Question

Assignment 7 Preparation

This assignment will focus on the use of loops, random numbers, named constants, and arrays.

Assignment 7

Assignment 7 Submission

Follow the directions below to submit Assignment 7: Create a Java program. The class name for the program should be 'RandomDistributionCheck'. In the main method you should perform the following: You should generate 10,000,000 random numbers between 0 - 19. You should use an array to hold the number of times each random number is generated. When you are done, generating random numbers, you should output the random number, the number of times it occurred, and the percentage of all occurrences. The output should be displayed using one line for each random number. Use named constants for the number of iterations (10,000,000) and a second named constant for the number of unique random numbers to be generated (20). Grading criteria:

Answer 1

JAVA CODE :

import java.util.*;
public class Main
{
   public static void main(String[] args) {
   final int ITERATIONS = 10000000;
   final int UniqueNumbers = 20;
   Random rand = new Random();
int arr[] = new int[UniqueNumbers];
for(int i=0;i<ITERATIONS ; i++){
int rand_int1 = rand.nextInt(UniqueNumbers);
arr[rand_int1]++;
}
  
   for(int i=0;i<UniqueNumbers ; i++){
float sum = (float)arr[i]/(float)ITERATIONS ;
sum=sum*(float)100.0;
System.out.println(i + " occurs " + arr[i] + " times and Percentage is : " + sum) ;
   }
   }
}

OUTPUT :