the Scanner object is created, it points to the starting or beginning of the file.
  • The Scanner class cut the line at the blank space and each portion of the line is called as a token.

Blurred answer
Students have asked these similar questions
The assignment here is to write an app using a database named CIT321 with a collection named students; we will provide a CSV file of the data. You need to use Vue.js to display 2 pages. You should know that this assignment is similar, all too similar in fact, to the cars4sale2 example in the lecture notes for Vue.js 2. You should study that program first. If you figure out cars4sale2, then program 6 will be extremely straightforward. It is not my intent do drop a ton of new material here in the last few days of class. The database contains 51 documents. The first rows of the CSV file look like this: sid last_name 1 Astaire first_name Humphrey CIT major hrs_attempted gpa_points 10 34 2 Bacall Katharine EET 40 128 3 Bergman Bette EET 42 97 4 Bogart Cary CIT 11 33 5 Brando James WEB 59 183 6 Cagney Marlon CIT 13 40 GPA is calculated as gpa_points divided by hrs_attempted. GPA points would have been arrived at by adding 4 points for each credit hour of A, 3 points for each credit hour of…
I need help to solve the following case, thank you
hi I would like to get help to resolve the following case

Chapter 6 Solutions

Building Java Programs: A Back to Basics Approach (4th Edition)

Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education