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xz_007 [3.2K]
2 years ago
8

Definition: This modern-day country was one of the most advanced ancient civilizations. Human

Computers and Technology
1 answer:
igor_vitrenko [27]2 years ago
3 0

Answer: egypt

Explanation:

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Which of the following class definition defines a legal abstract class Group of answer choices public class Rectangle abstract {
valkas [14]
<h2>Question</h2>

Which of the following class definition defines a legal abstract class Group of answer choices

(a)

public class Rectangle abstract {

   public abstract double findArea ( );

   

}

(b)

public abstract class Rectangle {

   public abstract double findArea ( );

   

}

(c)

public class Rectangle {

   public abstract double findArea ( );

   

}

(d)

public class abstract Rectangle {

   public abstract double findArea ( );

   

}

<h2>Answer:</h2>

(b)

public abstract class Rectangle {

   public abstract double findArea ( );

}

<h2>Explanation:</h2>

When a class is declared with the abstract keyword, the class is called an abstract class. Abstract classes cannot be instantiated and may include one or more abstract methods. If a class contains an abstract method, then it (the class) must be declared abstract.

In Java, abstract classes are defined using the following format:

<em>[access_modifier]</em> abstract class <em>[name_of_class]</em>

[access_modifier] specifies the access modifier of the class which could be public, private, e.t.c

abstract is the keyword that specifies that the class is an abstract class.

class is a keyword used for defining classes

name_of_class specifies the name of the class.

The only option that fulfils this format is <em>option b</em> where;

(i) The access modifier is public

(ii) The name of the class is Rectangle

Option a is not correct because the <em>abstract</em> keyword is supposed to come before the <em>class</em> keyword.

Option c is not correct because the keyword <em>abstract</em> is missing. In other words, the class must be declared abstract since it contains abstract method findArea();

Option d is not correct because the <em>abstract</em> keyword is supposed to come before the <em>class</em> keyword.

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2 years ago
Which of the following is a step in paraphrasing? Skim the original information to get a sense of what it is about. Select a few
Sedaia [141]
Select a few key words to change to your own words
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3 years ago
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A _____ is a network that uses multiple access points to link a series of devices that speak to each other to form a network con
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I think the answer is WAN (wide area network)
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If you were the IT manager for a large manufacturing company,what issues might you have with the use of opensource software? Wha
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Answer: Having the ability to change the source code to fit your needs

Explanation:

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A weak fuel to air mixture along with normal airflow through a turbine engine may result in?
Sladkaya [172]

Answer:

A weak fuel to air mixture along with normal airflow through a turbine engine may result in <u>a lean die out</u>.

Explanation:

Lean die out is a type of problem that may occur in the turbine. This may result in the weak fuel to air mixture. In case if the mixture of fuel and air is getting low due to some reasons like leakage of gas or low speed of engine may result in dangerous conditions such as fire or blast in the turbine. This is called lean die out. In the result of this problem, the turbine can be burn with the blast and may leads to causalities.

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