Answer this question using Java only.... write a Java program to read in all of

Question

Answer this question using Java only....

write a Java program to read in all of the numbers in the file into an array. Then find the median of the numbers and print it out to the console. The median should be of type double. The median of a list of even numbers is the average of the middle two numbers, so for this example assume the median is ((NUMBER_2+NUMBER_3) / 2). find the average of the numbers in the array.

please fix my code and finish rest of it. also leave comments where you read the numbers from file into array. and please keep it simple. btw there 4 single digit numbers in my numbers.txt file

import java.util.Scanner;
import java.io.IOException;
import java.io.File;
import java.io.PrintWriter;

public class FileArray{

   Scanner scnr = new Scanner(System.in);
  
   public static void main(String[] args) throws IOException{
  
       File myFile = new File("numbers.txt");
       Scanner inputFile = new Scanner(myFile);
      
       int[] numberFile = new int[4];
       int i = 0;
      
       while (inputFile.hasNext())
       {
           int numFile = inputFile.nextInt();
          
           System.out.println(numFile);
       }
      
       inputFile.close();
      
      

   }

}

Explanation / Answer

/**
* java program that reads a text file numbers.txt
* that contains 4 numbers into an array of size 4.
* Then finds median and average
* of the numbers and print to console
* */
//FileArray.java
import java.util.Scanner;
import java.io.IOException;
import java.io.File;
public class FileArray
{
   Scanner scnr = new Scanner(System.in);
   public static void main(String[] args) throws IOException
   {
       //createa File class object
       File myFile = new File("numbers.txt");
       //Create an instance of Scanner class object with File object
       Scanner inputFile = new Scanner(myFile);

       int[] numberFile = new int[4];      
       int i = 0;
      
       //delcare variables
       double median;
       double sum=0;
       int middle;

       //check if file contains integers
       while (inputFile.hasNextInt())
       {
           //read integer from Scanner object inputFile
           //and store in a array numberFile
           numberFile[i] = inputFile.nextInt();
           sum+=numberFile[i];
           //increment i by one
           i++;          
       }
      
       //find middle position of the array
       middle=(numberFile.length)/2;
      
       //find median of two elements at indexes middle-1 and middle
       median=(numberFile[middle-1]+numberFile[middle])/2.0;
      
       //print median
       System.out.println("Median : "+median);
       //print average
       System.out.println("Average : "+sum/numberFile.length);
      
       //close inputFile object
       inputFile.close();
      
   }//end of the main

}//end of the class
-------------------------------------------------
Sample output:

sample text file
numbers.txt
1 2 3 4

output:

Median : 2.5
Average : 2.5

Hope this helps you

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