Answer:
class fan{
private String model;
private boolean isOn;
//Constructor goes here
public fan(String model, boolean isOn) {
this.model = model;
this.isOn = isOn;
}
// An additional method goes here
public boolean turnOn(boolean yes){
if(yes) {
this.isOn=true;
System.out.println("Fan is blowing");
return true;
}
else
this.isOn=false;
System.out.println("Fan is off");
return false;
}
}
Explanation:
Demonstrating the working of the class in a main method. Below is a complete code
public class fanTest {
public static void main(String[] args) {
fan fan1 = new fan("Binatone", false);
fan1.turnOn(false);
}
}
class fan{
private String model;
private boolean isOn;
//Constructor goes here
public fan(String model, boolean isOn) {
this.model = model;
this.isOn = isOn;
}
// An additional method goes here
public boolean turnOn(boolean yes){
if(yes) {
this.isOn=true;
System.out.println("Fan is blowing");
return true;
}
else
this.isOn=false;
System.out.println("Fan is off");
return false;
}
}
Answer:
Examples of Fact-finding techniques includes:
-
Prototyping
-
Questionnaires
- Research and sites visit
-
Interviews
Explanation:
It is important to note that a database system is a tool that allows users to define, create, maintain, and control access to a collection of logically related data and description of these data, designed to meet the information needs of an organization.
<u>Prototyping
</u>
<em>Advantage:</em> enables testing and understanding of the system in advance before final implementation of solution, while requiring less time for research.
<em>Disadvantage:</em> Training and Development cost consumes resources.
<u>Research and site visit </u>
<em>Advantage :</em> better time management if the problem has been researched upon before.
<em>Disadvantage:</em> appropriate permission is often needed before using research materials.
<u> Questionnaires
</u>
<em>Advantage: </em>This technique is not expensive, and responses can be calculated and analysed quickly.
<em>Disadvantage:</em> There may be Incomplete answers received from users and body language of user cannot be observed.
<u>Interviews</u>
<em>Advantage:</em> The body language of interviewees is been perceived.
<em>
Disadvantage: </em>Interviewing is time consuming and costly.
Solution:
A(n) extranet is a lan that uses the same technologies as the internet but is provided to invited users outside the organization who access it over the internet.
An extranet is a private network that uses Internet technology and the public telecommunication system to securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses. An extranet can be viewed as part of a company's intranet that is extended to users outside the company. It has also been described as a "state of mind" in which the Internet is perceived as a way to do business with other companies as well as to sell products to customers.
This is the right answer.
