I have an assignment using the Sieve of Eratosthenes to identify prime numbers. The user will input the maximum number of array elements and the program will compute the prime numbers. The main method is required. How do I pass the user's input value to the computePrime method of the same class? THANKS FOR ANY INPUT YOU CAN PROVIDE!!!!

import java.io.*;
public class Lab13A100
{
public static void main(String args[])throws IOException
{
System.out.println("\nLAB13A 100 POINT VERSION\n");
BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter the primes upper bound: ");
final int MAX = Integer.parseInt(input.readLine());
boolean primes[] = new boolean[MAX+1];
System.out.println("Computing Prime Numbers");
System.out.println("");
computePrimes(primes);
System.out.println("Primes Between 1 and " +MAX);
System.out.println("");
displayPrimes(primes);
}

public static void computePrimes(boolean primes[])// computes prime numbers
{
int max = MAX
//sets all numbers to primes
for(int i = 0; i <= max; i++)
primes[i] = true;
primes[0] = primes[1] = false;
// To compute all primes less than MAX, we need to rule out
// multiples of all integers less than the square root of max.
int n = (int) Math.ceil(Math.sqrt(max));
//For each integer i from 0 to n:
//If i is a prime, then none of its multiples are primes, so
//indicate this in the array by looping through its multiples
// noting they are not prime.
for(int i = 0; i <= n; i++)
{
if (primes[i])
for(int j = 2*i; j <= max; j = j + i)
primes[j] = false;
}
}
public static void displayPrimes(boolean primes[])
{
int max = MAX;
for(int i=0;i<=max;i++)
if (primes[i]==true)
System.out.print(i+" ");
}

}