import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
public class Main {
static Scanner input = new Scanner(System.in);
static String enter;
static Train Train = new Train();
static List Trains = Train.getTrains();
static Customers Customers = new Customers();
public static void main(String[] args) {
List Train1Stations = Arrays.asList("1.Tiruppur","2.Erode","3.Salem","4.Jolarpettai","5.Katpadi","6.Arakkonam","7.Avadi","8.Chennai CTL");
List Train2Stations = Arrays.asList("1.Tiruppur","2.Erode","3.Karur","4.Dindigul","5.Madurai");
Train.setTrains("Chennai Exp","Tiruppur to Chennai", 8, Train1Stations );
Train.setTrains("Madurai Exp","Tiruppur to Madurai", 10, Train2Stations );
Customers.setUser("Keshav", 1234);
boolean Mainloop = true;
while(Mainloop){
clrscr();
System.out.println();
System.out.println("Welcome To Railway Ticket Booking App ===\n-----------------------\n1.Admin\n2.Customer\n3.Exit\n-----------------------");
int MainInput = input.nextInt();
switch(MainInput){
case 1:
clrscr();
System.out.print("Enter UserName : ");String AdminUserName = input.next();
System.out.print("Enter Pin : ");int AdminPin = input.nextInt();
if(AdminUserName.equals("Keshav") && AdminPin==1234){
boolean Adminloop = true;
while(Adminloop){
clrscr();
System.out.println("Welcome Admin :)\n\nChoose any options\n----------------\n1.View Trains\n2.Add Trains\n3.Logout\n----------------\n");
int AdminInput = input.nextInt();
switch(AdminInput){
case 1:
clrscr();
ViewTrains();
break;
case 2:
AddTrains();
break;
case 3:
clrscr();
System.out.println("------Logout------\n\nEnter 1 to Confirm\n");
enter = input.next();
Adminloop=false;
break;
default:
clrscr();
System.out.println("Invalid Input\n\nTry Again \n\nEnter 1 to Continue\n");
enter = input.next();
break;
}
}
}else{
System.out.println("Invalid User Name or Pin");
System.out.println("Logout\n\nEnter 1 to Continue");
enter = input.next();
}
break;
case 2:
clrscr();
boolean Authloop = true;
while(Authloop){
clrscr();
System.out.println("Choose any options\n----------------\n1.Already Have An Account\n2.Create An Account\n3.Back\n----------------\n");
int AuthInput = input.nextInt();
switch(AuthInput){
case 1:
clrscr();
System.out.print("Enter User Name : ");String UserName = input.next();
System.out.print("Enter Pin : ");int Pin = input.nextInt();
if(Customers.AuthUser(UserName, Pin)){
clrscr();
boolean Customerloop = true;
while(Customerloop){
clrscr();
System.out.println("Welcome "+UserName+" :)\n\nChoose any options\n----------------\n1.Book Tickets\n2.View Tickets\n3.Logout\n----------------\n");
int CustomerInput = input.nextInt();
switch(CustomerInput){
case 1:
clrscr();
BookTickets(UserName);
break;
case 2:
clrscr();
TicketHistory(UserName);
break;
case 3:
Customerloop = false;
Authloop =false;
break;
}
}
}else{
System.out.println("\nInvalid User Name or Pin");
System.out.println("\n\nEnter 1 to Continue\n");
enter = input.next();
}
break;
case 2:
clrscr();
System.out.print("Enter New User Name : ");String NewUserName = input.next();
System.out.print("Enter New Pin : ");int NewPin = input.nextInt();
Customers.setUser(NewUserName, NewPin);
System.out.println("Account Created Succesfully.");
System.out.println("\n\nEnter 1 to Continue\n");
enter = input.next();
break;
case 3:
Authloop = false;
break;
}
}
break;
case 3:
clrscr();
