I want to insert document in my TextArea. How can I do it?
I found method setDocument(Document document), but I don't understand, how can I create variable of type Document.
import javax.swing.*;
import javax.swing.text.Document;
import javax.swing.text.PlainDocument;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
/**
* Created by Oleg on 18.04.14.
*/
public class MainForm extends JDialog implements ItemListener, ActionListener {
JPanel panel = new JPanel(/*new FlowLayout(FlowLayout.CENTER,320,80)*/);
CheckboxGroup cbG = new CheckboxGroup();
Checkbox rap, punk, rock, drum;
JLabel label1, label2;
JTextArea textArea;
public MainForm() {
setSize(640, 860);
setTitle("Main");
setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
GridLayout experimentLayout = new GridLayout(5,4);
//setLayout(new BorderLayout(10,10));
cbG = new CheckboxGroup();
rap = new Checkbox("Rap", cbG, false);
punk = new Checkbox("Punk", cbG, false);
drum = new Checkbox("Drum", cbG, false);
rock = new Checkbox("Rock", cbG, false);
label1 = new JLabel("<html><font color='red'>Choose kind of music: </font></html>");
label1.setFont(new Font("Arial", Font.BOLD, 25));
label2 = new JLabel("asa");
panel.setLayout(experimentLayout);
panel.add(label1);
panel.add(label2);
panel.add(rap);
panel.add(punk);
panel.add(drum);
panel.add(rock);
panel.add(textArea);
add(panel, BorderLayout.NORTH);
rap.addItemListener(this);
punk.addItemListener(this);
drum.addItemListener(this);
rock.addItemListener(this);
}
@Override
public void itemStateChanged(ItemEvent e) {
repaint();
//if(e.getItem().equals(punk.getLabel()))
//textArea.setDocument(j);
}
@Override
public void actionPerformed(ActionEvent e) {
}
I want to write a program that displays a Checkbox choice in a field TextArea document with information about the genre. There is an event that is responsible for selecting the flag and in the future it should load document in TextArea), but I can't load document..