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algol [13]
2 years ago
12

TIMED QUIZ

Computers and Technology
1 answer:
guapka [62]2 years ago
5 0

Mobile devices <u>a</u><u>r</u><u>e</u> as susceptible to malware as laptops and desktops. Most people <u>d</u><u>o</u><u> </u><u>n</u><u>o</u><u>t</u><u> </u> protect their mobile devices as well as their computers. Devices with an Apple operating system are <u>l</u><u>e</u><u>s</u><u>s</u> likely to be infected by a virus than those with an Android or Windows operating system.

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Write a program that prompts the user to enter positive integers (as many as the user enters) from standard input and prints out
julia-pushkina [17]

Answer:

Here is the JAVA program that prompts the user to enter positive integers from standard input and prints out the maximum and minimum values:

import java.util.*;

public class Ex0603 {

   public static void main(String[] args) { //start of main function

   Scanner in = new Scanner(System.in); //creates Scanner class object to take input from user

   int minimum = 0; //stores the minimum of the integers

   int maximum = 0; //stores the minimum of the integers

   int num; //stores the positive integer values

   System.out.println("enter a positive integer: ");//prompts user to enter a positive integer

   num = in.nextInt();//scans and reads the input integer value from user

   minimum = num;  //assigns value of num to minimum

   while(true) {//while loop keeps prompting user to enter a positive integer

       System.out.println("enter a positive integer: ");//prompts user to enter a positive integer

       num = in.nextInt();//scans and reads the input integer value from user

       if(num <=0)//if the user inputs a negative integer or 0

           break; //breaks the loop

       if (num > maximum) {//if the value of positive integer is greater than the maximum of value

           maximum = num; } //assigns that maximum value of num to maximum variable

       if (num < minimum) {//if the value of positive integer is less than the minimum of value

           minimum = num; //assigns that minimum value of num to minimum       }    }            

   System.out.println("The maximum integer is : " + maximum); //displays the maximum of the positive integers

   System.out.println("The minimum integer is : " + minimum); }}   //displays the minimum of the positive integers

Explanation:

Here is the JAVA program that that prompts the user to enter an integer N, then reads N double values, and prints their mean (average value) and sample standard deviation:

import java.util.*;  

public class Ex0603 {  

public static void main(String[] args) { //start of main function

Scanner in = new Scanner(System.in);  //creates Scanner class object to take input from user

double integer= 0;  //to store the number of input values

double sum = 0;  //to store the sum of input numbers

double mean = 0;  //to store the average of numbers

double sd = 0;  //to store the standard deviation result

double variance = 0;  //to store the variance result

double sumSquare = 0;  //to store the sum of (num-mean)^2

int n = 0;  //to store the sample size N

   System.out.println("Enter an integer: ");  //prompts user to enter an integer that is how many elements user wants to input

   integer = in.nextInt();  //reads the value of integer from user

   double size=integer; // declares a double type variable and assigns value of int type variable integer to this double type variable size

   int i=0;  //used to point each element of the num array

   double num[] = new double[(int)size];  //declares an array to hold the numbers input by user

   while(integer>0){  //loop executes until value of integer is greater than 0

   System.out.println("Enter a number: "); // prompts to enter a number

   num[i] = in.nextDouble(); //reads double values

   sum += num[i];  //adds the values stored in num array

   i++;  //increments i to point to the next element in num array

   n++;  //increments n to count the total number of elements

  integer--; //decrements integer value at each iteration

   mean = sum / n;    }  //compute the average of values

   i=0;  

    while(size>0){  //loop executes until value of size exceeds 0

       sumSquare += Math.pow(num[i]-mean,2); //takes the sum of square difference between each element of num array and value of mean

       i++; //increments i

      size--;   }  //decrements size

variance = sumSquare / (n-1);  //compute variance by dividing the result of sum of the squares of their differences from the mean by n-1

   sd = Math.sqrt(variance);  //computes standard deviation by using sqrt function which takes the sqrt of the result of variance computed above

System.out.println("Average value is: " + mean+ " and the standard deviation is " + String. format("%.2f", sd));   }} //displays the average of numbers stored in mean variable and value of standard deviation is displayed up to 2 decimal places

Screenshots of both programs and their outputs is attached.

7 0
3 years ago
What is the typical first shot that everyone takes? In photography
Firlakuza [10]

Answer:

the sky or of nature in general

Explanation:

7 0
2 years ago
Which type of software is created and updated by a worldwide community of programmers and is available for​ free?
Ede4ka [16]
Open source is created and updated by a worldwide community of programmers and is available for​ free. Many students are in luck, as they can easily study publicly accessible codes and have a possibility to make better software. It also has lots of advantages, such as getting <span>high-quality results when the source code is passed around, tested and fixed.The most important thing - it<span> is a valuable learning opportunity for programmers and opportunity to improve their skills.</span></span>
5 0
3 years ago
Illustrate how information technology helps organizations to cut costs by reducing switching costs and increasing competitivenes
Ulleksa [173]

Information technology is the method of choosing the best technology for working with data.

With this definition, it can be said that information technology has existed since man began to store data. Today, however, it mainly refers to electronic communication and storage of data, for which computers and other electronic equipment are used.

Information technologies are of vital importance in the functioning of business operations today, as they allow a better and more optimal organization of resources and information of companies.

Thus, companies organize their information via digital methods, make online sales, etc.

Learn more in brainly.com/question/7091883

6 0
2 years ago
Rendering is a combination of the technical and the artistic. Explain this statement.
maria [59]

<u>Rendering is a combination of the technical and the artistic.</u>

Basically artistic is images which contains media image or video in the digital format when we do the analysis through computers or desktop.

Further on the images or video we need a set of computer program to do the more analysis for our specific outcome this is term is called rendering.

It is combination of both artistic and technical.

Mostly these methods are used for medical report for patient to do further analysis to care out for future treatment.

Even bio metric images are used on this methods.

5 0
3 years ago
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