set mystery equal to call random(0,9999)
set right equal to true
set counter equal to 1
for (counter equal to 1;
     counter less than or equal 10;
     increment counter by 1)
  begin
     print "Enter guess : "
     read guess

     if (guess equal to msystery)
        set right equal to true
     else if (guess is less than mystery)
        print "too low."
     else
        print "too high."

     if (right equal to true)
       set counter equal to 10
     increment tries by 1
  end
  if (right equal to true)
    print"you guess it, it takes " + tries + " try."
  else
    print"sorry, mystery is " + mystery

import java.io.*;

public class NumberGuess{
    
    public static void main (String[] args){
        boolean guessedNumber = false;
        int tries = 0;
        int random = (int) (Math.random() * 1000);
        int maximumAllowedAttempts = 10;
        String message = "Enter a four digit number between 0 and 9999";
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        while ((tries < maximumAllowedAttempts) && !guessedNumber){
            try{
                System.out.println(message);
                int guess = Integer.parseInt(br.readLine());
                tries++;
                int triesLeft =  maximumAllowedAttempts - tries;
                if ((guess < 0) || (guess > 9999)) {
                    System.out.println("Bad guess. " + message);
                }else if(guess < random){
                    System.out.println("Your number was too low.");
                    if (triesLeft > 1) {
                        System.out.println("You have " + String.valueOf(triesLeft) + " tries left.");
                    }else if (triesLeft == 1){
                        System.out.println("You have one more try.");
                    }else{
                        System.out.println("Sorry! You are out of tries.");
                    }
                        
                }else if(guess > random){
                    System.out.println("Your number was too high.");
                    if (triesLeft > 1) {
                        System.out.println("You have " + String.valueOf(triesLeft) + " tries left.");
                    }else if (triesLeft == 1){
                        System.out.println("You have one more try.");
                    }else{
                        System.out.println("Sorry! You are out of tries.");
                    }
                }else if(guess == random){
                    System.out.println("Your number was correct.");
                    guessedNumber = true;
                }
            }catch (NumberFormatException nfe){
                System.err.println("Bad guess. " + message);
            }catch (IOException ioe){
                System.err.println("IOException: " + ioe.getMessage());
            }
        }
    }
}