Automatically read a file - easy - graph

Question

This should be a really easy question, but I just cant seem to get it done, I have a section of code calculating X Y points on a graph, then saving them to file.
If a certain condition is met I want to plot the values on a graph, I am using this code to plot the graph- http://www.kodejava.org/examples/805.html
But I don't want it to ask for the user to point to the file location, I just want it to open a file which has a directory hard coded in, and plot it automatically. So basically remove the buttons at the top and carry out the commands of the buttons automatically.
Would be fantastic if somebody could point me in the right direction, I'm a physicist not a coding expert so as much help as possible would be excellent.
Hope I can help one of you in return sometime.

Answer 1

1) Inside public static void main, just above frame.setVisible(true); insert openButton.setVisible(false);
2) Inside class GraphPanel, inside the method public void actionPerformed(ActionEvent e) insert datapanel.actionPerformed(e); as the first line.
3) Inside class DataPanel inside public void actionPerformed comment out from the beginning JFrame fileFrame = new JFrame(); to initialized = readFile(datafile);
4) Just after the comment, insert initialized = readFile(new File("path_to_data_file"));
Now if you open, and press plot, the hard coded file will be read and plot will be drawn.
Heck,, I don't care if this gets downvoted :). I've never touched Java. After reading your problem, specially I'm a physicist not a coding expert first i searched in google how to compile and run a java file. Then started reading the java program. I even made another version which does not need the button press also, Just open and your graph will be drawn. But that's only if needed, then provided. "Welcome to my java attempt" :)
Update:
For doing without pressing plot, in GraphPanel and DataPanel, and rename the actionPerformed methods to something else like GraphPanel::start_working and DataPanel::start_working Now inside GraphPanel::start_working call DataPanel::start_working instead of earlier datapanel.actionPerformed(e); . If compiler cribs, add some empty actionPerformed for compilation. (perhaps we can remove the implements ) Now your flow is ready without any user action. you just need to start it. So you set plotButton.setVisible(false); to hide the plot button and call graphpanel.start_work(); to start the flow in main.
Update:
Inside GraphPanel
public void start_working() {
datapanel.start_working()
if (!datapanel.isInitialized()) {
return;
}
datapanel.refreshData();
panel.setDisplayPlot(true);
panel.update(panel.getGraphics());
frame.setSize(700, 600);
frame.setVisible(true);
frame.pack();
}
And inside DataPanel
public void start_working(ActionEvent e) {
initialized = readFile(new File("PATH_TO_FILE");
panel.update(panel.getGraphics());
frame.pack();
frame.setVisible(true);
}
in main last 5 lines
openButton.setVisible(false);
plotButton.setVisible(false);
graphpanel.start_working();
frame.setVisible(true);
frame.pack();