Question

Use the example Graph.javaPreview the document class and Edge.javaPreview the document class as a starting point for this assignment, you'll need to make your own main class to create an instance of the Graph class.

For this assignment we are going to create a map of a city subway system using a Graph data structure. The Metro Station Map that you'll use for this assignment is here: Assignment 9 - Metro Station Map.PNG

Enter all the information from the Metro Station Map into your Graph following these guidelines:

1) Add the network of stations and the travel times (weights) to the graph. Your graph should be undirected, so your method that creates edges (or connections) should create them in both directions (from u to v and from v to u).

3) Using your Graph object, determine the travel time from station 6 to station 2 when taking the following path: 6,3,1,2

For part 3, DO NOT just sum up the travel times from the Map that was provided. Your code should use the graph you created and follow the path from station to station to sum up the travel times along the way.

graph.java:

import java.util.*;

class Graph

{

// An array of lists of Edge objects

LinkedList<Edge> G[];

// Parameterized constructor

public Graph(int n)

{

G = new LinkedList[n];

}

// Check if node U is connected to node V

public boolean isConnected(int u,int v)

{

}

// For node U, add a new connection to node V, with weight W

// Also add the reverse connection so our Graph is undirected

public void addEdge(int u,int v,int w)

{

}

// Override the java default toString() method so we can print

// our Graph in the format we want

@Override

public String toString()

{

}

}

}

edge.java:

// Edge object that is stored for each connection to another node

class Edge

{

int v,w;

public Edge(int v,int w)

{

this.v=v; this.w=w;

}

@Override

public String toString()

{

return "("+v+","+w+")";

}

}

Verizon LTE 7:34 PM 86% її Assignment 9-Metro Station Map Assignment 9: Graph Metro Station Map with Travel Time in Minutes 2 26 5 13 28 19 38 3 35 1 27 4 Dashboard Calendar To Do Notifications Inbox

Metro Station Map

Answer 1