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8_murik_8 [283]
3 years ago
15

In the revised version of the library system with Book and Periodical, Question 16 options: a) Book is a subclass of Periodical

b) Periodical is a subclass of Book c) Book and Periodical are subclasses of LoanableItem d) Book and Periodical implement LoanableItem
Computers and Technology
1 answer:
maxonik [38]3 years ago
3 0

Answer:

c. Book and Periodical are subclasses of LoanableItem

Explanation:

Books are kept in library in a periodical manner. Both classes are not superior, they are subclasses of LoanableItem. Library uses common guide which makes it easy to find a book.

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Which of the following activities are performed by computer programmers? Choose all that apply.
AleksAgata [21]

Answer:

- They write step by step instructions for a computer to follow.

- They create a logic problem that the computer program can solve.

3 0
3 years ago
I need to create a method named "root positive". which will either print the square root of the number passed to it or if the nu
rjkz [21]

Answer:

Explanation:

The following code is written in Java. It is a method that calculates the square root of a number as requested. The method first checks with an IF statement if the parameter value is a positive number and then calculates the square root and prints it to the screen. Otherwise, it prints Number must not be negative. A test case has been provided in the main method and the output can be seen in the attached image below.

import java.util.Scanner;

class Brainly {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.print("Enter a number of type double to calculate square root:");

       double num = in.nextDouble();

       rootPositive(num);

   }

   public static void rootPositive(double num) {

       if (num > 0) {

           System.out.println(Math.sqrt(num));

       } else {

           System.out.println("Number must not be negative.");

       }

   }

}

5 0
3 years ago
In a _____ network, each device on the network is attached to a central router. If the router fails, then the other devices will
Damm [24]

Answer:

In a STAR TOPOLOGY network, each device on the network is attached to a central router. If the router fails, then the other devices will be unable to communicate, but if only one connected device fails, then all other devices will still be able to communicate.

Explanation:

In this type of topology all the computers are connected to a single router through a cable. This router is the central node and all others nodes are connected to the central node.

7 0
2 years ago
The results of the SPEC CPU2006 bzip2 benchmark running on an AMD Barcelona has an instruction count of 2.389E12, an execution t
xxTIMURxx [149]

Answer:

inside a butt whole

Explanation:

3 0
3 years ago
For window 7 explain the steps you will use to find the available program you will list.
Alex_Xolod [135]
Follow these steps.
1. Make sure that your pc is on.
2. Press your Window key - on your bottom left of your keyboard you will see a window key. 
3. After pressing it will show a tab on your bottom left of your monitor.
4. On that tab you will see an (All Programs) text.
5. Click it and it will show all programs available on your pc.
8 0
3 years ago
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