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2 years ago

Have a look at the lines of code below. Over the next 3 questions, we will write code that opens a file

Computers and Technology

1 answer:

Lelechka [254]2 years ago

8 0

Answer:

20 File file = new File("MyName.txt");

21 Scanner inputFile = new Scanner(file);

22 if(inputFile.hasNext())

23 {

24 String str = inputFile.next();

25 System.out.println(str);

26 }

Explanation:

We should put the file path (in string) in Line 20. When using File class, we need to input the file directory path as argument to create a file object. This file object will become the input to create a Scanner object (Line 21) and hasNext() method is used to check if there is any contents in next token (Line 22). If so, use next() method to get the first line of contents and assigned it to variable str (Line 24) and print it out (Line 25).

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A slide in Blake's presentation contained the following information:

deff fn [24]

Answer:

consistent phrasing is missing

Explanation:

If you will note carefully, the bullets are not in correct format. The model is missing. The correct one is as below.

Risks

The correct form of presentation is as below:

1. Risks

a. employees

a. physical illness

b. mental illness

c. death

2. Customers

a. complaints

b. downtime

3. Benefits

However, the content seems to be complete now, and hence not anything else is required. And since its not something very tough to decide to go with, bite the bullet is certainly not an issue.

3 0

2 years ago

You are a technical consultant for many businesses in your community. One of your clients, a small law firm, has a single Active

stellarik [79]

COMPLETE QUESTION:

You are a technical consultant for many businesses in your community. One of your clients, a small law firm, has a single Active Directory domain. They have two servers running Windows Server 2012 R2. Both servers are configured as domain controllers while also serving as file and printer servers.This client is calling you on a regular basis because users are deleting or damaging their files. You must visit the client's site and restore the files from backup. Your client has asked you to create an alternate solution. What should you do?

Answer:

Use the Windows VSS to create shadow copies on important data

Explanation:

Volume Snapshot Service (VSS) is a service available to Windows Operating Systems which allows safe backup of open files as well as locked ones. It does this by taking a snapshot the state of the drive, this snapshot information will be provided to the backup application whenever needed. It is important to mention that this service is only available on files which are in the NTFS format

8 0

2 years ago

In a relational database model, a(n) _____ operation pares down a table by eliminating columns according to certain criteria. in

nikklg [1K]

I guess the correct answer is Project

If thе usеr is intеrеstеd in sеlеcting thе valuеs οf a fеw attributеs, rathеr than sеlеctiοn all attributеs οf thе Tablе (Rеlatiοn), thеn οnе shοuld gο fοr Prοjеct Οpеratiοn.

8 0

2 years ago

Multiply each element in origList with the corresponding value in offsetAmount. Print each product followed by a semicolon (no s

Pavlova-9 [17]

Answer:

Replace /* Your code goes here */ with

for(i =0; i<NUM_VALS; i++) {

printf("%d", origList[i]*offsetAmount[i]);

printf(";");

}

Explanation:

The first line is an iteration statement iterates from 0 till the last element in origList and offsetAmount

for(i =0; i<NUM_VALS; i++) {

This line calculates and print the product of element in origList and its corresponding element in offsetAmount

printf("%d", origList[i]*offsetAmount[i]);

This line prints a semicolon after the product has been calculated and printed

printf(";");

Iteration ends here

}

5 0

2 years ago

2.32 LAB: Musical note frequencies On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency o

Maurinko [17]

Answer:

#include<iostream>

#include<iomanip>

#include<cmath>

using namespace std;

int main()

{

float f0;

cout<<"Initial Frequency: ";

cin>>f0;

for(int n = 1; n<=5;n++)

{

cout<<f0<<setprecision(2);

f0 = f0 * pow(2.0,1.0/12);

cout<<" ";

}

return 0;

}

Explanation:

The programming language is not stated; However, one can easily deduce that the program is to be written using C++

The following libraries enable the program to make use of some built in functions

#include<iostream>

#include<iomanip>

#include<cmath>

using namespace std;

int main()

{

This line declares the initial frequency as float

float f0;

This line prompts user for input

cout<<"Initial Frequency: ";

This line gets user input

cin>>f0;

The following iteration calculates and prints the frequency for thenexr 4 keys

for(int n = 1; n<=5;n++)

{

cout<<f0<<setprecision(2);

f0 = f0 * pow(2.0,1.0/12);

cout<<" ";

}

return 0;

}

7 0

2 years ago