Can we perform two actions with one button with two clicks one after other?

Question

Sir,
can we perform two actions with one button with two clicks one after other?
I want that when I click an Add Button first time it add data to the database and when I click again this button it clear the form data to empty fields.
Regards
Tanvir

Answer 1

In code it should be easy.
The following code adds a button called butman with a text "ADD".
It then registers a listener that will be called if the button is clicked.
This listener then calls the runAddData method if you clicked on butman while it contained the "ADD" text and it will call the runClearData method otherwise.
Therefore it will swap the button's functionality between ADD and CLEAR on every click.
final Button butman = new Button("ADD");
butman.setOnAction(new EventHandler<ActionEvent>() {
          @Override
          public void handle(ActionEvent t) {
                    if (butman.getText().equals("ADD")) {
                              butman.setText("CLEAR");
                              runAddData();
                    } else {
                              butman.setText("ADD");
                              runClearData();
                    } // END IF-THEN
          }});I hope this is what you wanted.
Some extra food for thought.
You might want to run the ADD and CLEAR methods in their own threads so that it can run in the back ground, without slowing down your user interface.
I also like to rather reuse one button for multiple functionality in stead of making an application with hundreds of nodes only used rarely with masses of code to show and hide them if needed.