TextPane.java

// ui/TextPane.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// The JTextPane control is a little editor
import javax.swing.*;
import java.awt.*;
import java.util.function.*;
import onjava.*;
import static onjava.SwingConsole.*;

public class TextPane extends JFrame {
  private JButton b = new JButton("Add Text");
  private JTextPane tp = new JTextPane();
  private static Supplier<String> sg =
    new Rand.String(7);
  public TextPane() {
    b.addActionListener(e -> {
      for(int i = 1; i < 10; i++)
        tp.setText(tp.getText() + sg.get() + "\n");
    });
    add(new JScrollPane(tp));
    add(BorderLayout.SOUTH, b);
  }
  public static void main(String[] args) {
    run(new TextPane(), 475, 425);
  }
}