Fill a text with JLabel entered by user - events

Question

I am making a project that fill a text with information entered previously by a user.
For that, I am using the library JFrame.
So I have the form in the left of the panel and I want to put the filled text in the right when I click on the submit button.
My problem is that I don't undertand how to put the information in the right place of the text.
And for the moment the text doesn't appear at all in the frame on the click of the submit.
Can someone help me ?
Thanks a lot !
Here is my complete code :
public class LemurienAgileForm extends MainApplication {
public LemurienAgileForm(){
leLemurienAgileWindow();
}
public static void leLemurienAgileWindow() {
JFrame f = new JFrame("Le lémurien agile");
//set size of frame
f.setSize(1200, 1000);
f.setBackground(Color.black);
//make sure it quits when x is clicked
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JLabel labelNameFP = new JLabel("Nom (f.pl) : ");
labelNameFP.setBounds(50, 50, 200, 30);
JTextField nameFP = new JTextField();
//set size of the text box
nameFP.setBounds(165, 50, 200, 30);
JLabel labelAdjectiveFP = new JLabel("Adj. (f.pl) : ");
labelAdjectiveFP.setBounds(50, 100, 200, 30);
JTextField adjectiveFP = new JTextField();
adjectiveFP.setBounds(165, 100, 200, 30);
JLabel labelNumber = new JLabel("Nombre : ");
labelNumber.setBounds(50, 150, 200, 30);
JTextField number = new JTextField();
number.setBounds(165, 150, 200, 30);
JButton submitButton = new JButton("Submit");
submitButton.setBounds(130, 720, 70, 50);
submitButton.setBackground(Color.black);
submitButton.setForeground(Color.white);
submitButton.setSize(150, 50);
submitButton.setFont(new Font("Times New Roman", Font.PLAIN, 25));
submitButton.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
JTextArea textArea = new JTextArea();
textArea.setText("Text " + labelAdjectiveMS.getText() + " Text");
JPanel panel = new JPanel();
panel.setBounds(300, 50, 400, 200);
panel.setBackground(Color.black);
panel.add(textArea);
}
});
//add elements to the frame
f.add(labelNameFP);
f.add(nameFP);
f.add(labelAdjectiveFP);
f.add(adjectiveFP);
f.add(labelNumber);
f.add(number);
f.add(submitButton);
f.setLayout(null);
f.setVisible(true);
}
}