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POHow to do an addition from random numbers by the user?
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copied!<p>I am new to Java and I would like some help. I have to solve this problem and I have it almost 90% solved:</p> <ol> <li>Prompt the user to enter number of students. It must be a number that is perfectly divisible by 10 i.e. (number % 10) = 0</li> <li>Check user input. If user input is not divisible by 10, keep asking the user for input until he enter a right number.</li> <li>Accept user input and generate that many random numbers in the range from 0 to 100.</li> <li>Print a matrix of random numbers and calculate the sum and average of all these random numbers and print them to the user.</li> <li>Format sum and average to three decimal points.</li> </ol> <p>This is my code so far:</p> <pre><code>import java.text.DecimalFormat; import java.util.Scanner; public class Calculator10 { public static void main(String[] args) { Scanner user_input = new Scanner(System.in); int num; do { System.out.print("Enter a number: "); num = user_input.nextInt(); } while(num % 10 != 0); double numb; DecimalFormat dec = new DecimalFormat("0.00"); for (int i=0; i<num; i++){ numb = Math.abs(Math.random() * ( 0 - 100 )); System.out.print(" " +dec.format(numb) + " "); } } } </code></pre> <p>As you can see, I have solved until the first part of # 4. I am not sure how I could sum all those random numbers displayed on the screen after user input. Of course, we have to store them in an array but I tried to do that but couldn't. So, how could I complete step #4 and 5? I would appreciate any help. Thanks a lot guys.</p>

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