like JFrame.wat is the .class? 1 // Fig. 11.19: RadioButtonFrame.java
2 // Creating radio buttons using ButtonGroup and JRadioButton.
3 import java.awt.FlowLayout;
4 import java.awt.Font;
5 import java.awt.event.ItemListener;
6 import java.awt.event.ItemEvent;
7 import javax.swing.JFrame;
8 import javax.swing.JTextField;
9 import javax.swing.JRadioButton;
10 import javax.swing.ButtonGroup;
11
12 public class RadioButtonFrame extends JFrame
13 {
14 private JTextField textField; // used to display font changes
15 private Font plainFont; // font for plain text
16 private Font boldFont; // font for bold text
17 private Font italicFont; // font for italic text
18 private Font boldItalicFont; // font for bold and italic text
19 private JRadioButton plainJRadioButton; // selects plain text
20 private JRadioButton boldJRadioButton; // selects bold text
21 private JRadioButton italicJRadioButton; // selects italic text
22 private JRadioButton boldItalicJRadioButton; // bold and italic
23 private ButtonGroup radioGroup; // buttongroup to hold radio buttons
24
25 // RadioButtonFrame constructor adds JRadioButtons to JFrame
26 public RadioButtonFrame()
27 {
28 super( "RadioButton Test" );
29 setLayout( new FlowLayout() ); // set frame layout
30
31 textField = new JTextField( "Watch the font style change", 25 );
32 add( textField ); // add textField to JFrame
33
34 // create radio buttons
35 plainJRadioButton = new JRadioButton( "Plain", true );
36 boldJRadioButton = new JRadioButton( "Bold", false );
37 italicJRadioButton = new JRadioButton( "Italic", false );
38 boldItalicJRadioButton = new JRadioButton( "Bold/Italic", false );
39 add( plainJRadioButton ); // add plain button to JFrame
40 add( boldJRadioButton ); // add bold button to JFrame
41 add( italicJRadioButton ); // add italic button to JFrame
42 add( boldItalicJRadioButton ); // add bold and italic button
43
44 // create logical relationship between JRadioButtons
45 radioGroup = new ButtonGroup(); // create ButtonGroup
46 radioGroup.add( plainJRadioButton ); // add plain to group
47 radioGroup.add( boldJRadioButton ); // add bold to group
48 radioGroup.add( italicJRadioButton ); // add italic to group
49 radioGroup.add( boldItalicJRadioButton ); // add bold and italic
50
51 // create font objects
52 plainFont = new Font( "Serif", Font.PLAIN, 14 );
53 boldFont = new Font( "Serif", Font.BOLD, 14 );
54 italicFont = new Font( "Serif", Font.ITALIC, 14 );
55 boldItalicFont = new Font( "Serif", Font.BOLD + Font.ITALIC, 14 );
56 textField.setFont( plainFont ); // set initial font to plain
57
58 // register events for JRadioButtons
59 plainJRadioButton.addItemListener(
60 new RadioButtonHandler( plainFont ) );
61 boldJRadioButton.addItemListener(
62 new RadioButtonHandler( boldFont ) );
63 italicJRadioButton.addItemListener(
64 new RadioButtonHandler( italicFont ) );
65 boldItalicJRadioButton.addItemListener(
66 new RadioButtonHandler( boldItalicFont ) );
67 } // end RadioButtonFrame constructor
68
69 // private inner class to handle radio button events
70 private class RadioButtonHandler implements ItemListener
71 {
72 private Font font; // font associated with this listener
73
74 public RadioButtonHandler( Font f )
75 {
76 font = f; // set the font of this listener
77 } // end constructor RadioButtonHandler
78
79 // handle radio button events
80 public void itemStateChanged( ItemEvent event )
81 {
82 textField.setFont( font ); // set font of textField
83 } // end method itemStateChanged
84 } // end private inner class RadioButtonHandler
85 } // end class RadioButtonFrame
Figure 11.20. Test class for RadioButtonFrame.
(This item is displayed on page 542 in the print version)
1 // Fig. 11.20: RadioButtonTest.java
2 // Testing RadioButtonFrame.
3 import javax.swing.JFrame;
4
5 public class RadioButtonTest
6 {
7 public static void main( String args[] )
8 {
9 RadioButtonFrame radioButtonFrame = new RadioButtonFrame();
10 radioButtonFrame.setDefaultCloseOperatio... JFrame.EXIT_ON_CLOSE );
11 radioButtonFrame.setSize( 300, 100 ); // set frame size
12 radioButtonFrame.setVisible( true ); // display frame
13 } // end main
14 } // end class RadioButtonTest
This code compiles and runs corrctly but how to put it in the html code.
for ex
<applet code="class name. plz give me a sample code that extends JApplet. i think a simple code will work better.if i understand this one the rest of the classes will be OK.
