JavaFX 8 Tutorial 41 - Validate and Clear CheckBox



The code written in the tutorial is:

checkBox1.requestFocus();
checkBox2.requestFocus();
checkBox3.requestFocus();

private boolean validateFields(){
     
        if(!(checkBox1.isSelected() | checkBox2.isSelected() | checkBox3.isSelected())){
           
                Alert alert = new Alert(AlertType.WARNING);
                alert.setTitle("Validate Fields");
                alert.setHeaderText(null);
                alert.setContentText("Please Selct One of The Hobby ");
                alert.showAndWait();
               
                return false;
        }
       
        return true;
    }

public void clearFields(){
         
        checkBox1.setSelected(false);
        checkBox2.setSelected(false);
        checkBox3.setSelected(false);
        checkBoxList.clear();
    }

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