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User_Details.java
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User_Details.java
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package railway_system;
//accepting user details
import java.util.*;
//import Binary_Search_Tree.Implementation.TreeNode;
import railway_system.Train_details.Node;
public class User_Details extends Train_details
{
User_Node user_head;
TreeNode root;
// class user_node to create nodes with details of all user
class User_Node
{
User_Node next;
String first_name;
String last_name;
char gender;
int age;
String quota;
String coach_type;
User_Node(String first_name,String last_name,char gender,int age,String quota,String coach_type)
{
this.first_name=first_name;
this.last_name=last_name;
this.gender=gender;
this.age=age;
this.quota=quota;
this.next=null;
this.coach_type=coach_type;
}
}
//class TreeNode to create Binary search tree and search for given PNR_NO
class TreeNode
{
TreeNode right;
TreeNode left;
long PNR_NO;
TreeNode(long PNR_NO)
{
this.PNR_NO=PNR_NO;
}
}
//function to insert nodes of binary search tree
void insert(long value)
{
root=recursiveInsert(root,value);
}
TreeNode recursiveInsert(TreeNode root,long value)
{
if(root==null)
{
root=new TreeNode(value);
return root;
}
if(value<root.PNR_NO)
{
root.left=recursiveInsert(root.left,value);
}
if(value>root.PNR_NO)
{
root.right=recursiveInsert(root.right,value);
}
return root;
}
TreeNode search(long PNR_NO)
{
return search(root,PNR_NO);
}
TreeNode search(TreeNode root,long PNR_NO)
{
if(root==null || root.PNR_NO==PNR_NO)
{
return root;
}
if(PNR_NO<root.PNR_NO)
{
return search(root.left,PNR_NO);
}
else
{
return search(root.right,PNR_NO);
}
}
//creating bst with PNR_NO of train
void make_bst(Train_details[] arr,long key)
{
User_Details obj=new User_Details();
for(int i=0;i<arr.length-1;i++)
{
obj.insert(arr[i].head.PNR_NO);
}
System.out.println();
if(null==obj.search(key))
{
System.out.println("Sorry! Such train does not exist.");
System.exit(0);
}
}
//creating bst of valid train that matches source and destination of user
void make_bst(ArrayList<Train_details> arr,long key)
{
User_Details obj=new User_Details();
for(int i=0;i<arr.size();i++)
{
obj.insert(arr.get(i).head.PNR_NO);
}
if(null==obj.search(key))
{
System.out.println("Sorry! Such train does not exist.");
System.exit(0);
}
}
//returning index of entered Train_number from valid_train
int valid_train_index(ArrayList<Train_details> arr,long PNR_no)
{
int j=0;
for(int i=0;i<arr.size();i++)
{
if(arr.get(i).head.PNR_NO==PNR_no)
{
j=i;
break;
}
}
return j;
}
//inorder traversal of bst
void inOrderTraversal(TreeNode root)
{
if(root==null)
{
return;
}
inOrderTraversal(root.left);
System.out.print(root.PNR_NO + " ");
inOrderTraversal(root.right);
}
// accepting number of tickets to be booked(max:6)
int no_of_tickets()
{
Scanner sc=new Scanner(System.in);
System.out.println("Maximum of 6 tickets can be booked.");
System.out.print("Enter number of tickets to be booked: ");
int number=sc.nextInt();
if(number>0 && number<=6)
{
return number;
}
return no_of_tickets();
}
//checking if entered PNR_NO exist in train list
void check_PNR_NO(long PNR_NO)
{
Train_details t_obj=new Train_details();
Train_details[] arr=t_obj.forward_journey();
Scanner sc=new Scanner(System.in);
boolean bool=false;
for(int i=0;i<arr.length-1;i++)
{
if(PNR_NO==arr[i].head.PNR_NO)
{
bool=true;
return;
}
}
if(bool==false)
{
System.out.println("Sorry! Such train does not exist.");
System.exit(0);//exiting system if entered PNR_NO is invalid
}
}
// accepting details of user and returning array containing details of all user
User_Details[] user_details(int no_of_tickets)
{
User_Details u_obj=new User_Details();
Scanner sc=new Scanner(System.in);
User_Details[] arr=new User_Details[no_of_tickets];
for(int i=0;i<no_of_tickets;i++)
{
arr[i]=new User_Details();
}
for(int i=0;i<no_of_tickets;i++)
{
System.out.print("Enter First name:");
