Java by API/java.awt

• AWTEvent
• AWTEventMulticaster
• AWTPermission
• ActionListener
• AlphaComposite
• AudioClip
• BasicStroke
• BorderLayout
• CardLayout
• Color
• Component
• ComponentOrientation
• Container
• Cursor
• DebugGraphics
• Desktop
• Dialog
• DisplayMode
• EventQueue
• FileDialog
• FlowLayout
• FocusTraversalPolicy
• Frame
• GradientPaint
• Graphics
• Graphics2D
• GraphicsConfiguration
• GraphicsDevice
• GraphicsEnvironment
• GridBagConstraints
• GridBagLayout
• GridLayout
• Image
• ItemSelectable
• KeyboardFocusManager
• LayoutManager
• LayoutManager2
• MediaTracker
• Point
• Rectangle
• RenderingHints
• Robot
• Shape
• SplashScreen
• SpringLayout
• SpringLayout.Constraints
• SystemColor
• SystemTray
• TexturePaint
• Toolkit
• Transparency
• TrayIcon

Font.BOLD

 
import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      Font f = new Font ("Serif", Font.PLAIN, 12);
      g.setFont (f);
      g.drawString ("Serif - PLAIN - 12", 10, 30);
      f = new Font ("Sanserif", Font.ITALIC, 10);
      g.setFont (f);
      g.drawString ("Sanserif - ITALIC - 10", 10, 60);
      f = new Font ("Monospaced", Font.BOLD | Font.ITALIC, 14);
      g.setFont (f);
      g.drawString ("Monospaced - BOLD and ITALIC - 14", 10, 90);
      f = new Font ("Dialog", Font.PLAIN, 12);
      g.setFont (f);
      g.drawString ("Dialog - PLAIN - 12", 10, 120);
      f = new Font ("DialogInput", Font.BOLD + Font.ITALIC, 10);
      g.setFont (f);
      g.drawString ("DialogInput - BOLD and ITALIC - 10", 10, 150);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

Font.BOLD | Font.ITALIC

 
import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      Font f = new Font ("Serif", Font.PLAIN, 12);
      g.setFont (f);
      g.drawString ("Serif - PLAIN - 12", 10, 30);
      f = new Font ("Sanserif", Font.ITALIC, 10);
      g.setFont (f);
      g.drawString ("Sanserif - ITALIC - 10", 10, 60);
      f = new Font ("Monospaced", Font.BOLD | Font.ITALIC, 14);
      g.setFont (f);
      g.drawString ("Monospaced - BOLD and ITALIC - 14", 10, 90);
      f = new Font ("Dialog", Font.PLAIN, 12);
      g.setFont (f);
      g.drawString ("Dialog - PLAIN - 12", 10, 120);
      f = new Font ("DialogInput", Font.BOLD + Font.ITALIC, 10);
      g.setFont (f);
      g.drawString ("DialogInput - BOLD and ITALIC - 10", 10, 150);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

Font: createFont(int fontFormat, InputStream fontStream)

 
import java.awt.Font;
import java.awt.FontFormatException;
import java.io.IOException;
import java.io.InputStream;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void loadFont() throws FontFormatException, IOException{
    String fontFileName = "yourfont.ttf";
    InputStream is = this.getClass().getResourceAsStream(fontFileName);
    Font ttfBase = Font.createFont(Font.TRUETYPE_FONT, is);
    Font ttfReal = ttfBase.deriveFont(Font.PLAIN, 24);
    
  }
  public static void main(String[] args) {
  }
}

Font: createGlyphVector(FontRenderContext frc, String str)

 
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class MainClass{
  public static void main(String[] args) {
    JFrame jf = new JFrame("Demo");
    Container cp = jf.getContentPane();
    MyCanvas tl = new MyCanvas();
    cp.add(tl);
    jf.setSize(300, 200);
    jf.setVisible(true);
  }
}
class MyCanvas extends JComponent {
  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D)g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
    
    String s = "www.jexp.ru";
    Font font = new Font("Serif", Font.PLAIN, 24);
    FontRenderContext frc = g2.getFontRenderContext();
    GlyphVector gv = font.createGlyphVector(frc, s);
    g2.drawGlyphVector(gv, 40, 60);
  }
}

