blob: 22dc3c67343b39bd3deb7bd85b70fdefc28e46f2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/* Listing3702.java */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class Listing3702
extends JFrame
implements ActionListener, CaretListener
{
public Listing3702()
{
super("JTextField");
addWindowListener(new WindowClosingAdapter(true));
Container cp = getContentPane();
cp.setLayout(new FlowLayout());
JTextField tf;
//Linksb�ndiges Textfeld mit "Hello, world"
tf = new JTextField("Hello, world");
cp.add(tf);
//Leeres Textfeld mit 20 Spalten
tf = new JTextField(20);
cp.add(tf);
//Textfeld mit "Hello, world" und 20 Spalten
tf = new JTextField("Hello, world", 20);
tf.addActionListener(this);
tf.addCaretListener(this);
cp.add(tf);
}
public void actionPerformed(ActionEvent event)
{
JTextField tf = (JTextField)event.getSource();
System.out.println("---ActionEvent---");
System.out.println(tf.getText());
System.out.println(tf.getSelectedText());
System.out.println(tf.getSelectionStart());
System.out.println(tf.getSelectionEnd());
System.out.println(tf.getCaretPosition());
}
public void caretUpdate(CaretEvent event)
{
System.out.println("---CaretEvent---");
System.out.println(event.getDot());
System.out.println(event.getMark());
}
public static void main(String[] args)
{
Listing3702 frame = new Listing3702();
frame.setLocation(100, 100);
frame.setSize(300, 150);
frame.setVisible(true);
}
}
|
