import com.rinearn.graph3d.RinearnGraph3D; import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; public class Sample1 { public static void main(String[] args) { // Launches the graph RinearnGraph3D graph = new RinearnGraph3D(); try { // Plots data stored in a file graph.openDataFile(new File("SampleDataFile1.txt")); // Exception handling } catch (FileNotFoundException fnfe) { System.err.println("The file is not found"); } catch (IOException ioe) { System.err.println("The file can not be opened"); } } }