Font: deriveFont(int style, float size)

 
import java.awt.Font;
import java.awt.FontFormatException;
import java.io.IOException;
import java.io.InputStream;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void loadFont() throws FontFormatException, IOException{
    String fontFileName = "yourfont.ttf";
    InputStream is = this.getClass().getResourceAsStream(fontFileName);
    Font ttfBase = Font.createFont(Font.TRUETYPE_FONT, is);
    Font ttfReal = ttfBase.deriveFont(Font.PLAIN, 24);
    
  }
  public static void main(String[] args) {
  }
}

Font: getFamily()

 
import java.awt.Font;
import java.awt.GraphicsEnvironment;
public class MainClass {
  public static void main(String[] args) throws Exception {
    Font[] fonts  = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
    for (int i = 0; i < fonts.length; i++) {
      System.out.print(fonts[i].getFontName() + " : ");
      System.out.print(fonts[i].getFamily() + " : ");
      System.out.print(fonts[i].getName());
      System.out.println();
    }
  }
}

Font: getFontName()

 
import java.awt.Font;
import java.awt.GraphicsEnvironment;
public class MainClass {
  public static void main(String[] args) throws Exception {
    Font[] fonts  = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
    for (int i = 0; i < fonts.length; i++) {
      System.out.print(fonts[i].getFontName() + " : ");
      System.out.print(fonts[i].getFamily() + " : ");
      System.out.print(fonts[i].getName());
      System.out.println();
    }
  }
}

Font: getLineMetrics(String str, FontRenderContext frc)

 
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.font.FontRenderContext;
import java.awt.font.LineMetrics;
import java.awt.geom.Line2D;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class MainClass {
  public static void main(String[] args) {
    JFrame jf = new JFrame("Demo");
    Container cp = jf.getContentPane();
    MyCanvas tl = new MyCanvas();
    cp.add(tl);
    jf.setSize(300, 200);
    jf.setVisible(true);
  }
}
class MyCanvas extends JComponent {
  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    Font font = new Font("Serif", Font.PLAIN, 72);
    g2.setFont(font);
    String s = "www.jexp.ru";
    float x = 50, y = 150;
    FontRenderContext frc = g2.getFontRenderContext();
    float width = (float) font.getStringBounds(s, frc).getWidth();
    Line2D baseline = new Line2D.Float(x, y, x + width, y);
    g2.setPaint(Color.lightGray);
    g2.draw(baseline);
    // Draw the ascent.
    LineMetrics lm = font.getLineMetrics(s, frc);
    Line2D ascent = new Line2D.Float(x, y - lm.getAscent(), x + width, y - lm.getAscent());
    g2.draw(ascent);
    // Draw the descent.
    Line2D descent = new Line2D.Float(x, y + lm.getDescent(), x + width, y + lm.getDescent());
    g2.draw(descent);
    // Draw the leading.
    Line2D leading = new Line2D.Float(x, y + lm.getDescent() + lm.getLeading(), x + width, y
        + lm.getDescent() + lm.getLeading());
    g2.draw(leading);
    // Render the string.
    g2.setPaint(Color.black);
    g2.drawString(s, x, y);
  }
}

Font: getName()

 
import java.awt.Font;
import java.awt.GraphicsEnvironment;
public class MainClass {
  public static void main(String[] args) throws Exception {
    Font[] fonts  = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
    for (int i = 0; i < fonts.length; i++) {
      System.out.print(fonts[i].getFontName() + " : ");
      System.out.print(fonts[i].getFamily() + " : ");
      System.out.print(fonts[i].getName());
      System.out.println();
    }
  }
}

Font: getSize()

  
import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JFrame;
public class Main extends JFrame {
  public static void main(String[] a) {
    Main f = new Main();
    f.setSize(300, 300);
    f.setVisible(true);
  }
  public void paint(Graphics g) {
    Font f = g.getFont();
    String fontName = f.getName();
    String fontFamily = f.getFamily();
    int fontSize = f.getSize();
    int fontStyle = f.getStyle();
    String msg = "Family: " + fontName;
    msg += ", Font: " + fontFamily;
    msg += ", Size: " + fontSize + ", Style: ";
    if ((fontStyle & Font.BOLD) == Font.BOLD)
      msg += "Bold ";
    if ((fontStyle & Font.ITALIC) == Font.ITALIC)
      msg += "Italic ";
    if ((fontStyle & Font.PLAIN) == Font.PLAIN)
      msg += "Plain ";
    g.drawString(msg, 4, 16);
  }
}

