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lukranit [14]
3 years ago
12

Book information (overriding member methods) Given main() and a base Book class, define a derived class called Encyclopedia. Wit

hin the derived Encyclopedia class, define a printlnfomethod that overrides the Book class printinfo() method by printing not only the title, author, publisher, and publication date, but also the edition and number of volumes. Ex. If the input is The Hobbit J. R. R. Tolkien George Allen & Unwin 21 September 1937 The Illustrated Encyclopedia of the Universe James W. Guthrie Watson-Guptill 2001 2nd 1 the output is: Book Information: Book Title: The Hobbit Author: J. R. R. Tolkien Publisher: George Allen & Unwin Publication Date: 21 September 1937 Book Information: Book Title: The Illustrated Encyclopedia of the Universe Author: James W. Guthrie Publisher: Watson-Guptill Publication Date: 2001 Edition: 2nd Number of Volumes: 1 Note: Indentations use 3 spaces 261744 1399928 LAB ACTIVITY 11.17.1: LAB: Book information (overriding member methods) 0/10 File is marked as read only Current file: BookInformation.java 1 import java.util.Scanner; 3 public class BookInformation 2
Computers and Technology
1 answer:
IgorC [24]3 years ago
8 0

Answer:

Explanation:

The Book class and BookInformation class was not provided but was found online. After analyzing both of these classes I have created the following code that grabs and overrides the printInfo() method in order to add and print the edition and number of volumes as well

public class Encyclopedia extends Book {

   String edition;

   int numVolumes;

   public String getEdition() {

       return edition;

   }

   public void setEdition(String edition) {

       this.edition = edition;

   }

   public int getNumVolumes() {

       return numVolumes;

   }

   public void setNumVolumes(int numVolumes) {

       this.numVolumes = numVolumes;

   }

   public void printInfo() {

       System.out.println("Book Information: ");

       System.out.println(" Book Title: " + super.title);

       System.out.println(" Author: " + author);

       System.out.println(" Publisher: " + publisher);

       System.out.println(" Publication Date: " + publicationDate);

       System.out.println(" Edition: " + getEdition());

       System.out.println(" Number of Volumes: " + getNumVolumes());

   }

}

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marusya05 [52]

Answer:

Customer(1) - (1) Vehicle.

Explanation:

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The car dealer in the question, sells one car to a customer and keep or prioritise the record of the main owner of the acquired vehicle. So the maximum cardinality assignment of the customer and vehicle is one (1) to one (1) mapping.

6 0
3 years ago
Which of the following is NOT one of the three basic structures used to solved logical problems?
Oliga [24]
I think module is not one of the theee basic structure
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A laptop computer has two internal signals: An unplugged signal, which is '1' if the laptop's power supply is connected, and '0'
Brums [2.3K]

Answer:

The correct usage is a NOR gate which is indicated in the explanation.

Explanation:

The truth table for the given two signals, namely

p=unplugged signal

q=low battery signal

can  form a truth table of following form

Here p has 2 states

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0 otherwise

Similarly q has 2 states

0 if the battery has reached almost zero state

1 otherwise

As the condition for the Hibernate Signal is given as to only activate when the battery is low and the power supply is not connected. This indicate that the value of Hibernate signal should be 1 when both p and q are 0.

Using this condition, the truth table is formed as

unplugged signal | low battery signal |  Hibernate Signal

            0               |                 0             |             1

            0               |                 1              |             0

            1                |                 0             |             0

            1                |                 1              |             0

Now the truth table of NOR is given as

a    |     b    |  a or b   |   ~(a or b)

0    |     0    |      0      |        1

0    |     1     |      1       |        0

1     |     0    |      1       |        0

1     |     1     |      1       |        0

This indicates that the both truth tables are same thus the NOR gate is to be used for this purpose.

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Answer:

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