How to create Cryptocurancy App using java

Hello dear steemit friends,

today i am going to show you how to create small java application for coin market. first you need to small things.

1.small java knowledge
2.java development kit ( JDK ) you can download
3.IDE ( i am using netbeans )
4.small brain
5.1 laptop
6.2 hand
7.jsoup library

ok guys, now we are ready for do that.

install netbeans ide and after

file >> New project >> Java >> Java application >> project name and path >> finish

fisrt you need to design this user interface using netbeans ide or another ide.

THIS IS VERY IMPORTENT : add jsoup libry to you project. google " how to add libry to netbeans project"

and we are going to code our application. no no it is not complicated. too easy .

double click "start market button" or right click Event >> action >> action performed
then code like this.

      javax.swing.Timer t;
    t = new javax.swing.Timer(1000, new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {

            Document doc;
            try {

                String y=a.getText();
               
                // need http protocol
                doc = Jsoup.connect("https://coinmarketcap.com/currencies/digibyte/").get();

                Elements divTag = doc.getElementsByClass("text-gray");

                System.out.println(divTag.text());

                String x = divTag.text().toString();
                String fi = "";
                for (int i = 0; i < 11; i++) {

                    char c = x.charAt(i);
                    fi = fi + c;
                }
                System.out.println(fi);

                ta.setText(fi);
                
              
                
                if (ta.getText().equals(a.getText())) {
                    System.out.println("yes");
                    Toolkit.getDefaultToolkit().beep();
                    
                }

            } catch (java.net.UnknownHostException rt) {

               
                JOptionPane.showMessageDialog(createRootPane(),"not a internet connection");
                 System.exit(0);
            } catch (IOException d) {
            }

        }
    });
    t.start();








  thats it. now you can run your java application. and click start market button its will gave values.

    ohhh its working.....


    ![Screenshot_3.png](https://steemitimages.com/DQmcmJQsYU4sN9ZigjQRF8HDVHD1UU5wdvzZbfdgVdbswru/Screenshot_3.png)
 

now i can do small explain in code. look at this line.

" doc = Jsoup.connect("https://coinmarketcap.com/currencies/digibyte/").get();"

 you can change this link to other currancy. like this.

" doc = Jsoup.connect("https://coinmarketcap.com/currencies/dash/").get();"

 i think you are enjoying this article.  i hope to another  tutorial for   crypto application.
you can develop this application. this is too small.
hope you learn something.

Good Luck!

How to create Cryptocurancy App using javasteemCreated with Sketch.

How to create Cryptocurancy App using java