Font: getStringBounds(String str, FontRenderContext frc)

 
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.font.FontRenderContext;
import java.awt.geom.Rectangle2D;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class MainClass {
  public static void main(String[] args) {
    JFrame jf = new JFrame("Demo");
    Container cp = jf.getContentPane();
    MyCanvas tl = new MyCanvas();
    cp.add(tl);
    jf.setSize(300, 200);
    jf.setVisible(true);
  }
}
class MyCanvas extends JComponent {
  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2.setFont(new Font("Serif", Font.PLAIN, 48));
    FontRenderContext frc = g2.getFontRenderContext();
    String s = "www.jexp.ru";
    Rectangle2D bounds = g2.getFont().getStringBounds(s, frc);
    float width = (float) bounds.getWidth();
    int centerX = 100;
    int baselineY = 70;
    g2.drawString(s, centerX - width / 2, baselineY);
  }
}

Font: getStyle()

  
import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JFrame;
public class Main extends JFrame {
  public static void main(String[] a) {
    Main f = new Main();
    f.setSize(300, 300);
    f.setVisible(true);
  }
  public void paint(Graphics g) {
    Font f = g.getFont();
    String fontName = f.getName();
    String fontFamily = f.getFamily();
    int fontSize = f.getSize();
    int fontStyle = f.getStyle();
    String msg = "Family: " + fontName;
    msg += ", Font: " + fontFamily;
    msg += ", Size: " + fontSize + ", Style: ";
    if ((fontStyle & Font.BOLD) == Font.BOLD)
      msg += "Bold ";
    if ((fontStyle & Font.ITALIC) == Font.ITALIC)
      msg += "Italic ";
    if ((fontStyle & Font.PLAIN) == Font.PLAIN)
      msg += "Plain ";
    g.drawString(msg, 4, 16);
  }
}

Font.ITALIC

 
import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      Font f = new Font ("Serif", Font.PLAIN, 12);
      g.setFont (f);
      g.drawString ("Serif - PLAIN - 12", 10, 30);
      f = new Font ("Sanserif", Font.ITALIC, 10);
      g.setFont (f);
      g.drawString ("Sanserif - ITALIC - 10", 10, 60);
      f = new Font ("Monospaced", Font.BOLD | Font.ITALIC, 14);
      g.setFont (f);
      g.drawString ("Monospaced - BOLD and ITALIC - 14", 10, 90);
      f = new Font ("Dialog", Font.PLAIN, 12);
      g.setFont (f);
      g.drawString ("Dialog - PLAIN - 12", 10, 120);
      f = new Font ("DialogInput", Font.BOLD + Font.ITALIC, 10);
      g.setFont (f);
      g.drawString ("DialogInput - BOLD and ITALIC - 10", 10, 150);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

FontMetrics: getAscent()

 
/*
 * Output:
 *  
 */
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int fontSize = 20;
    g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize));
    
    
    FontMetrics fm = g.getFontMetrics();
    String s = "www.jexp.ru";
    
    int stringWidth = fm.stringWidth(s);
    int w = 200;
    int h = 200;
    
    int x = (w - stringWidth) / 2;
    int baseline = fm.getMaxAscent() +
                       (h - (fm.getAscent() + fm.getMaxDecent()))/2;
    int ascent  = fm.getMaxAscent();
    int descent = fm.getMaxDecent();
    int fontHeight = fm.getMaxAscent() + fm.getMaxDecent();
    g.setColor(Color.white);
    g.fillRect(x, baseline-ascent , stringWidth, fontHeight);
    g.setColor(Color.gray);
    g.drawLine(x, baseline, x+stringWidth, baseline);
    g.setColor(Color.red);
    g.drawLine(x, baseline+descent, x+stringWidth, baseline+descent);
    g.setColor(Color.blue);
    g.drawLine(x, baseline-ascent,
               x+stringWidth, baseline-ascent);
    g.setColor(Color.black);
    g.drawString(s, x, baseline);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

