How to increment Font Size in Fraction say 14.1,14.2

Question

Please reply soon urgent

Answer 1

Below is my code at the end is the label class what you suggested me. This code is working fine for graphics Object but i am not able to increase the label size in fraction.
package mypackage1;
import javax.swing.JFrame;
import java.awt.Dimension;
import javax.swing.JButton;
import java.awt.Rectangle;
import javax.swing.JComboBox;
import javax.swing.JPanel;
import java.awt.SystemColor;
import javax.swing.BorderFactory;
import java.awt.Color;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.*;
import java.util.Vector;
import java.awt.event.*;
import javax.swing.JLabel;
public class DisplayFractionalFonts extends JFrame implements ActionListener,ItemListener
private JButton jButton1 = new JButton();
static JComboBox fontNameCombo;
static JComboBox fontSizeCombo;
private HorizontalPanel jPanel1 = new HorizontalPanel();
static String fontName;
static float fontSize=10.0f;
private String dummyFontName;
private float dummyFontSize;
TransPanel jPanel2 = new TransPanel();
mylabel lb[] = new mylabel[10];
public DisplayFractionalFonts()
this.getContentPane().setLayout(null);
this.setTitle("Display Fractional Fonts");
Dimension d1=Toolkit.getDefaultToolkit().getScreenSize();
this.setBounds((d1.width/2-this.WIDTH)/2,(d1.height/2-this.HEIGHT)/2,this.WIDTH,this.HEIGHT);
// this.setSize(449, 396);
this.setSize(449,600);
jButton1.setText("Preview");
jButton1.setBounds(new Rectangle(345, 15, 80, 25));
jButton1.setFont(new Font("Dialog", 1, 11));
jButton1.addActionListener(this);
fontNameCombo = new JComboBox(initializeNameCombo());
fontNameCombo.setBounds(new Rectangle(15, 15, 175, 25));
fontNameCombo.addItemListener(this);
fontSizeCombo = new JComboBox(initializeSizeCombo());
fontSizeCombo.setBounds(new Rectangle(195, 15, 145, 25));
fontSizeCombo.addItemListener(this);
fontSizeCombo.setEditable(true);
jPanel1.setBounds(new Rectangle(195, 45, 230, 45));
jPanel1.setBackground(SystemColor.activeCaptionText);
jPanel1.setBorder(BorderFactory.createLineBorder(Color.black, 1));
jPanel2.setBounds(new Rectangle(10, 95, 415, 260));
jPanel2.setBackground(Color.white);
jPanel2.setBorder(BorderFactory.createLineBorder(Color.black, 1));
lb[0]=new mylabel("Hello world :->");
lb[1]=new mylabel("Hello world :->");
lb[2]=new mylabel("Hello world :->");
lb[3]=new mylabel("Hello world :->");
lb[4]=new mylabel("Hello world :->");
lb[5]=new mylabel("Hello world :->");
lb[6]=new mylabel("Hello world :->");
lb[7]=new mylabel("Hello world :->");
lb[8]=new mylabel("Hello world :->");
lb[9]=new mylabel("Hello world :->");
Font jj[]= new Font[10];
Font ft = new Font("Lucida Bright", Font.PLAIN, 1);
for(int i=0; i<jj.length; ++i)
jj[i] = ft.deriveFont(20 + .1f*i);
for(int i=0; i<jj.length; ++i)
lb[0].setFont(jj);
lb[0].setBounds(new Rectangle(10, 365, 415, 20));
lb[1].setBounds(new Rectangle(10, 390, 415, 20));
lb[2].setBounds(new Rectangle(10, 415, 415, 20));
lb[3].setBounds(new Rectangle(10, 440, 415, 20));
lb[4].setBounds(new Rectangle(10, 465, 415, 20));
lb[5].setBounds(new Rectangle(10, 490, 415, 20));
lb[6].setBounds(new Rectangle(10, 515, 415, 20));
lb[7].setBounds(new Rectangle(10, 540, 415, 20));
lb[8].setBounds(new Rectangle(10, 365, 415, 20));
lb[9].setBounds(new Rectangle(10, 590, 415, 20));
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.getContentPane().add(jPanel2, null);
this.getContentPane().add(jPanel1, null);
this.getContentPane().add(fontSizeCombo, null);
this.getContentPane().add(fontNameCombo, null);
