Problem with Constructor

[ToastyBainey]

Hi
I am working on an assignment for a class and it is supposed to read in a file that is a text file representing a graph and traverse it. And the teacher gave us the .class file as well as the traversal file, and I cannot get it to work with my Graph File. I get the error:

@MyProjects\GraphTraversals.java:15: cannot find symbol
symbol : constructor Graph(int,int,int)
location: class Graph
H = new Graph( G.numberOfNodes(), G.DIRECTED, G.UNWEIGHTED );
^
1 error

I thought I made the constructor, but apparently I did it wrong. I am sure there are other problems as well with the open and the openToRead methods but I can't really tell because it wont compile with that error.

It probably wont compile because I did not include the code for the BasicGraph class. But maybe it is a simple problem and if someone could help, thank you :) If needed, I will include the class file but I havent typed up the code.

import java.io.*;
import java.util.*;

public class Graph extends BasicGraph{
	private Graph G;
	private File diskFile;
	public static RandomAccessFile testFile;
	public StreamTokenizer reader;
	public PrintWriter fw;
	
	public void Graph(){
		G = new Graph();
	}
	
	public void Graph( int NumberOfNodes, int DIRECTED, int UNWEIGHTED){
		//G = new Graph();
		G.setNumberOfNodes(NumberOfNodes);
		//G.setDirected(DIRECTED);
		//G.setWeighted(UNWEIGHTED);
	}
	
	public void open(String fileName){
		diskFile = new File( fileName );	
	}
	
	public void saveAs(String newFileName) throws IOException{//saves the file as something
		try{
			File testFile = new File( G.fileName );
			
			FileReader reader = new FileReader( testFile );
			PrintWriter fw = new PrintWriter(new FileWriter(newFileName), true);
			
			int data = reader.read();
			
			while( data != 0 ){
				char c = (char) data;
				System.out.print( c );
				fw.print(c);
				data = reader.read();
			}
			
			fw.close();
			reader.close();
			
		}
		catch(IOException e){
			System.out.println("Error in saveAs: " + e.toString());
		}
	}
	
	public void openForReading(){
		try{
			if( !diskFile.exists() )
				throw new IOException( "The File " + diskFile.getName() + " does not exist\n" );
			
			testFile = new RandomAccessFile( diskFile, "r" );//makes the file testFile
			FileReader inStreamReader = new FileReader( diskFile );//streamreader
			BufferedReader r = new BufferedReader( inStreamReader );//bufferedreader
			reader = new StreamTokenizer( r );//streamtokenizer
			
		}
		catch(IOException e){
			System.out.println("Error in openForReading(): " + e.getMessage() );
		}
		
	}
	
	public void openForWriting(){
		try{
			if(!diskFile.exists() )
				throw new IOException( "The File " + diskFile.getName() + " does not exist\n");
			
			testFile = new RandomAccessFile( diskFile, "rw" );
			
			fw = new PrintWriter(new FileWriter( diskFile ), true);//makes the printwriter object
		}
		catch(IOException e){
			System.out.println("Error in openForWriting(): " + e.getMessage() );
		}		
	}
	
	public int nextInt() throws IOException{
		int data = 0;
		int nextInt = 0;
		
		while(reader.nextToken() != StreamTokenizer.TT_NUMBER){
			reader.nextToken();
		}
		
		data = (int)reader.nval;
		nextInt = data;
		
		return nextInt;
	}
	
	public double nextDouble() throws IOException{
		double data = 0.0;
		double nextDouble = 0.0;
		
		nextDouble = reader.nextToken();
		
		return nextDouble;		
	}
	
	public static void main( String[] args ) throws IOException{
		Graph H = new Graph();
	
		String userInput = "";
		Scanner input = new Scanner(System.in);
		System.out.println("Enter the name of the file to open");
		
		userInput = input.next();
		
		H.open( userInput );
		H.openForReading();
		
		System.out.println(H.nextInt());
		System.out.println(H.nextInt());
		System.out.println(H.nextInt());
		System.out.println(H.nextInt());
		
	}
}

import java.io.*;
import java.util.*;

public class GraphTraversals{

	public void depthFirstTraversal( String fileName, int s){
		//Graph G = new Graph();
		//Graph H = new Graph();
		Graph G;
		Graph H;
		
		G = new Graph();
		G.open( fileName );
		
		H = new Graph( G.numberOfNodes(), G.DIRECTED, G.UNWEIGHTED );
		
		DFT( G, H, s );
		
		H.print();
		try{
			H.saveAs( "dft.grf" );
		}
		catch(IOException e){
			System.out.println("Error in depthFirstTraversal: " + e.toString() );
		}
	}
	
	private void DFT(Graph G, Graph H, int v){
		
		G.setMark( v, G.MARKED );
		
		for( int w = G.getFirstEdge( v );
			G.isEdge( v, w );
			w = G.getNextEdge( v, w)){
			if( G.getMark( w ) != G.MARKED ){
				H.setEdge( v, w );
				DFT( G, H, w );
			}
		}
		
		
	}
	
	public void breadthFirstTraversal( String fileName, int s){
		Graph G, H;
		
		IntQueue Q;
		int v;
		
		G = new Graph();
		G.open( fileName );
		H = new Graph();// G.numberOfNodes(), G.DIRECTED, G.UNWEIGHTED );
		
		
		Q = new IntQueue();
		G.setMark( s, G.MARKED );
		Q.enqueue( s );
		
		while( ! Q.isEmpty() ){
			v = Q.dequeue();
			
			for( int w = G.getFirstEdge( v );
				G.isEdge( v, w );
				w = G.getNextEdge( v, w )){
				if( G.getMark( w ) != G.MARKED){
					G.setMark( w, G.MARKED );
					H.setEdge( v, w );
					Q.enqueue( w );
				}
			}
		}
		
		H.print();
		//H.saveAs( "bft.grf" );
	}
	
	public static void main( String[] args) {
		GraphTraversals test = new GraphTraversals();
		test.depthFirstTraversal("dijkstra.grf", 1);
	}
}

[Fubarable]

constructors don't have a return type (yours has one -- void).

[ToastyBainey]

OMG D: it compiled. Thank youu. I feel like a dork.

[Fubarable]

OMG D: it compiled. Thank youu. I feel like a dork.

Please don't be too hard on yourself. That's our job. :)