B4J Question Passing data from .csv to Scatter Chart of jChart

[Cal4th]

I am trying to pass x and y points from .csv files to plot them in the scatter chart of jChart library.
Code:

    Xc = File.ReadList(File.DirApp, "naca0015x.csv")
    Yc = File.ReadList(File.DirApp, "naca0015y.csv")
Dim Series As XYSeries
    Series.Initialize("Original Profile")
    For i = 0 To Xc.Size - 1 ' Xc and Yc are the same size
        Dim x As Double = Xc.Get(i) '(error  occurs in this line)
        Dim y As Double = Yc.Get(i)
        Series.Add(x, y)
    Next
    ScatterChart.AddSeries(Series)

The error that appears in the log is the following:

Error occurred on line: (Line indicated in the code comments) (Main)
java.lang.NumberFormatException: For input string: "1"

 

[Erel]

Your file includes the UTF8 BOM.
It is an extra character at the beginning of the text.

You can either remove it yourself with Notepad++ or skip it:

Xc = File.ReadList(File.DirApp, "naca0015x.csv")
 Yc = File.ReadList(File.DirApp, "naca0015y.csv")
Dim s As String = Xc.Get(0)
Xc.Put(0, s.Substring(1))
s = Yc.Get(0)
Yc.Put(0, s.SubString(1))

 

[Cal4th]

Thankyou!!!

I change the File fromat from UTF8 BOM to a UTF8 and it worked with Notepad++.

Thankyou a lot again.