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tia_tia [17]
2 years ago
7

Suggest how the following requirements might be rewritten in a quantitative way. You may use any metrics you like to express the

requirements Req. 1 The library system shall be easy-to-use. Req. 2 The library system shall provide reliable service to all classes of user. Req. 3 The library system shall provide a rapid response to all user requests for book information
Computers and Technology
1 answer:
kotegsom [21]2 years ago
3 0

Answer:

Did you get the answer yet or not or should i sent it?

Explanation:

You might be interested in
Assume that the reference variable r refers to a serializable object. Write code that serializes the object to the file ObjectDa
laiz [17]

Answer:

FileOutputStream out = new FileOutputStream("ObjectData.dat");

ObjectOutputStream ostream = new ObjectOutputStream(out);

ostream.writeObject(r);

Explanation:

For object serialization, we can use the writeObject method of java.io.ObjectOutputStream class.

The complete code fragment is as follows:

import java.io.*;

class Demo{

      public static void main(String args[]){

             try{

                  r = <Reference to Object to be serialized> ;

                 FileOutputStream out = new FileOutputStream("ObjectData.dat");

                 ObjectOutputStream ostream = new ObjectOutputStream(out);

                  ostream.writeObject(r);

                 ostream.close();

            } catch(Exception e){

                   e.printStackTrace();

            }

      }

}

5 0
2 years ago
Catherine wants to search online for fruit juices. She is fine with aerated or fresh fruit juices. Which Boolean operator will e
ZanzabumX [31]
<h2>Answer:</h2>

<u>She will use the </u><u>OR Boolean operator</u>

<h2>Explanation:</h2>

Boolean Operators are used to connect and define the relationship between your search terms. Doing searching in any electronic databases like Google search engine, we use Boolean operators to either narrow or broaden our searches. The three Boolean operators are AND, OR and NOT. Among these operators OR is used to add the items. Since Catherine is searching for aerated or fresh fruit juices so she needs both the results therefore she must use OR operator.


8 0
2 years ago
Read 2 more answers
Acceleration is the rate at which an object changes its velocity. It is typically represented by symbol a and measured in m/s2 (
Natalija [7]

Answer:

<u>Pseudocode:</u>

INPUT velocity

INPUT time

SET velocity = 0.44704 * velocity

SET acceleration = velocity / time

SET acceleration = round(acceleration, 1)

PRINT acceleration

<u>Code:</u>

velocity = float(input("Enter a velocity in miles per hour: "))

time = float(input("Enter a time in seconds: "))

velocity = 0.44704 * velocity

acceleration = velocity / time

acceleration = round(acceleration, 1)

print("The acceleration is {:.2f}".format(acceleration))

Explanation:

*The code is in Python.

Ask the user to enter the velocity and time

Convert the miles per hour to meters per second

Calculate the acceleration using the formula

Round the acceleration to one decimal using round() method

Print the acceleration with two decimal digits

7 0
2 years ago
Java uses interfaces to provide the benefits of multiple inheritance. A superclass object is a subclass object. A subclass is of
WITCHER [35]

COMPLETE QUESTION

Which of the following is false?

a. A subclass is often larger than its super class.

b. A super class is object is a subclass object.

c. The class following the extends keyword in a class declaration is that direct super class of the class being declared.

d. Java uses interfaces to provide the benefits of multiple inheritance

Answer:

B) A super class is object is a subclass object.

Explanation:

In object oriented programming, the concept of inheritance is greatly utilized, this refers to deriving a class from another class. The derived class is the sub-class and it is derived from its super class, as a matter of fact in Java programming language, all classes are derived from some other class. Objects are made from classes with their state (fields) and behavior (methods) since objects are made from classes, the objects of the super class will not be the same as that of the subclass.

4 0
2 years ago
Given sphereRadius and piVal, compute the volume of a sphere and assign to sphereVolume. Look up the equation online (e.g., http
fenix001 [56]

Answer:

  1. #include <stdio.h>
  2. int main()
  3. {
  4.    const double piVal = 3.14159;
  5.    double sphereVolume = 0.0;
  6.    double sphereRadius = 0.0;
  7.    
  8.    sphereRadius = 1.0;
  9.    sphereVolume = 4.0/ 3.0 * piVal * sphereRadius * sphereRadius * sphereRadius;
  10.    
  11.    
  12.    printf("Sphere volume: %lf\n", sphereVolume);
  13.    return 0;
  14. }

Explanation:

Firstly we can identify the formula to calculate volume of sphere which is

Volume = 4/3 \pi r^{3}

With this formula in mind, we can apply this formula to calculate the volume of sphere in Line 10. This is important to perform floating-point division 4.0/3.0 to ensure the resulting value is a floating value as well. Since we have been given piVal and sphereRadius, we can just multiply the result of floating-point division with piVal and sphereRadius and get the sphereVolume value.

At last, display the sphere volume using printf method (Line 13).

6 0
2 years ago
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