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

public class IO {

	public double[][] readData() {
	
		File f = new File("coordinates.txt");
		
		FileReader fr = null;

		try {

			fr = new FileReader (f);

		} catch (FileNotFoundException fnfe) {
			fnfe.printStackTrace();
		}

		
		BufferedReader br = new BufferedReader(fr);


		int lines = -1;
		String textIn = "";
		String[] file = null;
		
		try {
			
			while (textIn != null) {
				textIn = br.readLine();
				lines++;
			}

			file = new String[lines];
		
			br.close();
			try {

				fr = new FileReader (f);

			} catch (FileNotFoundException fnfe) {
				fnfe.printStackTrace();
			}
			br = new BufferedReader(fr);
		

			for (int i = 0; i < lines; i++) {
				file[i] = br.readLine();
			}
		
			br.close();
		} catch (IOException ioe) {
			ioe.printStackTrace();
		}
		
		
		double[][] data = new double [lines][];

		for (int i = 0; i < lines; i++) {
			StringTokenizer st = new StringTokenizer(file[i],",");
			data[i] = new double[st.countTokens()];
			int j = 0;
			while (st.hasMoreTokens()) { 		
				data[i][j] = Double.parseDouble(st.nextToken()); 
				j++;
			}
		} 

		return data;
		
		
	}
	
	
	
	
	
}