FontMetrics: getDescent()

  
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
public class Main extends JFrame {
  public Main() {
    super("Demonstrating FontMetrics");
    setSize(510, 210);
    setVisible(true);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  public void paint(Graphics g) {
    g.setFont(new Font("SansSerif", Font.BOLD, 12));
    FontMetrics fm = g.getFontMetrics();
    g.drawString("Current font: " + g.getFont(), 10, 40);
    g.drawString("Ascent: " + fm.getAscent(), 10, 55);
    g.drawString("Descent: " + fm.getDescent(), 10, 70);
    g.drawString("Height: " + fm.getHeight(), 10, 85);
    g.drawString("Leading: " + fm.getLeading(), 10, 100);
    Font font = new Font("Serif", Font.ITALIC, 14);
    fm = g.getFontMetrics(font);
    g.setFont(font);
    g.drawString("Current font: " + font, 10, 130);
    g.drawString("Ascent: " + fm.getAscent(), 10, 145);
    g.drawString("Descent: " + fm.getDescent(), 10, 160);
    g.drawString("Height: " + fm.getHeight(), 10, 175);
    g.drawString("Leading: " + fm.getLeading(), 10, 190);
  }
  public static void main(String args[]) {
    Main app = new Main();
  }
}

FontMetrics: getHeight()

  
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
public class Main extends JFrame {
  public Main() {
    super("Demonstrating FontMetrics");
    setSize(510, 210);
    setVisible(true);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  public void paint(Graphics g) {
    g.setFont(new Font("SansSerif", Font.BOLD, 12));
    FontMetrics fm = g.getFontMetrics();
    g.drawString("Current font: " + g.getFont(), 10, 40);
    g.drawString("Ascent: " + fm.getAscent(), 10, 55);
    g.drawString("Descent: " + fm.getDescent(), 10, 70);
    g.drawString("Height: " + fm.getHeight(), 10, 85);
    g.drawString("Leading: " + fm.getLeading(), 10, 100);
    Font font = new Font("Serif", Font.ITALIC, 14);
    fm = g.getFontMetrics(font);
    g.setFont(font);
    g.drawString("Current font: " + font, 10, 130);
    g.drawString("Ascent: " + fm.getAscent(), 10, 145);
    g.drawString("Descent: " + fm.getDescent(), 10, 160);
    g.drawString("Height: " + fm.getHeight(), 10, 175);
    g.drawString("Leading: " + fm.getLeading(), 10, 190);
  }
  public static void main(String args[]) {
    Main app = new Main();
  }
}

FontMetrics: getLeading()

  
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
public class Main extends JFrame {
  public Main() {
    super("Demonstrating FontMetrics");
    setSize(510, 210);
    setVisible(true);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  public void paint(Graphics g) {
    g.setFont(new Font("SansSerif", Font.BOLD, 12));
    FontMetrics fm = g.getFontMetrics();
    g.drawString("Current font: " + g.getFont(), 10, 40);
    g.drawString("Ascent: " + fm.getAscent(), 10, 55);
    g.drawString("Descent: " + fm.getDescent(), 10, 70);
    g.drawString("Height: " + fm.getHeight(), 10, 85);
    g.drawString("Leading: " + fm.getLeading(), 10, 100);
    Font font = new Font("Serif", Font.ITALIC, 14);
    fm = g.getFontMetrics(font);
    g.setFont(font);
    g.drawString("Current font: " + font, 10, 130);
    g.drawString("Ascent: " + fm.getAscent(), 10, 145);
    g.drawString("Descent: " + fm.getDescent(), 10, 160);
    g.drawString("Height: " + fm.getHeight(), 10, 175);
    g.drawString("Leading: " + fm.getLeading(), 10, 190);
  }
  public static void main(String args[]) {
    Main app = new Main();
  }
}

FontMetrics: getMaxAscent()

 
/*
 * Output:
 *  
 */
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int fontSize = 20;
    g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize));
    
