New to Java

I'm trying to develop a program that will read any text file that has a list of integers; and then places those values into an array. The arrays length equals the number of lines (each line consisting of one integer); and each index of the array holds the integer on its perspective line.

I've developed the following code; I know that it'll get the proper length of lines within a text file (I've tested that part)..
But after that something goes wrong in the for loop I think..

import java.io.*;
import java.util.*;

public class calculate
{
	public static void main(String[] args)
	{
		try
		{
		 System.out.println("Enter output file name:");
		 Scanner keyboard = new Scanner(System.in);
		 String fileName = keyboard.next();
		 BufferedReader inputStream = new BufferedReader(new FileReader(fileName));
			
		 int i;
		 int length = 0;
       	                 while (inputStream.readLine() != null)
                                 length++;
		 int[] array = new int[length];

		 for (i = 0; i < array.length; i++)
		 array[i] = inputStream.read();
			
		 int max = array[0];
		 int min = array[0];
		 for(i = 0; i < array.length; i++){
    		 if(array[i] > max) max = array;

		if(array[i] < min) min = array[i];}

		

		System.out.println("Largest = " + max);

		System.out.println("Smallest = " + min);

		}

		catch(IOException e)

	{

System.out.println("Error reading from file");

	}

	

	}

}
the text file can be any file name with any amount of numbers that perhaps looks like the following..

numbers.txt
23

14

36