Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
Bartleby Related Questions Icon

Related questions

Question

In Java

Write a Fraction class that implements these methods:
• add ─ This method receives a Fraction parameter and adds the parameter fraction to the
calling object fraction.
• multiply ─ This method receives a Fraction parameter and multiplies the parameter
fraction by the calling object fraction.
• print ─ This method prints the fraction using fraction notation (1/4, 21/14, etc.)
• printAsDouble ─ This method prints the fraction as a double (0.25, 1.5, etc.)
• Separate accessor methods for each instance variable (numerator , denominator ) in the
Fraction class
Provide a driver class (FractionDemo) that demonstrates this Fraction class. The driver class should
contain this main method :
 public static void main(String[] args)
 {
 Scanner stdIn = new Scanner(System.in);
 Fraction c, d, x; // Fraction objects
 System.out.println("Enter numerator; then denominator.");
 c = new Fraction(stdIn.nextInt(), stdIn.nextInt());
 c.print();
 System.out.println("Enter numerator; then denominator.");
 d = new Fraction(stdIn.nextInt(), stdIn.nextInt());
 d.print();
 x = new Fraction(); // create a fraction for number 0
 System.out.println("Sum:");
 x.add(c).add(d);
 x.print();
 x.printAsDouble();
 x = new Fraction(1, 1); // create a fraction for number 1
 System.out.println("Product:");
 x.multiply(c).multiply(d);
 x.print();
 x.printAsDouble();
 System.out.println("Enter numerator; then denominator.");
 x = new Fraction(stdIn.nextInt(), stdIn.nextInt());
 x.printAsDouble();
 } // end main
Please study this driver carefully. Note that this driver does not call the accessor methods--that’s OK.
Accessor methods are often implemented regardless of whether there is an immediate need; they are
handy methods in general, and providing them means that future code can use them when needed.
Sample session:
Enter numerator; then denominator.
5
8
5/8
Enter numerator; then denominator.
4
10
4/10
Sum:
82/80
1.025
Product:
20/80
0.25
Enter numerator; then denominator.
6
0
infinity

Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Computer Science
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
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