import java.io.*;
import java.util.*;
import java.util.concurrent.Semaphore;

public class ProducerConsumer {

static Producer p;
static Consumer c;

public static void main(String[] args) {

   p = new Producer();
   p.start();

   c = new Consumer();
   c.start();

}

}

class Producer extends Thread {

private String file;

public String getFile() {
   return file;
}

@SuppressWarnings("deprecation")
public void run() {
   Scanner s = new Scanner(System.in);
   System.out.print("Enter filename:");
   file = s.nextLine();

   String blank = "";
   for (int i = 0; i < 73; i++) {
         blank += " ";
   }

   if (!(new File(file)).exists()) {
         try {
            FileWriter fw = new FileWriter(file);
            for (int i = 0; i < 20; i++) {
               fw.write(blank + "\n");
            }
            fw.close();
         } catch (IOException e) {
            e.printStackTrace();
         }
   }

   System.out.println("Menu:");
   System.out.println("\tnew");
   System.out.println("\tend");

   while (true) {
         System.out.print("Menu Choice: ");
         String input = s.nextLine().toLowerCase();

         if (input.charAt(0) == 'n') {
            System.out.print("Enter ID: ");
            String id;
            while (true) {
               id = s.nextLine();
               try {
                     int idInt = Integer.parseInt(id);
                     if (idInt >= 1 && idInt <= 20)
                        break;
                     else
                        System.out.println("Error: Please enter value from 1 to 20.");
               } catch (NumberFormatException e) {
                     System.out.println("Error: Please enter integer.");
               }
            }
            if (id.length() > 5) {
               id = id.substring(0,5);
            } else {
               while (id.length() < 5) {
                     id = id + " ";
               }
            }
            System.out.print("Enter name: ");
            String name = s.nextLine();
            if (name.length() > 26) {
               name = name.substring(0,26);
            } else {
               while (name.length() < 26) {
                     name = name + " ";
               }
            }
            System.out.print("Enter team: ");
            String team = s.nextLine();
            if (team.length() > 26) {
               team = team.substring(0,26);
            } else {
               while (team.length() < 26) {
                     team = team + " ";
               }
            }
            System.out.print("Enter skill level: ");
            String skillLevel;
            while (true) {
               skillLevel = s.nextLine();
               try {
                     int skillLevelInt = Integer.parseInt(skillLevel);
                     if (skillLevelInt >= 1 && skillLevelInt <= 99)
                        break;
                     else
                        System.out.println("Error: Please enter value from 1 to 99.");
               } catch (NumberFormatException e) {
                     System.out.println("Error: Please enter integer.");
               }
            }
            if (skillLevel.length() > 5) {
               skillLevel = skillLevel.substring(0,5);
            } else {
               while (skillLevel.length() < 5) {
                     skillLevel = skillLevel + " ";
               }
            }
            System.out.print("Enter date: ");
            String date = s.nextLine

Write a JAVA class Passw0rd (Note that class name has a zero instea...