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2 years ago

Which telecommunications device is widely used in industries that require closed communication?

Computers and Technology

2 answers:

forsale [732]2 years ago

7 0

Answer:

<u>D. walkie-talkies </u>

Explanation:

<u>walkie-talkies </u>are used in industries that require closed communication

Stella [2.4K]2 years ago

3 0

The telecommunications device that is widely used in industries that require closed communication are walkie-talkies. Correct answer: D

Walkie-talkies are hand-held, portable, two-way radio transceivers which enable secure communication between the two points, without being part of a network.

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Does the submission include the file "SuperPower.java"? Does the file include a public class called "SuperPower"? Does the class

Oduvanchick [21]

Answer:

Here is the program fulfilling all the requirements given:

import javax.swing.JOptionPane;

public class SuperPower{

public static void main(String[] args) {

String power;

power = JOptionPane.showInputDialog("What is your super power?");

power = power.toUpperCase();

JOptionPane.showMessageDialog(null, power);} }

Explanation:

Does the file include a public class called "SuperPower"

See the statement:

public class SuperPower

Does the class include a public method called "main"? Is the "main" method static?

See the statement:

public static void main(String[] args)

Does the main method have a String assignment statement that uses "JOptionPane.showInputDialog"

See the statement:

power = JOptionPane.showInputDialog("What is your super power?");

Does the main method have a statement that uses "JOptionPane.showMessageDialog"?

See the statement:

JOptionPane.showMessageDialog(null, power);

Does the program convert the String from "JOptionPane.showInputDialog" using the "toUpperCase" method?

See the statement:

power = power.toUpperCase();

Does the submission include a screenshot that shows an Input dialog that asks, "What is your superpower?" Does the submission include a screenshot that shows a Message dialog stating " TO THE RESCUE!", where "" is the input converted to upper case?

See the attached screenshots

If the program does not let you enter an exclamation mark after "to the rescue" then you can alter the code as follows:

import javax.swing.JOptionPane;

public class SuperPower{

public static void main(String[] args) {

String power;

power = JOptionPane.showInputDialog("What is your super power?");

power = power.toUpperCase();

JOptionPane.showMessageDialog( null, power+"!");} } // here just add an exclamation mark which will add ! after the string stored in power

5 0

2 years ago

Peter accumulated many photos from his visit to Wisconsin. He wants to upload these photos to a social networking site. Which fi

daser333 [38]

Answer:

JPG / JPEG best choice and work well on websites

Explanation:

JPEGs contains millions of colors, so this type of file is ideal for photographs.

Best choice for posting on social media channels

7 0

2 years ago

A data center designer requested additional lighting for the entrance to the data center as well as the removal of a object whic

Ira Lisetskai [31]

Answer:

SURVEILLANCE-SPECIFIC DESIGN.

Explanation:

Defensible space offers a series of architectural guidelines that can be used in the design of new urban residential complexes to promote both the residential group’s territorial claim to its surroundings and its ability to conduct natural surveillance. The designs are: site interrelationship design, site design, street design and surveillance-specific design.

Surveillance-specific design can be used to increase general visibility by providing adequate lighting, by reducing or eliminating physical barriers to visibility, and by the visibility-promoting location of key areas (entrances, lobbies, elevator waiting areas, parking areas e.t.c.) so as to be directly visible from as many viewpoints as possible.

Since the data center designer requested additional lighting for the entrance to the data center as well as the removal of a object which is blocking security's view of the entrance, then it is an example of SURVEILLANCE-SPECIFIC DESIGN.

6 0

1 year ago

Write a program to declare a matrix A[][] of order (MXN) where ‘M’ is the number of rows and ‘N’ is the

Liula [17]

Answer:

import java.io.*;

import java.util.Arrays;

class Main {

public static void main(String args[])

throws IOException{

// Set up keyboard input

InputStreamReader in = new InputStreamReader(System.in);

BufferedReader br = new BufferedReader(in);

// Prompt for dimensions MxN of the matrix

System.out.print("M = ");

int m = Integer.parseInt(br.readLine());

System.out.print("N = ");

int n = Integer.parseInt(br.readLine());

// Check if input is within bounds, exit if not

if(m <= 2 || m >= 10 || n <= 2 || n >= 10){

System.out.println("Matrix size out of range.");

return;

}

// Declare the matrix as two-dimensional int array

int a[][] = new int[m][n];

// Prompt for values of the matrix elements

System.out.println("Enter elements of matrix:");

for(int i = 0; i < m; i++){

for(int j = 0; j < n; j++){

a[i][j] = Integer.parseInt(br.readLine());

}

// Output the original matrix

System.out.println("Original Matrix:");

printMatrix(a);

// Sort each row

for(int i = 0; i < m; i++){

Arrays.sort(a[i]);

}

// Print sorted matrix

System.out.println("Matrix after sorting rows:");

printMatrix(a);

}

// Print the matrix elements separated by tabs

public static void printMatrix(int[][] a) {

for(int i = 0; i < a.length; i++){

for(int j = 0; j < a[i].length; j++)

System.out.print(a[i][j] + "\t");

System.out.println();

}

Explanation:

I fixed the mistake in the original code and put comments in to describe each section. The mistake was that the entire matrix was sorted, while only the individual rows needed to be sorted. This even simplifies the program. I also factored out a printMatrix() method because it is used twice.

4 0

1 year ago

Ishmael would like to capture a selected portion of his screen and then capture actions he preforms on that selected portion. Wh

kompoz [17]

Answer:

Use the Insert Screen .

Explanation:

Remember, on most computer keyboard you'll find a button named "Insert Screen' which functions as a screenshot too. Also, note that if Ishmael is using Windows operating system he should simply do the following;

1. open the window you want to screenshot

2. click the Screenshot button

But to select a part of the screen he would need to use Screen Clipping which would allow him select the part of the window that he wants. ( It screen will look opaque)

3. the pointer would change to a cross, then he should press and hold the left mouse button and drag to select the part of the screen that he wants to capture.

5 0

1 year ago