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import java.io.*;import java.util.*;public class Path {	public static void main(String args[]) {		int from = 0;		int to = 0;		if(args.length > 1) {			from = Integer.parseInt(args[0]);			to = Integer.parseInt(args[1]);					}		try {			ListGraph graph = createGraph("Distances.txt");			findShortestWay(from, to);		} catch(IOException e) {			System.err.println("Warning! Exception: "+e.toString());		}	}		private static ListGraph createGraph(String filename) throws IOException {		 ListGraph graph = null;		 Scanner in = new Scanner(new File(filename));		 		 String tmp;		 while(in.hasNext()) {			 tmp = in.nextLine();			 if(tmp.length() > 0) {			 	String[] data = tmp.split(" +");			 			 	System.out.println(Arrays.toString(data));			 	if(isInt(data[0]) && graph == null) {			 		graph = new ListGraph(Integer.parseInt(data[0]));			 	} else if(isInt(data[0]) && isInt(data[1]) && isInt(data[2])) {			 		graph.addEdge(Integer.parseInt(data[0]), Integer.parseInt(data[0]), Integer.parseInt(data[0]));			 	}			 }		 }		 return graph;	}		private static boolean isInt(String word) throws IOException {		char[] wordChars = word.toCharArray();;		for(int i=0; i<wordChars.length; i++) {			if(!Character.isDigit(wordChars[i])) {				return false;			}		}		return true;	}		private static void findShortestWay(int from, int to) {			}}