String first_name=sc.next();
System.out.print("Enter Last name:");
String last_name=sc.next();
System.out.print("Enter gender M/F/O : ");
char gender=sc.next().charAt(0);
System.out.print("Enter age: ");
int age=sc.nextInt();
System.out.print("Enter Quota SC(Senior Citizen) / L(Ladies) / HC(Handicapped) / OPEN : ");
String quota=sc.next();
System.out.print("Enter your coach type 1A-AC/2A-AC/3A-AC/FC/SL/2S/GEN : ");
String coach_type=sc.next();
arr[i].insert_last(first_name, last_name, gender, age, quota,coach_type);
System.out.println();
}
return arr;
}
// converting entered gender to either M(for male),F(for female) or O(for others)
char gender(char gender)
{
char ch=Character.toUpperCase(gender);
return ch;
}
// converting entered quota to either HC,SC,L,OPEN
String quota(String quota)
{
String st=quota.toUpperCase();
return st;
}
// converting entered coach type to upper case
String coach_type(String coach_type)
{
String st=coach_type.toUpperCase();
return st;
}
// calculating ticket fare based on travel journey and quota
double ticket_fare(Node head,String source,String destination,String quota)
{
double fuel=10.0;//this is fuel price per km
Node src=head;
double begin=0.0,end=0.0;
Node dest=null;
while(src!=null)
{
if(source.compareTo(src.station_name)==0)
{
begin=src.distance;
dest=src.next;
while(dest!=null)
{
if(destination.compareTo(dest.station_name)==0)
{
end=dest.distance;
break;
}
dest=dest.next;
}
}
src=src.next;
}
double fare=(end-begin)*fuel;
if(quota.equals("HC"))//for HC(Hnadicapped),70% of original fare
{
fare=fare*0.7;
}
else if(quota.equals("SC"))//for SC(Senior Citizen),80% of original fare
{
fare=fare*0.8;
}
else if(quota.equals("L"))//for L(Ladies quota),90% of original fare
{
fare=fare*0.9;
}
else//for open,100% of original fare
{
fare=fare*1.0;
}
return fare;
}
// calculating ticket_fare based on type of coaches
double ticket_fare(User_Node user_head,double fare)
{
if(user_head.coach_type.equals("1A-AC"))// AC FIRST CLASS,rates is 2.1 times
{
fare*=2.1;
}
else if(user_head.coach_type.equals("2A-AC"))//AC two tier,rates is 1.85 times
{
fare*=1.85;
}
else if(user_head.coach_type.equals("3A-AC"))//ac three tier,rate is 1.7 times
{
fare*=1.70;
}
else if(user_head.coach_type.equals("FC"))//first class,rate is 1.22 times
{
fare*=1.22;
}
else if(user_head.coach_type.equals("SL"))//sleeper class,rate is 1.3 times
{
fare*=1.30;
}
else if(user_head.coach_type.equals("2S"))//second seater,rate is 1.1 times
{
fare*=1.1;
}
else if(user_head.coach_type.equals("GEN"))// rate is same as original fare
{
fare*=1;
}
else {fare*=1;}
return fare;
}
// function to create single node with single user_details
void insert_last(String first_name,String last_name,char gender,int age,String quota,String coach_type)
{
User_Details u_obj=new User_Details();
// double ticket_fare=u_obj.ticket_fare(head, last_name, coach_type, quota)
User_Node newnode=new User_Node(first_name,last_name,gender,age,quota,coach_type);
if(user_head==null)
{
user_head=newnode;
return;
}
User_Node current=user_head;
while(current.next!=null)
{
current=current.next;
}
current.next=newnode;
}
// displaying personal details of users
void show(User_Node user_head)
{
User_Node current=user_head;
if(user_head==null)
{
return;
}
System.out.print(current.first_name + "\t" + current.last_name + "\t" + current.gender + "\t" + current.age + "\t" + current.quota + "\t" + current.coach_type + "\t");
// System.out.println();
}
// remove spaces from string and convert it to lower case
static String lower_case(String str)
{
String st="";
for(int i=0;i<str.length();i++)
{
if(str.charAt(i)==' ')
{
continue;
}
st+=str.charAt(i);
}
st=st.toLowerCase();
return st;
}
// generating a captcha
void get_captcha()
{
Scanner sc=new Scanner(System.in);
int num=(int)Math.floor(Math.random()*900.0)+100;
String st="";
int b=0,c=0;
while(num>0)
{
c=num%10;
b=(int)(26*Math.random())+1;
st+=Integer.toString(c)+(Character.toString(b+'A'));
