Java -- week 13th lab -- Task 2 -- compile a FontFamily class, which gets all the available font names on the current machine and writes

Test class:
[Java]
* Copyright and version Declaration of the program
* Copyright (c) 2011, a student from the computer College of Yantai University
* All rights reserved.
* File name: compile a FontFamily class that obtains all available font names on the current machine.
* Author: Lei hengxin
* Completion date: January 1, November 20, 2012
* Version No.: V1.0
* Description of tasks and Solutions
* Input Description: Write A FontFamily class that obtains all available font names on the current machine.
* Input Description: compile a dialog box FontDialog, which is a mode dialog box and adopts the BorderLayout layout.
* Input Description: contains the name of all fonts displayed in the north of a JComboBox, including a JLabel in the middle to display the font effect, including two buttons in the south.
* Enter Description: Click YES, set the font effect in the window on which the dialog box depends, and click Cancle to cancel. Compile a window FrameHaveDialog.
* Input Description: This window has a button and a dialog box. When you click this button, the FontDialog dialog box appears.
* Enter Description: The text displayed in the display area is displayed based on the text selected from the drop-down list of the user in the dialog box. Finally, write a program execution entry for testing.
* Problem description:
* Program output:
* End the comment in the program Header
*/
Package task_two;
 
Public class Test {
 
/**
* @ Param args
*/
Public static void main (String [] args ){
// TODO Auto-generated method stub
New FrameHaveDialog ();
}
 
}

 
 
Mypanel class:
[Java]
Package task_two;
Import java. awt .*;
Import java. awt. event .*;
Import javax. swing .*;
Public class Mypanel extends Panel {
 
JButton button1, button2;
Public Mypanel (){
Button1 = new JButton ("Yes ");
Button2 = new JButton ("Cancle ");
Add (button1 );
Add (button2 );
}
}

 
 
FrameHaveDialog class:
[Java]
Package task_two;
 
Import java. awt. FlowLayout;
Import java. awt. Font;
Import java. awt. event. ActionEvent;
Import java. awt. event. ActionListener;
Import java. awt. event. FocusListener;
 
Import javax. swing .*;
 
// This window has a button and a dialog box. When you click this button, the FontDialog dialog box appears.
// Then, based on the text selected from the drop-down list in the displayed dialog box. Finally, write a program execution entry for testing.
Public class FrameHaveDialog extends JFrame implements ActionListener {
JTextArea text1;
JButton button;
FontDialog dialog;
Public FrameHaveDialog (){
Text1 = new JTextArea (6, 15 );
Button = new JButton ("Open dialog box ");
Add (text1 );
Add (button );
Button. addActionListener (this );
Dialog = new FontDialog (this, "modify font dialog box", true );
SetLayout (new FlowLayout ());
SetBounds (200,200,200,200 );
SetVisible (true );
}
 
Public void actionreceivmed (ActionEvent e ){
// Int index = dialog. list. getSelectedIndex ();
// Text1.setFont (new Font (String) dialog. list. getItemAt (index), Font. PLAIN, 12 ));
Dialog. setVisible (true );
If (dialog. panel. button1.hasFocus () = true)
{

Int index = dialog. list. getSelectedIndex ();
Text1.setFont (new Font (String) dialog. list. getItemAt (index), Font. PLAIN, dialog. list. getFont (). getSize ()));
}

}
}

 
 
FontFamily class:
[Java]
Package task_two;
 
Import java. awt. GraphicsEnvironment;
 
// Compile a FontFamily class that obtains all available font names on the current machine.
Public class FontFamily {
Public String [] getfont (){
GraphicsEnvironment e = GraphicsEnvironment. getLocalGraphicsEnvironment ();
String [] fontName = e. getAvailableFontFamilyNames ();
Return fontName;
}
}

 
 
 
FontDialog class:
[Java]
Package task_two;
 
Import java. awt. BorderLayout;
Import java. awt. Font;
Import java. awt. event. ActionEvent;
Import java. awt. event. ActionListener;
Import java. awt. event. ItemEvent;
Import java. awt. event. ItemListener;
 
Import javax. swing .*;
 
// Compile a dialog box FontDialog, which is a mode dialog box with the BorderLayout layout.
// Contains the name of all fonts in the north of JComboBox, including a JLabel in the middle to display the font effect, including two buttons in the south.
// Click YES, set the font effect in the window on which the dialog box depends, and click Cancle to cancel.
Public class FontDialog extends JDialog implements ItemListener, ActionListener {
JComboBox list;
JLabel lable;
Mypanel;
Public FontDialog (JFrame f, String s, boolean B ){
Super (f, s, B );
Panel = new Mypanel ();
List = new JComboBox ();
Lable = new JLabel ("font effects ");
FontFamily fontFamily = new FontFamily ();
String [] s1 = fontFamily. getfont ();
For (int I = 0; I <s1.length; I ++ ){
List. addItem (s1 [I]);
}

Add (list, BorderLayout. NORTH );
Add (lable, BorderLayout. CENTER );
Add (panel, BorderLayout. SOUTH );
List. addItemListener (this );
Panel. button1.addActionListener (this );
Panel. button2.addActionListener (this );
SetBounds (380,380,380,380 );
}
 

Public void itemStateChanged (ItemEvent e ){
// TODO Auto-generated method stub
If (e. getSource () = list)
{
String name = (String) list. getSelectedItem ();
// UIManager. put ("Label. font", new Font (name, Font. BOLD, 12 ));
// System. out. print (list. getItemAt (6 ));
Lable. setFont (new Font (name, Font. PLAIN, list. getFont (). getSize ()));
}

}
Public void actionreceivmed (ActionEvent e ){
If (e. getSource () = panel. button1)
{
// Int I = list. getSelectedIndex ();
// FrameHaveDialog frameHaveDialog = new FrameHaveDialog ();
// Int index = list. getSelectedIndex ();
// Lable. setFont (new Font (String) list. getItemAt (index), Font. PLAIN, list. getFont (). getSize ()));
// System. out. print (0 );
SetVisible (false );
// System. exit (0 );
}
Else if (e. getSource () = panel. button2)
{
// System. out. print (1 );
SetVisible (false );
// System. exit (0 );
}

}
 
 
 
}

 
 
Running result: