Can somebody anybody help me run this code plz
import java.util.Stack;
public class EdgeWeightedGraph {
private final int V;
private int E;
private Bag[] adj;
public EdgeWeightedGraph(int V) {
if (V < 0) throw new IllegalArgumentException("Number of vertices must be nonnegative");
this.V = V;
this.E = 0;
adj = (Bag[]) new Bag[V];
for (int v = 0; v < V; v++) {
adj[v] = new Bag();
}
}
public EdgeWeightedGraph(int V, int E) {
this(V);
if (E < 0) throw new IllegalArgumentException("Number of edges must be nonnegative");
for (int i = 0; i < E; i++) {
int v = (int) (Math.random() * V);
int w = (int) (Math.random() * V);
double weight = Math.round(100 * Math.random()) / 100.0;
Edge e = new Edge(v, w, weight);
addEdge(e);
}
}
public EdgeWeightedGraph(In in) {
this(in.readInt());
int E = in.readInt();
if (E < 0) throw new IllegalArgumentException("Number of edges must be nonnegative");
for (int i = 0; i < E; i++) {
int v = in.readInt();
int w = in.readInt();
double weight = in.readDouble();
Edge e = new Edge(v, w, weight);
addEdge(e);
}
}
public EdgeWeightedGraph(EdgeWeightedGraph G) {
this(G.V());
this.E = G.E();
for (int v = 0; v < G.V(); v++) {
// reverse so that adjacency list is in same order as original
Stack reverse = new Stack();
for (Edge e : G.adj[v]) {
reverse.push(e);
}
for (Edge e : reverse) {
adj[v].add(e);
}
}
}
public int V() {
return V;
}
public int E() {
return E;
}
// throw an IndexOutOfBoundsException unless 0 <= v < V
private void validateVertex(int v) {
if (v < 0 || v >= V)
throw new IndexOutOfBoundsException("vertex " + v + " is not between 0 and " + (V-1));
}
public void addEdge(Edge e) {
int v = e.either();
int w = e.other(v);
validateVertex(v);
validateVertex(w);
adj[v].add(e);
adj[w].add(e);
E++;
}
public Iterable adj(int v) {
validateVertex(v);
return adj[v];
}
public int degree(int v) {
validateVertex(v);
return adj[v].size();
}
public Iterable edges() {
Bag list = new Bag();
for (int v = 0; v < V; v++) {
int selfLoops = 0;
for (Edge e : adj(v)) {
if (e.other(v) > v) {
list.add(e);
}
// only add one copy of each self loop (self loops will be consecutive)
else if (e.other(v) == v) {
if (selfLoops % 2 == 0) list.add(e);
selfLoops++;
}
}
}
return list;
}
public String toString() {
String NEWLINE = System.getProperty("line.separator");
StringBuilder s = new StringBuilder();
s.append(V + " " + E + NEWLINE);
for (int v = 0; v < V; v++) {
s.append(v + ": ");
for (Edge e : adj[v]) {
s.append(e + " ");
}
s.append(NEWLINE);
}
return s.toString();
}
public static void main(String[] args) {
In in = new In(args[0]);
EdgeWeightedGraph G = new EdgeWeightedGraph(in);
StdOut.println(G);
}
}
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