this.getContentPane().add(jButton1, null);
for(int i=0; i<jj.length; ++i)
this.getContentPane().add(lb[i], null);
this.setVisible(true);
public Vector initializeNameCombo()
GraphicsEnvironment g_Env = GraphicsEnvironment.getLocalGraphicsEnvironment();
String envFonts[] = g_Env.getAvailableFontFamilyNames();
Vector fontVector = new Vector();
for(int i=0;i<envFonts.length;i++)
fontVector.addElement(envFonts[i]);
return fontVector;
public Vector initializeSizeCombo()
Vector sizeVector = new Vector();
for(int i=10;i<25;i=i+2)
sizeVector.addElement(new Integer(""+i));
return sizeVector;
public static void main(String args[])
DisplayFractionalFonts df=new DisplayFractionalFonts();
public void actionPerformed(ActionEvent ae)
DisplayFractionalFonts.fontName = dummyFontName;
DisplayFractionalFonts.fontSize = dummyFontSize;
jPanel2.setNewFont();
jPanel2.renderShape();
jPanel1.setNewFont();
jPanel1.renderShape();
public void itemStateChanged(ItemEvent e)
Object obj= e.getSource();
if(obj.equals(fontNameCombo))
dummyFontName=(fontNameCombo.getSelectedItem()).toString();
}else if (obj.equals(fontSizeCombo)){
dummyFontSize = (new Float((fontSizeCombo.getSelectedItem()).toString()).floatValue());
class TransPanel extends JPanel
private Font[] fonts = new Font[10];
int w,h;
FontMetrics fm;
TransPanel()
Font font = new Font("Arial", Font.PLAIN, 1);
for(int i=0; i<fonts.length; ++i)
fonts[i] = font.deriveFont(DisplayFractionalFonts.fontSize + .1f*i);
public void setNewFont()
Font font = new Font(DisplayFractionalFonts.fontName, Font.PLAIN, 1);
for(int i=0; i<fonts.length; ++i)
fonts[i] = font.deriveFont(DisplayFractionalFonts.fontSize + .1f*i);
public void renderShape() {
repaint();
public void paintComponent(Graphics g)
super.paintComponent(g);
System.out.println("g OK");
String s = "Hello WORLD";
Dimension d = getSize();
     w = d.width;
     h = d.height;
float width = (float)this.getBounds().getWidth();
float height = (float)this.getBounds().getHeight();
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
for(int i=0; i<fonts.length; ++i)
g.setFont(fonts[i]);
g.drawString(s+" Font Size : "+fonts[i].getSize2D()+" -> ",(int)(w/2-width/2)+10, 20 + 25*i);
class HorizontalPanel extends JPanel
private Font[] fonts = new Font[11];
int w,h;
FontMetrics fm;
HorizontalPanel()
Font font = new Font("Arial", Font.PLAIN, 1);
for(int i=0; i<fonts.length; ++i)
fonts[i] = font.deriveFont(DisplayFractionalFonts.fontSize + .1f*i);
public void setNewFont()
Font font = new Font(DisplayFractionalFonts.fontName, Font.PLAIN, 1);
for(int i=0; i<fonts.length; ++i)
fonts[i] = font.deriveFont(DisplayFractionalFonts.fontSize + .1f*i);
public void renderShape() {
repaint();
public void paintComponent(Graphics g)
super.paintComponent(g);
System.out.println("g OK");
Dimension d = getSize();
     w = d.width;
     h = d.height;
float width = (float)this.getBounds().getWidth();
float height = (float)this.getBounds().getHeight();
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
for(int i=0; i<fonts.length; ++i)
g.setFont(fonts[i]);
fm=g.getFontMetrics();
//System.out.println("ascent:-"+fm.getAscent()+"advance "+fm.getMaxCharBounds(g));
//g.drawString("A",(int)(w/2-width/2)+10+10*i,(int)h/2+4);
g2.drawString("A",(w/2-width/2)+10+(DisplayFractionalFonts.fontSize*i),h/2+4);
class mylabel extends JLabel
mylabel()
super();
mylabel(String str)
super(str);
protected void paintComponent(Graphics g)
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING , RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
super.paintComponent(g);