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2 years ago

What is the major function of the network access layer?

1 answer:

5 0

Th network layer is the first layer of the OSI model. It determines the media used (CAT5/6/7/Fibre/Coax). The major function is to communicate with servers and workstations.

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The base class Pet has private fields petName, and petAge. The derived class Dog extends the Pet class and includes a private fi

Lapatulllka [165]

Answer:

Hello attached is the Java program written to solve the problem

The Pet.java and Dog.java files are unaltered

Explanation:

The input and output codes are attached as well i.e the second image is the input while the third image is the output code

5 0

2 years ago

If the object instance is created in a user program, then the object instance can access both the public and private members of

rewona [7]

Answer:

False

Explanation:

The private member of a class is not accessible by using the Dot notation ,however the private member are those which are not accessible inside the class they are accessible outside the class .The public member are accessible inside the class so they are accessible by using the dot operator .

Following are the example is given below in C++ Language

#include<iostream> // header file

using namespace std;

class Rectangle

{

private:

double r; // private member

public:

double area()

{ return 3.14*r*r;

}

};

int main()

{

Rectangle r1;// creating the object

r1.r = 3.5;

double t= r1.area(); // calling

cout<<" Area is:"<<t;

return 0;

}

Output:

compile time error is generated

The correct program to access the private member of class is given below

#include<iostream> // header file

using namespace std;

class Rectangle

{

private:

double r; // private member

public:

double area()

{

r1=r;

double t2=3.14*r2*r2;

return(t2); // return the value

}

};

int main()

{

Rectangle r1;// creating the object

r1.r = 1.5;

double t= r1.area(); // calling

cout<<" Area is:"<<t;

return 0;

}

Therefore the given statement is False

5 0

2 years ago

Java languageThe cost to ship a package is a flat fee of 75 cents plus 25 cents per pound.1. Declare a constant named CENTS_PER_

Sophie [7]

Answer:

// Here is code in Java.

// import package

import java.util.*;

// class definition

class Main

{

// main method of the class

public static void main (String[] args) throws java.lang.Exception

{

try{

// variables

final int CENTS_PER_POUND = 25;

final int FLAT_FEE_CENTS = 75;

// Scanner object to read input

Scanner sr=new Scanner(System.in);

System.out.print("Enter the shipping weight:");

// read the input weight

int shipWeightPounds=sr.nextInt();

// calculate total cost

int shipCostCents = (shipWeightPounds * CENTS_PER_POUND) + FLAT_FEE_CENTS;

// print Weight

System.out.println("shipping Weight: " + shipWeightPounds);

// print flat fee

System.out.println("flat fee of shipping in cents : " + FLAT_FEE_CENTS);

// print cents per round

System.out.println("Cents/pound for shipping: " + CENTS_PER_POUND);

// print cost of Shipping

System.out.println("total cost of shipping in cents: " + shipCostCents);

}catch(Exception ex){

return;}

}

Explanation:

Declare and initialize two constant variables "CENTS_PER_POUND=25" & "FLAT_FEE_CENTS = 75". Read the input weight from user with the help of Scanner class object. Then calculate the cost of shipping by multiply weight with cent per pound and add flat fee. Then print each of them.

Output:

Enter the shipping weight:12

shipping Weight : 12

flat fee of shipping in cents: 75

Cents/pound for shipping: 25

total cost of shipping in cents: 375

8 0

2 years ago

Read 2 more answers

Lynn runs the locate command and the results include many files from a directory that she doesn't want to include in her search.

Zinaida [17]

Answer:

C) /etc/updatedb.conf

Explanation:

The locate command actually uses the configuration file located at /etc/updated.conf.

5 0

2 years ago

Read 2 more answers

The symbol asterisk(*) in a select query retrieves

Natali [406]

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The symbol asterisk (*) in a select query retrieve all result of column in the table. For example, table named "employee" has three column such as id, name, address.

To apply the symbol asterisk (*) in select querry select all the columns in the result.

for example:

select * employee;

this query statement selects all columns of table "employee" in the result.

3 0

2 years ago