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AlexFokin [52]
3 years ago
15

A user complains that his new mouse doesn't work right. He has an old system at home and when he has had this problem, he cleane

d the ball on the underside of the mouse to fix it, but this mouse doesn't have a ball on the underside. What can you tell him about his mouse?
A) the ball must have fallen out
B) the ball is hidden under an access panel on new mice
C) the mouse is an optical mouse
D) the mouse uses sonar to detect movement
Computers and Technology
1 answer:
topjm [15]3 years ago
4 0

Answer:

the mouse is an optical mouse

Explanation:

The user's mouse does not have a ball to be cleaned when it does not work right because he or she is using an optical mouse. This type of mouse does not use the old-ball-system, but rather uses a light source, which usually consist of a light detector and a light-emitting diode, and this set-up ensures that movement is detected relative to a surface and hence the cursor is moved too.

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Mrac [35]

Answer:

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3 0
3 years ago
Double any element's value that is less than controlValue. Ex: If controlValue = 10, then dataPoints = {2, 12, 9, 20} becomes {4
Aleksandr [31]

Answer:

import java.util.Scanner;

public class StudentScores

{

public static void main(String[] args) {

 Scanner scnr = new Scanner(System.in);

 final int NUM_POINTS = 4;

 int[] dataPoints = new int[NUM_POINTS];

 int controlValue;

 int i;

 controlValue = scnr.nextInt();

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

     dataPoints[i] = scnr.nextInt();

 }

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

     System.out.print(dataPoints[i] + " ");

 }

 System.out.println();

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

     if(dataPoints[i] < controlValue){

         dataPoints[i] = dataPoints[i] * 2;          

     }

     System.out.print(dataPoints[i] + " ");

 }

}

}

Explanation:

*Added parts highligted.

After getting the control value and values for the array, you printed them.

Create a for loop that iterates through the dataPoints. Inside the loop, check if a value in dataPoints is smaller than the contorolValue. If it is, multiply that value with 2 and assign it to the dataPoints array. Print the elements of the dataPoints

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Answer:

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Explanation:

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<h2><u>Fill in  the blanks </u></h2>

Proponents of Internet freedom see its <u>anonymity </u>as providing protection for unpopular expression; proponents of greater Internet control see it as the Internet's greatest danger.

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