A Jaba based Application to set different font style //package p1;

import java.io.; import java.awt.; import java.awt.event.; import javax.swing.; import javax.swing.event.; /*****************************************************/ class FontDemo extends JFrame { FontChooser dialog=null; JTextArea ta; JButton fontButton;

FontDemo() { super("Font");

ta=new JTextArea(7,20); fontButton=new JButton("Set Font");

ActionListener ac=new ActionListener() { public void actionPerformed(ActionEvent ev) { if(dialog==null) dialog=new FontChooser(ta.getFont()); if(dialog.showDialog(FontDemo.this,"Choose a font")) { FontDemo.this.ta.setFont(dialog.createFont()); } } }; fontButton.addActionListener(ac);

add(ta,BorderLayout.CENTER); add(fontButton,BorderLayout.SOUTH);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(50,50,400,400); ta.append("Hello dear. how r u?"); ta.append("\n\n A quick brown fox jumps over the lazy dog."); ta.append("\n\n0123456789"); ta.append("\n~!@#$%^&*()_+|?><"); setVisible(true); } //////////////////////////////// public static void main(String[] args) { new FontDemo(); }

} /******************************************************/ public class FontChooser extends JPanel //implements ActionListener { private Font thisFont;

private JList jFace, jStyle, jSize;

private JDialog dialog; private JButton okButton;

JTextArea tf;

private boolean ok;

public FontChooser(Font withFont) { thisFont=withFont;

//////////////////// String[] fontNames= GraphicsEnvironment .getLocalGraphicsEnvironment() .getAvailableFontFamilyNames(); jFace=new JList(fontNames); jFace.setSelectedIndex(0);

jFace.addListSelectionListener(new ListSelectionListener() {public void valueChanged(ListSelectionEvent ev){tf.setFont(createFont());}});

String[] fontStyles={"Regular","Italic","Bold","Bold Italic"}; jStyle=new JList(fontStyles);jStyle.setSelectedIndex(0);

jStyle.addListSelectionListener(new ListSelectionListener() {public void valueChanged(ListSelectionEvent ev){tf.setFont(createFont());}});

String[] fontSizes=new String[30]; for(int j=0; j<30; j++) fontSizes[j]=new String(10+j*2+""); jSize=new JList(fontSizes); jSize.setSelectedIndex(0);

jSize.addListSelectionListener(new ListSelectionListener() {public void valueChanged(ListSelectionEvent ev){tf.setFont(createFont());}});

JPanel jpLabel=new JPanel(); jpLabel.setLayout(new GridLayout(1,3));

jpLabel.add(new JLabel("Font",JLabel.CENTER)); jpLabel.add(new JLabel("Font Style",JLabel.CENTER)); jpLabel.add(new JLabel("Size",JLabel.CENTER));

JPanel jpList=new JPanel(); jpList.setLayout(new GridLayout(1,3));

jpList.add(new JScrollPane(jFace)); jpList.add(new JScrollPane(jStyle)); jpList.add(new JScrollPane(jSize));

okButton=new JButton("OK"); JButton cancelButton=new JButton("Cancel");

okButton.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent ev) { ok=true; FontChooser.this.thisFont=FontChooser.this.createFont(); dialog.setVisible(false); } });

cancelButton.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent ev) { dialog.setVisible(false); } });

JPanel jpButton=new JPanel(); jpButton.setLayout(new FlowLayout()); jpButton.add(okButton); jpButton.add(new JLabel(" "));//dummy Label jpButton.add(cancelButton);

tf=new JTextArea(5,30); JPanel jpTextField=new JPanel(); jpTextField.add(new JScrollPane(tf));

JPanel centerPanel=new JPanel(); centerPanel.setLayout(new GridLayout(2,1)); centerPanel.add(jpList); centerPanel.add(jpTextField);

setLayout(new BorderLayout()); add(jpLabel,BorderLayout.NORTH); add(centerPanel,BorderLayout.CENTER); add(jpButton,BorderLayout.SOUTH); add(new JLabel(" "),BorderLayout.EAST);//dummy label add(new JLabel(" "),BorderLayout.WEST);//dummy label

tf.setFont(thisFont); tf.append("\nA quick brown fox jumps over the lazy dog."); tf.append("\n0123456789"); tf.append("\n~!@#$%^&*()_+|?><\n");

} ////////////////////////// public Font createFont() { Font fnt=thisFont; int fontstyle=Font.PLAIN; int x=jStyle.getSelectedIndex();

switch(x) { case 0: fontstyle=Font.PLAIN; break; case 1: fontstyle=Font.ITALIC; break; case 2: fontstyle=Font.BOLD; break; case 3: fontstyle=Font.BOLD+Font.ITALIC; break; }

int fontsize=Integer.parseInt((String)jSize.getSelectedValue()); String fontname=(String)jFace.getSelectedValue();

fnt=new Font(fontname,fontstyle,fontsize);

return fnt;

} ////////////////////////////////// public boolean showDialog(Component parent, String title) { ok=false;

Frame owner=null; if(parent instanceof Frame) owner=(Frame)parent; else owner=(Frame)SwingUtilities.getAncestorOfClass(Frame.class,parent); if(dialog==null || dialog.getOwner()!=owner) { dialog=new JDialog(owner,true); dialog.add(this); dialog.getRootPane().setDefaultButton(okButton); dialog.setSize(400,325); }

dialog.setTitle(title); dialog.setVisible(true); //System.out.println(dialog.getWidth()+" "+dialog.getHeight()); return ok; } ////////////////////////////// }