Please please help. I need to get this code working ASAp

Question

hi! right, I am a java dunce. I am doing a web design degree at uni and annoyingly have to take a programming module. I just don't get it one bit and the lecturer is a sadist and won't help. I have tried countless books and what not but it all goes over my head.... to the problem
We were given some code for a "guess the number" game. it generates a random number between 1 and 1000. You then have to guess the number. If you guess higher it should output "you ned to guess higher" and visa versa. Also if you enter 0 it should exit the program (which it does)
The code had logical and syntax erros in it most of which I think I have managed to find but it still does not work and I have been at this for hours now (even my headache has a headache)
It compiles now but when you enter a number the program just spits out the line "Enter your guess, from 1 to 1000 inclusive (0 to quit):" again but doesn't tell you if you should go higher or lower.
I can only get it to spit out the "you need to guess lower" line if you enter a number above 1000 which is wrong.
please please help me. Just point me in the right direction or something but please use novice language or I think I might have to go jump of the nearest peir.
The code I have so far is:
import java.util.*;
public class guessgame2
public static void main(String[] args)
// Declare variables, setup keyboard input and the
// random number generator
int game_number, user_number;
String continue_pref;
Scanner data_input = new Scanner(System.in);
Random generate = new Random();
do
// Generate game number
game_number = generate.nextInt(999) + 1;
// The following line is a debug line, comment out
// for real game.
// System.out.printf("Game number:%d%n", game_number);
// Get users first guess
System.out.print("The computer has generated a number.");
do
System.out.printf("%nEnter your guess, from 1 to 1000 inclusive (0 to quit):");
user_number = data_input.nextInt();
} while ((user_number >= 1) && (user_number <= 1000));
// While user has not guessed right and does not want to quit
while ((user_number == game_number) || (user_number != 0))
if (user_number > game_number)
System.out.printf("You need to guess lower%n");
else
System.out.printf("You need to guess higher%n");
// Get users next guess
do
System.out.printf("%nEnter your guess, from 1 to 1000 inclusive (0 to quit):");
user_number = data_input.nextInt();
} while ((user_number >= 1) && (user_number <= 1000));
if (user_number == game_number);
// User has guessed right
System.out.printf("%nYou guessed correctly, well done.%nDo you want to play again (y/Y)=Yes: ");
continue_pref = new String(data_input.next());
if (user_number == 0)
// User wants to quit
continue_pref = new String("No");
} while (continue_pref.equalsIgnoreCase("N"));
} (thankyou)

Answer 1

Is this posted in two different sections of the forum? Oh well... here you
are, would be a good idea to do as WIlfred_Death suggested and write
out what you need your program to do, then put them in the order for
them to work, and then convert your notes to code, and then you get
like so....
import java.util.*;
import java.io.*;
public class guessgame2{
     public static void main(String[] args) throws IOException{
          BufferedReader userIn = new BufferedReader(new InputStreamReader(System.in));
          Scanner data_input = new Scanner(System.in);
          Random generate = new Random();
          int game_number, user_number;
          String continue_pref = "Y";
          Boolean done = false;
          int max = 1000;
          int min = 1;
          System.out.println("Would you like to play my guessing game?(y/n) ");
          continue_pref = userIn.readLine();
          continue_pref = continue_pref.trim();
          game_number = generate.nextInt(999) + 1;
          //System.out.println(game_number);//--->UNCOMMENT THIS IF YOU WANT TO DISPLAY game_number<---
          /*-----Run program while user agrees to-----*/
          while(continue_pref.equalsIgnoreCase("Y")){
               /*-----Let user guess until they win or choose to quit-----*/
               while(!done){
                    System.out.println("Enter your guess, from 1 to 1000 inclusive(0 to quit):");
                    user_number = data_input.nextInt();
                    /*-----check if user wants to quit-----*/
                    if(user_number==0){
                         continue_pref = "n";
                         done=true;
                    else{
                         /*-----Check if user won-----*/
                         if(user_number==game_number){
                              System.out.println("Congradulations you've won! Would you like to continue(y/n)?");
                              continue_pref = userIn.readLine();
                              continue_pref = continue_pref.trim();
                              /*-----If user wants to play again,
                                        regenerate game_number-----*/
                              if(continue_pref.equalsIgnoreCase("n")){
                                   done=true;
                              else{
                                   game_number = generate.nextInt(999)+1;
                                   //System.out.println(game_number);//--->UNCOMMENT THIS IF YOU WANT TO DISPLAY game_number<---
                         }/*-----Check if user number is lower-----*/
                         else if(user_number<game_number){
                              System.out.println("You need to guess higher!\n");
                         else{/*-----Number must be higher-----*/
                              System.out.println("You need to guess lower!\n");
}