Qfyilyi

I have a problem when parsing a string to double after read from a text file. This is my .txt file:

5 2

0 1 166.47234

0 2 170.18475

0 3 174.55453

0 4 153.28670

1 2 145.12186

1 3 144.42723

1 4 170.98466

2 3 176.58110

2 4 162.99632

3 4 168.48360

In my code, the first line I read, just takes n=5 and m=2. From the second line to the end, I just use the first and the second value as index of a matrix, and the third value is a double, which I want to write in the position of the array given by the first and the second value.

When I read a line, I parse to integer the first two values, and the third one to double.

the problem I am having is that when I split the line with a space as separator (" "), I can get the first and the second value correctly, but I am getting an error with the third one when I try to convert it from String to double. Here is the code:

    static File file_ = new File("C:\Users\dlozanoe\Desktop\Personal\Universidad\2o Semestre\Tendencias en Inteligencia Artificial\Tema 3\Datos.txt");

static int n_localizaciones = 0;

static int m = 0;

static int contador = 0;

static int fila = 0;

static int columna = 0;

static double enlace = 0;

double mejorValorFuncionObjetivo;



static double matriz;

static String split;

static boolean seleccion;



public static void main(String args) throws IOException {



    LeerMatrizArchivo();



    for (int i = 0; i < n_localizaciones; i++) {

        for (int j = 0; j<n_localizaciones; j++) {

            System.out.print(matriz[i][j] + "t");

        }

        System.out.println();

    }



}



private static void LeerMatrizArchivo() throws IOException {

    BufferedReader in = new BufferedReader(new FileReader(file_));



    try {

        String line = in.readLine();

        split = line.split(" ");

        n_localizaciones = Integer.parseInt(split[0]);

        m = Integer.parseInt(split[1]);

        matriz = new double [n_localizaciones][n_localizaciones];



        line = in.readLine();

        while (line != null) {

            split = line.split(" ");

            fila = Integer.parseInt(split[0]);

            columna = Integer.parseInt(split[1]);

            double enlace = Double.parseDouble(split[2]);

            matriz[fila][columna] = enlace;

            matriz[columna][fila] = enlace;

            line = in.readLine();

        }





    } catch (FileNotFoundException ex){



    } finally {

        in.close();

    }



}

In this line:

double enlace = Double.parseDouble(split[2]);

I am getting the error "Source not found", and I cannot understand why. When I access to this position of the split, it has value inside. Also, in this same line, if I write:

double enlace = Double.parseDouble(split[1]);

instead of split[2], the program runs with no errors. I think there is something wrong in this split line, but I cannot see what.

Maybe someone can help me because I am not able to see what is wrong here..

Thank you so much.

Change this line:

double enlace = Double.parseDouble(split[2]);

to:

double enlace = Double.parseDouble(split[2].replace(".", ","));

The problem is the dot . you must change it to , because of your pc's local settings.