Parse files and store to "timeseries" for ouput to jpg/png?

Question

Hi.
I am trying to parse through some dirs for known files and store the content + name of dir in a "timeseries" (the contents are csv and name of dir is string - hence "timeseries"), for later output to PNG.
The file structure will be:
dir1/filename.csv (together with other files)
dir2/filename.csv (together with other files)
dir3/filename.csv (together with other files)
My idea so far is:
public main {
   JFreeChart ... createChart(createDataset);
private static createDataset {
    traverse("my dirs and files");
    TimeSeries series1 = new TimeSeries(name of dir1, data from file1);
    TimeSeries series2 = new TimeSeries(name of dir2, data from file2);
     etc....
private static createChart {
private static traverse(File dir) {
     this method scans the dirs;
     if file = "filename.csv" readFile();
private static readFile(file, path) {
     read the data;
}I have come to a stop, because my method/idea would only return timeseries for the first dir/file over and over again.
Maybe I'm doing this awkwardly, but I'm very fresh at java.
Any inspiration would be appreciated.
Cheers,
Chotor

Answer 1

Thanks for answering.
Maybe I should clearify a bit.
I am already able to read csv files (thanks to opencsv). I can also travese directories looking for the correct file. I can even output timeseries to png thanks to JFreeChart.
The problem is stiching it all togheter, and more precisely passing data between methods.
When creating timeseries within my ceateDataset method, I am calling traverse, which then calls readData. I want these two (dir-name from traverse() and actual data from readData()) to be read into a new timeseries.
Maybe this could be solved differently...
We haven't covered this topic in my course yet. I'm fresh but eager. :)