Data input

Question

Please if somebody knows how JAVA reads a formatted data file produced by a FORTRAN code. Suppose the data has three columns (any rows), and the format is 3F15.6
Regards.
Joshua

Answer 1

I cant quite remember what 3F15.6 means (thankfully). If the numbers always have a space between then you can do something like this:
try {
BufferedReader br = .... // need to set this to something
while ((str = readLine()) != null) {
  StringTokenizer st = new StringTokenizer (str, " ");  while (st.hasMoreTokens()) {
     String ss = st.nextToken();
      float fVal = Float.parseFloat(ss);  // now you can do whatever with the float
} catch (Exception e) { // whatever }if 3F15.6 means that the floats can touch without a white space, then you could try this:
try {
BufferedReader br = .... // need to set this to something
while ((str = readLine()) != null) {
  while (str.length() > 0) {
    String ss = str.substring(0,15);
    float fVal = Float.parseFloat(ss);  // now you can do whatever with the float
    str = str.substring(15);
} catch (Exception e) {// whatever }Dont expect this code to compile, but it should help you find your way.