void doExeCommand() { JViewport viewport = scrollPane.getViewport(); String strContent = new String(); PSlider slider; int i; File fp = new File(dataFile); RandomAccessFile access = null; Runtime program = Runtime.getRuntime(); String cmdTrigger = "trigger"; boolean delete = fp.delete(); try { fp.createNewFile(); } catch (IOException ie) { System.err.println("Couldn't create the new file " + ie); // System.exit(-1);; } try { access = new RandomAccessFile(fp, "rw"); } catch (IOException ie) { System.err.println("Error in accessing the file " + ie); // System.exit(-1);; } for (i = 0; i < COMPONENTS; i++) { slider = (PSlider) vSlider.elementAt(i); /* Modified on March 20th to satisfy advisors' new request */ if (slider.isString == true) strContent = strContent + slider.getRealStringValue() + " "; else strContent = strContent + slider.getValue() + " "; } // Get value of the radio button group if (firstBox.isSelected() == true) strContent = strContent + "1"; else strContent = strContent + "0"; try { access.writeBytes(strContent); access.close(); } catch (IOException ie) { System.err.println("Error in writing to file " + ie); // System.exit(-1);; } // Trigger the OpenGL program to update with new values try { Process pid = program.exec(cmdTrigger); } catch (IOException ie) { System.err.println("Couldn't run " + ie); // System.exit(-1);; } doSourceFileUpdate(); }