package Dijkstra;
 
//import static java.awt.geom.Point2D.distance;
import java.util.Scanner;
import java.lang.ArrayIndexOutOfBoundsException;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Formatter;
import java.util.InputMismatchException;
 
public class Traffic {
//private 
    static  void dijkstra(int[][] array, int[] distance) {
        int size = array.length;
        boolean[] visited = new boolean[size];
        for (int i = 0; i < size; i++) {
            distance[i] = Integer.MAX_VALUE;
        }
 
        Scanner value = new Scanner(System.in);
        System.out.println("Please Select your From destination::");
 
        try{
             int value1 = value.nextInt();
            distance[value1] = 0;
        }catch(InputMismatchException e){
            System.out.println("Invalid.Please try to type Integer value..");
            System.out.println(e);
        }
 
        for (int i = 0; i < size - 1; i++) {
            int mindis = minimumDistance(distance, visited);
            visited[mindis] = true;
            for (int j = 0; j < size; j++) {
                if (!visited[j] && array[mindis][j] != 0 && distance[mindis] != Integer.MAX_VALUE) {
                    int newdis = distance[mindis] + array[mindis][j];
                    if (newdis < distance[j]) {
                        distance[j] = newdis;
                    }
                }
            }
        }
 
    }
 
    public static int minimumDistance(int[] distance, boolean[] visited) {
        int minimum = -1;
        int minDistance = Integer.MAX_VALUE;
        for (int i = 0; i < distance.length; i++) {
            if (!visited[i] && distance[i] < minDistance) {
                minDistance = distance[i];
                minimum = i;
            }
        }
        return minimum;
    }
 
    public static void main(String[] args) {
 
        File dir = new File("person");
        dir.mkdir();
//        System.out.println(dir.getAbsoluteFile());
        File file1 = new File("D:/java/OOP/person/Student.txt");
 
        while (true) {
            try {
                file1.createNewFile();
                System.out.println("....................Welcome to our traffic Management System......................\n");
 
                System.out.println("1.Start the Program");
                System.out.println("2.Exit \n");
                System.out.println("Plase Choose Your Option..");
 
            } catch (IOException e) {
                System.out.println(e);
            }
 
            try {
                Scanner result = new Scanner(System.in);
                int option;
                option = result.nextInt();
                switch (option) {
                    case 1 -> {
                        try {
                            int a, b, weight;
                            int n, v;
                            int[] distance;
                            int[][] array;
                            try {
                                Formatter f1 = new Formatter("D:/java/OOP/person/Student.txt");
                                Scanner input = new Scanner(System.in);
                                System.out.println("Thank Your Sir or Ma'am for opening our Traffic management Service.\n");
                                System.out.println("Please Provide How many Location: ");
                                n = input.nextInt();
                                System.out.println("Please Provide How many Roads: ");
 
                                v = input.nextInt();
                                f1.format("%d %d \r \n", n, v);
                                distance = new int[n];
                                array = new int[n][n]; // 2D array used in Java
                                System.out.println("Please Provide your Inputs::");
                                for (int i = 0; i < v; i++) {
                                    a = input.nextInt();
                                    b = input.nextInt();
                                    weight = input.nextInt();
                                    array[a][b] = weight;
                                    array[b][a] = weight;
                                    f1.format("%d %d %d \r \n", a, b, weight);
                                }
 
                                f1.close();
 
                                Traffic.dijkstra(array, distance);
                                for (int i = 0; i < n; i++) {
                                    System.out.println(i + "  -->  " + i + "");
                                }
                                System.out.println("Please Select your To destination::");
                                int destination;
                                try{
 
                                    destination = input.nextInt();
                                    System.out.println("There are " + distance[destination] + " Cars on this road And the road is less congested..");
                                    System.out.println("You can go this Way..");
                                }catch(InputMismatchException e){
                                    System.out.println("Invalid.Please try to type Integer value..");
                                    System.out.println(e);
                                }
 
                            } catch (FileNotFoundException e) {
                                System.out.println(e);
                            }
 
                        } catch (ArrayIndexOutOfBoundsException e) {
                            System.out.println(e);
                        }
                    }
                    case 2 -> {
                        System.out.println("Thank Your our Using the service.");
                        System.out.println("Exit the program");
                        System.exit(0);
                    }
 
                    default -> System.out.println("Invalid Option.Please choose again..");
 
                }
            } catch (InputMismatchException e) {
                System.out.println("Invalid.Please try to type Integer value..");
                System.out.println("");
            }
 