System.out.println("Logout\n\nEnter 1 to Exit");
enter = input.next();
Mainloop = false;
break;
default:
clrscr();
System.out.println("Invalid Input Try Again\n\nEnter 1 to exit");
enter = input.next();
break;
}
}
}
public static void ViewTrains(){
clrscr();
for(int i=0 ; i<Trains.size() ; i++){
List Train = (List)Trains.get(i);
List TrainDetails = (List)Train.get(0);
List BookedSeats = (List)Train.get(1);
for(int j=0 ; j<TrainDetails.size();j++){
if(j==3){
List Stations = (List)TrainDetails.get(3);
System.out.println("Stations :");
for(int k=0 ; k<Stations.size();k++){
System.out.println(Stations.get(k));
}
}else if(j==2){
System.out.println("NoOfSeats : "+TrainDetails.get(2));
}else if(j==1){
System.out.println("Route : "+TrainDetails.get(1));
}else if(j==0){
System.out.println("Name : "+TrainDetails.get(0));
}
}
System.out.println("\nSeats Booked :\n");
for(int j =0;j<BookedSeats.size();j++){
System.out.println(BookedSeats.get(j)+"\n");
}
System.out.println("----------------");
}
System.out.println("\n\nEnter 1 to exit");
enter = input.next();
}
public static void AddTrains(){
clrscr();
System.out.print("Enter Train Name : ");String TrainName = input.next();
clrscr();
System.out.println("Enter Train Route\n");
System.out.print("Start : ");String Start = input.next();
System.out.print("End : ");String End = input.next();
clrscr();
System.out.print("Enter No Of Seats : ");int NoOfSeats = input.nextInt();
clrscr();
System.out.print("Enter No of Stations :");int NoOfStations = input.nextInt();
List<String> Stations = new ArrayList<>();
for(int i =0;i<NoOfStations;i++){
System.out.print((i+1)+".");String Station = input.next();
Stations.add(i, (i+1)+"."+Station);
}
Train.setTrains(TrainName,Start+" to "+End,NoOfSeats, Stations );
System.out.println("Train Added Sucessfully \n\nEnter 1 to exit");
enter = input.next();
}
public static void BookTickets(String UserName){
clrscr();
System.out.println("Choose the Train : \n----------------");
for(int i=0 ; i<Trains.size() ; i++){
List TrainTemp = (List)Trains.get(i);
List TrainDetails = (List)TrainTemp.get(0);
System.out.println(i+1+"."+TrainDetails.get(0));
}
System.out.println("\n----------------");
int TrainNo = input.nextInt()-1;
clrscr();
List TrainTemp = (List)Trains.get(TrainNo);
List TrainDetails = (List)TrainTemp.get(0);
List Stations = (List)TrainDetails.get(3);
System.out.println("Choose Start & End Stations :");
for(int k=0 ; k<Stations.size();k++){
System.out.println(Stations.get(k));
}
System.out.print("Start Station No : ");int Start = input.nextInt()-1;
System.out.print("End Station No : ");int End = input.nextInt();
clrscr();
System.out.print("\nEnter No Of Ticket : ");int NoOfTicket = input.nextInt();
int[] SeatNo = new int[NoOfTicket];
for(int k=0;k<NoOfTicket;k++){
List Seats = (List)TrainTemp.get(1);
for(int i = 0 ;i<(Integer)TrainDetails.get(2);i++){
int TicketConfirm =0;
for(int j=Start;j<End;j++){
List S = (List)Seats.get(j);
if((Integer)S.get(i)==0){
TicketConfirm+=1;
}
}
if(Start==0){
if(TicketConfirm==Start+End){
SeatNo[k] = i+1;
for(int j=Start;j<End;j++){
List S = (List)Seats.get(j);
S.set(i, 1);
Seats.set(i, S);
}
i = (Integer)TrainDetails.get(2);
}
}else{
if(TicketConfirm==End-Start){
SeatNo[k] = i+1;
for(int j=Start;j<End;j++){
List S = (List)Seats.get(j);
S.set(i, 1);
Seats.set(i, S);
}
