Question

In my J2ME application, I got data from .csv file and display all data from file on device. But according to my requirement, I want to display only single cell data on device.So,how can I fetch single cell record from .csv file and display it on device?

“Update After Comment“

InputStream is = getClass().getResourceAsStream("/" + "csvsample.csv");

StringBuffer sb = new StringBuffer();

 try {

int chars;

 while ((chars = is.read()) != -1) {

 sb.append((char) chars);

 return sb.toString();

 } catch (Exception e) {

System.out.println("Exception Occurance::" + e);

}

return sb.toString();

}

Answer 1

First you must read one line at a time. For this you can use below method:

private boolean readLine (InputStream is, StringBuffer line) throws IOException {
    int c = in.read();

    while (c != -1 && c != '\n') {
        line.append((char) c);
        c = in.read();
    }

    return line.length() > 0;
}

Then you need to split the line content based on , separator, for example, like at this other question How do I split strings in J2ME?.

while (readLine(is, sb)) {
  String line = sb.toString();
  // split line content

  sb.setLength(0);
}