        }
 
    }
 
}
 

package Dijkstra;

//import static java.awt.geom.Point2D.distance;
import java.util.Scanner;
import java.lang.ArrayIndexOutOfBoundsException;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Formatter;
import java.util.InputMismatchException;

public class Traffic {
//private 
    static  void dijkstra(int[][] array, int[] distance) {
        int size = array.length;
        boolean[] visited = new boolean[size];
        for (int i = 0; i < size; i++) {
            distance[i] = Integer.MAX_VALUE;
        }
 
        Scanner value = new Scanner(System.in);
        System.out.println("Please Select your From destination::");
       
        try{
             int value1 = value.nextInt();
            distance[value1] = 0;
        }catch(InputMismatchException e){
            System.out.println("Invalid.Please try to type Integer value..");
            System.out.println(e);
        }

        for (int i = 0; i < size - 1; i++) {
            int mindis = minimumDistance(distance, visited);
            visited[mindis] = true;
            for (int j = 0; j < size; j++) {
                if (!visited[j] && array[mindis][j] != 0 && distance[mindis] != Integer.MAX_VALUE) {
                    int newdis = distance[mindis] + array[mindis][j];
                    if (newdis < distance[j]) {
                        distance[j] = newdis;
                    }
                }
            }
        }

    }

    public static int minimumDistance(int[] distance, boolean[] visited) {
        int minimum = -1;
        int minDistance = Integer.MAX_VALUE;
        for (int i = 0; i < distance.length; i++) {
            if (!visited[i] && distance[i] < minDistance) {
                minDistance = distance[i];
                minimum = i;
            }
        }
        return minimum;
    }

    public static void main(String[] args) {

        File dir = new File("person");
        dir.mkdir();
//        System.out.println(dir.getAbsoluteFile());
        File file1 = new File("D:/java/OOP/person/Student.txt");

        while (true) {
            try {
                file1.createNewFile();
                System.out.println("....................Welcome to our traffic Management System......................\n");

                System.out.println("1.Start the Program");
                System.out.println("2.Exit \n");
                System.out.println("Plase Choose Your Option..");

            } catch (IOException e) {
                System.out.println(e);
            }

            try {
                Scanner result = new Scanner(System.in);
                int option;
                option = result.nextInt();
                switch (option) {
                    case 1 -> {
                        try {
                            int a, b, weight;
                            int n, v;
                            int[] distance;
                            int[][] array;
                            try {
                                Formatter f1 = new Formatter("D:/java/OOP/person/Student.txt");
                                Scanner input = new Scanner(System.in);
                                System.out.println("Thank Your Sir or Ma'am for opening our Traffic management Service.\n");
                                System.out.println("Please Provide How many Location: ");
                                n = input.nextInt();
                                System.out.println("Please Provide How many Roads: ");

                                v = input.nextInt();
                                f1.format("%d %d \r \n", n, v);
                                distance = new int[n];
                                array = new int[n][n]; // 2D array used in Java
                                System.out.println("Please Provide your Inputs::");
                                for (int i = 0; i < v; i++) {
                                    a = input.nextInt();
                                    b = input.nextInt();
                                    weight = input.nextInt();
                                    array[a][b] = weight;
                                    array[b][a] = weight;
                                    f1.format("%d %d %d \r \n", a, b, weight);
                                }

                                f1.close();
                               
                                Traffic.dijkstra(array, distance);
                                for (int i = 0; i < n; i++) {
                                    System.out.println(i + "  -->  " + i + "");
                                }
                                System.out.println("Please Select your To destination::");
                                int destination;
                                try{
                                    
                                    destination = input.nextInt();
                                    System.out.println("There are " + distance[destination] + " Cars on this road And the road is less congested..");
                                    System.out.println("You can go this Way..");
                                }catch(InputMismatchException e){
                                    System.out.println("Invalid.Please try to type Integer value..");
                                    System.out.println(e);
                                }
                                
                            } catch (FileNotFoundException e) {
                                System.out.println(e);
                            }

                        } catch (ArrayIndexOutOfBoundsException e) {
                            System.out.println(e);
                        }
                    }
                    case 2 -> {
                        System.out.println("Thank Your our Using the service.");
                        System.out.println("Exit the program");
                        System.exit(0);
                    }

                    default -> System.out.println("Invalid Option.Please choose again..");

                }
            } catch (InputMismatchException e) {
                System.out.println("Invalid.Please try to type Integer value..");
                System.out.println("");
            }

        }

    }

}
