Help With program

import java.io.*;
import java.util.*;
public class ComputerGuessNumberRecursion
{
public static void main (String[] args) throws IOException
{
		System.out.println ("\t\tPLEASE READ INSTRUCTIONS"+
		"\n1.You choose a number from 1-100"+
		"\n2.The computer will have 10 trys to guess your number"+
		"\n3.If the computer guesses right you LOSE!"+
		"\n4.If the computer guesses wrong you WIN!"+
		"\n5.NO LETTERS OR INVALID SYMBOLS ALLOWED!"+
		"\n6.Enjoy!");Game();
}
private static void Game() throws IOException
{
	try
	{
		BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
		String input, user_n;
		Random rand_num = new Random();
		int secret_n, comp_n, Lose = 0, max = 100, min = 1;
		System.out.print("\nPlease enter secret number: ");
		secret_n = Integer.parseInt(input = keyboard.readLine().trim());
		if(secret_n <= 0 || secret_n > 100)
		{
			System.out.print("\nError!\n-----------------\nInvalid Answer\n-----------------\nReEnter your Guess: ");
			secret_n = Integer.parseInt(input = keyboard.readLine().trim());
		}
		System.out.println("\nNow the computer will try to guess your number");
		comp_n = rand_num.nextInt(max);
		System.out.println("\nThe computer guessed: "+comp_n);
		CompGuess(secret_n, Lose, comp_n);
	}
	catch(NumberFormatException e)															
	{
		System.out.println ("Invalid entry, follow direction! Please Start Over");
		Game();
	}
	catch(NullPointerException e)															
	{
		System.out.println ("Invalid entry, follow direction! Please Start Over");
		Game();
	}
}
private static int CompGuess(int secret_n, int Lose, int comp_n) throws IOException
{
		BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
		Random rand_num = new Random();
		String user_n;
		int min = 1, max = 100;
		Lose++;
		for(int loop = 0; loop <= 10; loop++)
		{
			System.out.println("\n\nTell the computer to go Higher or go Lower: ");
			user_n = keyboard.readLine().trim();
			if(user_n.equalsIgnoreCase("higher") || user_n.equalsIgnoreCase("lower"))
			{
				System.out.println("\nThe computer guessed: "+comp_n);
				comp_n = rand_num.nextInt(max);
				randomize(max, min);
			}
			if(comp_n == secret_n)
			{
				System.out.println("\n----------------\n|COMPUTER WINS!|\n----------------");
				TryAgain();	
			}
			if (Lose == 9)
			{
				System.out.println("\n-----------------\n|COMPUTER LOSES!|\n-----------------");
				TryAgain();
			}	
		}
		return comp_n;
}
private static int randomize(int max, int min)
{
	Random num_generator = new Random();
	int generate = 0;
	while(generate >= min)
	{
		generate = num_generator.nextInt(max);
	}
	return generate;
}
public static void TryAgain() throws IOException												
{
	String TryAgain;
	BufferedReader keyboard = new BufferedReader (new InputStreamReader (System.in));
	do
	{
		System.out.print ("\nWould you like to try again? type in (Y/N): ");
		TryAgain = keyboard.readLine().trim();
		if (TryAgain.equalsIgnoreCase ("y"))
		{
			Game();	
		}																																	
		if (TryAgain.equalsIgnoreCase ("n"))
		{
			System.exit(0);
		}																										
		else
		{
			System.out.print("\nError!\n-----------------\nInvalid Answer\n-----------------");
		}
	}
	while (!TryAgain.equalsIgnoreCase ("y") || !TryAgain.equalsIgnoreCase ("n"));					
}										
}

            if(secret_n <= 0 || secret_n > 100)
            {
               System.out.print("\nError!\n-----------------\nInvalid Answer\n-----------------\nReEnter your Guess: ");
               secret_n = Integer.parseInt(input = keyboard.readLine().trim());
            }

/* generate a number 0<comp_n<max */
comp_n = rand_num.nextInt(max);

/* 
 * So if player chose lower, then you would generate a
 * numbe between 0 and comp_n
 */
max = comp_n;
comp_n = rand_num.nextInt(max);

/* 
 * If player chose Higher, then you need to generate a number
 * between comp_n and max 
 */
min = comp_n;
comp_n = rand_num.nextInt(max-min) + min;

//the rest you should be able to figure out.