Hansana Jayawardana

I can't edit the question. If you can delete the question I can add with more details. Thank you.

I have an ArrayList that gets data from user input (console), and after getting the values it shows a Chart created using JFreeChart. The problem I have is my LineGraph won't create.

I don't really know how to get the data from my ArrayList and put it in an XYSeries. And also I am new to JFreeChart.

This is my code,

public XYDataset printpointValues() {    XYSeries series = new XYSeries("X-Y");    for(int i = 0; i < inputInstance.pointValues.size(); i++)    {        series.add(inputInstance.pointValues.get(i).x, inputInstance.pointValues.get(i).y);    }    XYSeriesCollection dataset = new XYSeriesCollection();    dataset.addSeries(series);    return dataset; }


Input Class

public class Input {    private static int sHor, uHor, vHor;    private static int sVert, uVert;    private static int uResultant = 0;    private static double dAngle = 0;    private final static double aVert = -9.81;    public ArrayList<Point> pointValues = new ArrayList<Point>();    private String ChartTitle;    private String xAxisTitle, yAxisTitle; public void getInput()        {            //creates the scanner            Scanner scanner = new Scanner(System.in);            System.out.println("\n\n\n::Horizontal components:: \n");            //prompts the user to input the value for the horizontal component of            System.out.println("Please input value for s (horizontal, to the nearest m) : ");            setSHorValue(scanner.nextInt());            System.out.println("You can either input the value for horizontal u (initial velocty) now or input the resultant value for the velocity and the angle it has to the horizontal. Press 1 if you want to do the first option or 2 if you want to do the second.");            int iInputChoice =  scanner.nextInt();            //Option for if components are input separately            if(iInputChoice == 1)            {                System.out.println("Please input value for u (horizontal, to the nearest ms^-1) : ");                setUHorValue(scanner.nextInt());                System.out.println("\n\n\n::Vertical components:: \n");                System.out.println("Please input the value for the initial vertical displacement (to the nearest m) : ");                setSVertValue(scanner.nextInt());                System.out.println("Please input the value for u (vertical, to the nearest ms^-1) : ");                setUVertValue(scanner.nextInt());            }            if(iInputChoice == 2)            {                int iResultant;                double dAngle;                System.out.println("Please input the value for u(resultant, to the nearest ms^-1) : ");                iResultant = scanner.nextInt();                do                {                    System.out.println("Please input the value for the angle to the horizontal (less than 90 degrees) : ");                    dAngle = scanner.nextDouble();                } while(dAngle > 90);                System.out.println("\n\n\n::Vertical:: \n");                System.out.println("Please input the value for the initial vertical displacement (to the nearest m) : ");                setSVertValue(scanner.nextInt());            }          } }


Suvat Class

public class Suvat {    public Input inputInstance = new Input();        //prints the points out to the screen    public XYDataset printpointValues()    {            XYSeries series = new XYSeries("X-Y");        for(int i = 0; i<inputInstance.pointValues.size(); i++)        {            series.add(inputInstance.pointValues.get(i).x, inputInstance.pointValues.get(i).y);        }                XYSeriesCollection dataset = new XYSeriesCollection();        dataset.addSeries(series);        return dataset;    } }

It is a temporary mail generator. I am using HtmlUnit library.

Here is the code for the button. I get this using Inspect Element.

<p class="text-center" id="btnGeneraEmailTemporal"> <button class="btn btn-labeled btn-primary" id="generaEmailTemporal" type="button"> <span class="btn-label"><i class="fa fa-hand-o-right" aria-hidden="true"></i></span> Generate Temp Mail </button> </p>

So How can I click this using HtmlUnit and get the generated email address. Can you help me?

Hi Sir, Thanks for your answer sir. But the problem is htmlButton is not clicking. I don't know why. Can you help me to solve that? I really appreciate that.

Daniel Demesmaecker wrote:As I thought:
public interface Printers {    static void print(List<Node> nodes){        for(Node node : nodes) {            PrinterJob printerJob = PrinterJob.createPrinterJob();            PageLayout layout = Printer.getDefaultPrinter().createPageLayout(Paper.A4, PageOrientation.PORTRAIT,                    Printer.MarginType.HARDWARE_MINIMUM);            if (printerJob.showPrintDialog(MainApp.stage.getOwner()) && printerJob.printPage(layout, node)) {                printerJob.endJob();            }        }    } }

I think it uses commons.io, but I'm not entirely sure anymore. I takes a list of nodes and uses the default printer to print them.
But it also use Stage which is specific to javaFx, so without modification you won't be able to use it in swing.
If you need anymore explanation on the code, let me know
There's also the javax.print API

Hi, I need to click website button using Java. So I am using HtmlUnit Library. What I need is When I click the button tempmail.ninja generates a temporary email. I need to print that.

Here is my code What I have tried, But it gives me errors. I can't figure them. I am newbie to HtmlUnit. So Can anybody help me? I really appreciate that.
Thanks for your Help.

       try        {            WebClient webClient = new WebClient();            HtmlPage page = webClient.getPage("https://tempmail.ninja");                        HtmlButton htmlButton = page.getHtmlElementById("generaEmailTemporal");            htmlButton.click();                        webClient.close();                } catch(ElementNotFoundException | FailingHttpStatusCodeException | IOException ex) {            Logger.getLogger(WebTesting.class.getName()).log(Level.SEVERE, null, ex);        }