i = (Integer)TrainDetails.get(2);
}
}
}
}
int Tickets = 0;
for(int k=0 ;k<NoOfTicket;k++){
if(SeatNo[k]!=0){
Tickets+=1;
}
}
if(Tickets==NoOfTicket){
for(int k=0 ;k<NoOfTicket;k++){
Train.setBookedSeats(TrainNo,Start,End,SeatNo[k]);
Customers.setTicketHistory(UserName, (String)TrainDetails.get(0), Stations.get(Start)+" to "+Stations.get(End-1),SeatNo[k]);
}
System.out.println("\nTicket booked :)\n");
System.out.print("seat No : ");
for(int i=0; i<SeatNo.length;i++){
System.out.print(" "+SeatNo[i]);
}
System.out.println("\n\nEnter 1 to Continue\n");
enter = input.next();
}else{
System.out.println("Tickets Not Avilable ):");
System.out.println("\n\nEnter 1 to Continue\n");
enter = input.next();
}
}
public static void TicketHistory(String UserName){
List TicketHistory = Customers.getTicketHistory(UserName);
System.out.println("Booked Tickets");
for(int i =0 ; i<TicketHistory.size();i++){
List Ticket = (List)TicketHistory.get(i);
System.out.println("----------------\n");
for(int j=0;j<Ticket.size();j++){
if(j==0){
System.out.println("Train Name : " +Ticket.get(0));
}else if(j==1){
System.out.println("Start & End : " +Ticket.get(1));
}else if(j==2){
System.out.println("Seat No : " +Ticket.get(2));
}
}
}
System.out.println("\n\nEnter 1 to Continue\n");
enter = input.next();
}
public static void clrscr(){
System.out.print("\033[H\033[2J");
System.out.flush();
}
}
class Train{
private static List<List> Trains = new ArrayList<List>();
public void setTrains(String TrainName ,String Route, int NoOfSeats , List Stations ){
List TrainDetails = Arrays.asList(TrainName,Route,NoOfSeats,Stations);
List<List<Integer>> Seats = new ArrayList<>();
for(int i=0; i<Stations.size();i++){
List<Integer> seat = new ArrayList<>();
for(int j = 0; j<NoOfSeats;j++){
seat.add(0);
}
Seats.add(seat);
}
List<List> Train = Arrays.asList(TrainDetails,Seats);
Trains.add(Train);
}
public List getTrains(){
return Trains;
}
public void setBookedSeats(int TrainNo ,int StartStation, int EndStation,int SeatNo){
List Train = (List)Trains.get(TrainNo);
List Seats = (List)Train.get(1);
for(int j=StartStation;j<EndStation;j++){
List S = (List)Seats.get(j);
S.set(SeatNo-1, 1 );
Seats.set(j, S);
}
Train.set(1, Seats);
Trains.set(TrainNo, Train);
}
}
class Customers{
private static List<List> Users = new ArrayList<List>();
public void setUser(String UserName , int Pin){
List TicketHistory =new ArrayList<>();
List User = Arrays.asList(UserName,Pin , TicketHistory);
Users.add(User);
}
public void setTicketHistory(String UserName,String TrainName ,String StartEnd,int SeatNo){
List Ticket = Arrays.asList(TrainName,StartEnd,SeatNo);
for(int i=0;i<Users.size();i++){
List User = Users.get(i);
if(UserName.equals((String)User.get(0))){
List TicketHistory = (List)User.get(2);
TicketHistory.add(Ticket);
User.set(2, TicketHistory);
Users.set(i, User);
}
}
}
public List getTicketHistory(String UserName){
List Ticket = Arrays.asList(0,0,0);
for(int i=0;i<Users.size();i++){
List User = Users.get(i);
if(UserName.equals((String)User.get(0))){
List TicketHistory = (List)User.get(2);
return TicketHistory;
}
}
return Ticket;
}
public boolean AuthUser(String UserName , int Pin){
boolean Auth = false;
for(int i=0;i<Users.size();i++){
List User = Users.get(i);
if(UserName.equals((String)User.get(0)) && Pin==(Integer)User.get(1)){
Auth = true;
}
}
return Auth;
}
}
