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4 years ago

5

The BIOS feature that enables a hard drive to read or write several sectors at a time is called what?

Computers and Technology

1 answer:

lukranit [14]4 years ago

4 0

The BIOS feature that enables a hard drive to read or write several sectors at a time is called IDE block mode

Explanation:

IDE block mode setting speeds up IDE drivers when enabled by allowing multiple sectors to read or write operations. This BIOS feature rushes up hard disk drive passage by transferring many divisions of data per interrupt rather than using the normal single-sector transfer mode.

This mode of transfer is known as block transfers. When block transfers are enabled, depends on the IDE controller, nearly 64 KB of data can be transferred per interrupt.

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3 years ago

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.

7 0

3 years ago

Consider the following class definitions.public class Bike{private int numWheels = 2;// No constructor defined}public class EBik

nadya68 [22]

Answer:

The answer is "Option A".

Explanation:

Please find the complete program in the attached file.

The given program includes a super-class Bike having a private integer numWheels parameter. The class EBike inherits the class Bike, EBike comprises one parameter function Object() which utilizes its variable number of the private integer Battery level of the battery parameter and the wrong choice can be defined as follows:

In choice B, it is wrong since there is no constructor with a single argument in the Bike class.

In choice C, it is wrong since there no need to call the base class constructor with the super keyword.

In choice, D is wrong because there no need to create a constructor of the base class.

In choice, E is wrong because it does not require the second EBike constructor parameter.

4 0

3 years ago