Examples of java.util.Scanner.nextDouble()

java.util.Scanner.nextDouble()
Scans the next token of the input as a double. This method will throw InputMismatchException if the next token cannot be translated into a valid double value. If the translation is successful, the scanner advances past the input that matched.
If the next token matches the Float regular expression defined above then the token is converted into a double value as if by removing all locale specific prefixes, group separators, and locale specific suffixes, then mapping non-ASCII digits into ASCII digits via {@link Character#digit Character.digit}, prepending a negative sign (-) if the locale specific negative prefixes and suffixes were present, and passing the resulting string to {@link Double#parseDouble Double.parseDouble}. If the token matches the localized NaN or infinity strings, then either "Nan" or "Infinity" is passed to {@link Double#parseDouble(String) Double.parseDouble} as appropriate. @return the double scanned from the input @throws InputMismatchException if the next token does not match the Float regular expression, or is out of range @throws NoSuchElementException if the input is exhausted @throws IllegalStateException if this scanner is closed

    for (i = 0; i < S.vals; i++) {
      x = scanner.nextInt();
      S.rowind[i] = x - 1;
    }
    for (i = 0; i < S.vals; i++) {
      S.value[i] = scanner.nextDouble();
    }
    return S;
  }


}

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        for (i = 0; i < S.vals; i++) {
            x = scanner.nextInt();
            S.rowind[i] = x - 1;
        }
        for (i = 0; i < S.vals; i++) {
            S.value[i] = scanner.nextDouble();
        }
        return S;
    }


}

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            // the file.
            Scanner s = new Scanner(line);
            s.useLocale(Locale.US);
            int vals = 0;
            // Count how many columns the row has
            for (; s.hasNextDouble(); vals++, s.nextDouble())
                ;


            // Base case if the number of columns has not been set
            if (cols == -1) 
                cols = vals;

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            ? Matrices.create(cols, rows, matrixType)
            : Matrices.create(rows, cols, matrixType);
        
        for (int row = 0; row < rows; ++row) {
            for (int col = 0; col < cols; ++col) {
                double d = scanner.nextDouble();
                if (transposeOnRead)
                    m.set(col, row, d);
                else
                    m.set(row, col, d);
            }

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      Scanner sc = new Scanner(ans[i]);
      localflag=false;
      sbeps=1.e-3;
      double r;
      for (j=nl;j>=0;j--) {
        r = sc.nextDouble();
//        System.out.printf(c[j] << " %f\n", w << " %f\n", abs(c[j]-atof(w.c_str())));
        localflag = localflag || abs(c[j]-r) > sbeps;
      }
      for (j=0;j<nr;j++) {
        r = sc.nextDouble();

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        r = sc.nextDouble();
//        System.out.printf(c[j] << " %f\n", w << " %f\n", abs(c[j]-atof(w.c_str())));
        localflag = localflag || abs(c[j]-r) > sbeps;
      }
      for (j=0;j<nr;j++) {
        r = sc.nextDouble();
//        System.out.printf(c[np-1-j] << " %f\n", w << " %f\n", w.c_str());
        localflag = localflag || abs(c[np-1-j]-r) > sbeps;
      }
      globalflag = globalflag || localflag;
      if (localflag) {

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     * @throws DataReadException
     */
    public Double readDouble(BufferedReader reader) throws DataReadException {
        Scanner scanner = new Scanner(reader);
        if (scanner.hasNextDouble()) {
            return new Double(scanner.nextDouble());
        } else {
            throw new DataReadException("Reading double value error");
        }
    }

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        if (scanner.hasNextInt()) {
            int size = scanner.nextInt();
            ArrayList<Double> array = new ArrayList<Double>();
            for (int i = 0; i < size; ++i) {
                if (scanner.hasNextDouble()) {
                    array.add(new Double(scanner.nextDouble()));
                } else {
                    throw new DataReadException("Reading array of double value error");
                }
            }
            return array;

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        for (i = 0; i < S.vals; i++) {
            x = scanner.nextInt();
            S.rowind[i] = x - 1;
        }
        for (i = 0; i < S.vals; i++) {
            S.value[i] = scanner.nextDouble();
        }
        return S;
    }


}

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    i = 0;
    while (s.hasNext () && i < doubleZ.length)
      {
  if (s.hasNextDouble ())
    {
      aktDouble = s.nextDouble ();
      this.myHarness.check (aktDouble, doubleZ[i],
          "#" + i + " : bad nextDouble() (" +
          aktDouble + " != " + doubleZ[i]);
    }
  else

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