num/=10;
}
System.out.println("Captcha: " + st);
System.out.print("Enter the above Captcha: ");
String str=sc.nextLine();
boolean bool=check_captcha(str,st);
if(bool==true)
{
return;
}
get_captcha();
}
// checking whether entered captcha is true or not
boolean check_captcha(String str,String captcha)
{
boolean check=false;
if(captcha.compareTo(str)==0)
{
check=true;
}
return check;
}
// checking if source and destination are availabe and returning arraylist of trains that are availabe
ArrayList<Train_details> check_source_destination(String source,String destination)
{
ArrayList<Train_details> arr=new ArrayList<>();
Train_details[] train=forward_journey();
boolean bool=false;
for(int i=0;i<train.length;i++)
{
Node src=train[i].head;
Node dest=null;
while(src!=null)
{
if(source.compareTo(src.station_name)==0)
{
dest=src.next;
while(dest!=null)
{
if(destination.compareTo(dest.station_name)==0)
{
arr.add(train[i]);
bool=true;
break;
}
dest=dest.next;
}
}
src=src.next;
}
}
if(bool==false)
{
System.out.println("Sorry! Train could not be found");
System.exit(0);
}
return arr;
}
// printing all trains with valid source and destination
void valid_trains(ArrayList<Train_details> arr)
{
User_Details u_obj=new User_Details();
for(int i=0;i<arr.size();i++)
{
System.out.print(arr.get(i).head.PNR_NO + "\t");
u_obj.show(arr.get(i).head);
System.out.println();
}
}
//checking valid PNR_NO
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
User_Details u_obj=new User_Details();
Train_details t_obj=new Train_details();
// System.out.println("Enter the station from which u want to board the train:");
// String src=sc.nextLine();
// String source=lower_case(src);
// System.out.println("Enter the destination:");
// String dest=sc.nextLine();
// String destination=lower_case(dest);
// ArrayList<Train_details> arr=u_obj.check_source_destination(source, destination);
// for(int i=0;i<arr.size();i++)
// {
// u_obj.show(arr.get(i).head);
// System.out.println();
// }
// u_obj.valid_trains(arr);
// String st=obj.get_captcha();
// System.out.println(st);
// System.out.println("enter");
// String str=sc.nextLine();
// if(obj.check_captcha(str,st))
// {
// System.out.println(true);
// }
// else
// {
// System.out.println(false);
// }
// obj1.forward_journey();
// User_Details[] a=new User_Details[2];
// for(int i=0;i<2;i++)
// {
// a[i]=new User_Details();
// }
// for(int i=0;i<2;i++)
// {
// System.out.println("Enter First name:");
// String first_name=sc.next();
// System.out.println("Enter Last name:");
// String last_name=sc.next();
// System.out.println("Enter gender: ");
// char gender=sc.next().charAt(0);
// System.out.println("Enter age: ");
// int age=sc.nextInt();
// System.out.println("Enter Quota: ");
// String quota=sc.next();
// a[i].insert_last(first_name, last_name, gender, age, quota);
// }
// System.out.println(a.length);
// User_Details[] arr=u_obj.user_details(2);
// for(int i=0;i<2;i++)
// {
// u_obj.show(arr[i].user_head);
// }
// ArrayList<Train_details> arr=u_obj.check_source_destination("mumbaicentral","surat");
// u_obj.valid_trains(arr);
// u_obj.show(arr.get(0).head);
//// double t_fare=u_obj.ticket_fare("2A-AC", u_obj.ticket_fare(arr.get(1).head, "mumbaicentral", "surat", "OBC"));
//// System.out.println(fare);
// System.out.println("abc");
// System.out.println("ahdshdbf");
// User_Details[] arr1=u_obj.user_details(2);
// for(int i=0;i<2;i++)
// {
// u_obj.show(arr1[i].user_head);
// double fare=u_obj.ticket_fare(arr.get(1).head, "mumbaicentral", "surat", arr1[i].user_head.quota);
// double t_fare=u_obj.ticket_fare(arr1[i].user_head, fare);
// System.out.println(t_fare);
//
// }
// u_obj.no_of_tickets();
// String st=u_obj.coach_type("1a-ac");
// System.out.println(st);
Train_details[] arr=t_obj.forward_journey();
u_obj.make_bst(arr,120090);
ArrayList<Train_details> arr1=u_obj.check_source_destination("mumbaicentral", "surat");
u_obj.make_bst(arr1,12009);
//if(null!=u_obj)
}
}