    
    FontMetrics fm = g.getFontMetrics();
    String s = "www.jexp.ru";
    
    int stringWidth = fm.stringWidth(s);
    int w = 200;
    int h = 200;
    
    int x = (w - stringWidth) / 2;
    int baseline = fm.getMaxAscent() +
                       (h - (fm.getAscent() + fm.getMaxDecent()))/2;
    int ascent  = fm.getMaxAscent();
    int descent = fm.getMaxDecent();
    int fontHeight = fm.getMaxAscent() + fm.getMaxDecent();
    g.setColor(Color.white);
    g.fillRect(x, baseline-ascent , stringWidth, fontHeight);
    g.setColor(Color.gray);
    g.drawLine(x, baseline, x+stringWidth, baseline);
    g.setColor(Color.red);
    g.drawLine(x, baseline+descent, x+stringWidth, baseline+descent);
    g.setColor(Color.blue);
    g.drawLine(x, baseline-ascent,
               x+stringWidth, baseline-ascent);
    g.setColor(Color.black);
    g.drawString(s, x, baseline);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

FontMetrics: getMaxDecent()

 
/*
 * Output:
 *  
 */
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int fontSize = 20;
    g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize));
    
    
    FontMetrics fm = g.getFontMetrics();
    String s = "www.jexp.ru";
    
    int stringWidth = fm.stringWidth(s);
    int w = 200;
    int h = 200;
    
    int x = (w - stringWidth) / 2;
    int baseline = fm.getMaxAscent() +
                       (h - (fm.getAscent() + fm.getMaxDecent()))/2;
    int ascent  = fm.getMaxAscent();
    int descent = fm.getMaxDecent();
    int fontHeight = fm.getMaxAscent() + fm.getMaxDecent();
    g.setColor(Color.white);
    g.fillRect(x, baseline-ascent , stringWidth, fontHeight);
    g.setColor(Color.gray);
    g.drawLine(x, baseline, x+stringWidth, baseline);
    g.setColor(Color.red);
    g.drawLine(x, baseline+descent, x+stringWidth, baseline+descent);
    g.setColor(Color.blue);
    g.drawLine(x, baseline-ascent,
               x+stringWidth, baseline-ascent);
    g.setColor(Color.black);
    g.drawString(s, x, baseline);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

FontMetrics: stringWidth(String s)

 
/*
 * Output:
 *  
 */
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int fontSize = 20;
    g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize));
    
    
    FontMetrics fm = g.getFontMetrics();
    String s = "www.jexp.ru";
    
    int stringWidth = fm.stringWidth(s);
    int w = 200;
    int h = 200;
    
    int x = (w - stringWidth) / 2;
    int baseline = fm.getMaxAscent() +
                       (h - (fm.getAscent() + fm.getMaxDecent()))/2;
    int ascent  = fm.getMaxAscent();
    int descent = fm.getMaxDecent();
    int fontHeight = fm.getMaxAscent() + fm.getMaxDecent();
    g.setColor(Color.white);
    g.fillRect(x, baseline-ascent , stringWidth, fontHeight);
    g.setColor(Color.gray);
    g.drawLine(x, baseline, x+stringWidth, baseline);
    g.setColor(Color.red);
    g.drawLine(x, baseline+descent, x+stringWidth, baseline+descent);
    g.setColor(Color.blue);
    g.drawLine(x, baseline-ascent,
               x+stringWidth, baseline-ascent);
    g.setColor(Color.black);
    g.drawString(s, x, baseline);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

Font.PLAIN

 
/*
 * Output:
 *  
 */
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int fontSize = 20;
    g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize));
    
    
    FontMetrics fm = g.getFontMetrics();
    String s = "www.jexp.ru";
    
    int stringWidth = fm.stringWidth(s);
    int w = 200;
    int h = 200;
    
    int x = (w - stringWidth) / 2;
    int baseline = fm.getMaxAscent() +
                       (h - (fm.getAscent() + fm.getMaxDecent()))/2;
    int ascent  = fm.getMaxAscent();
    int descent = fm.getMaxDecent();
    int fontHeight = fm.getMaxAscent() + fm.getMaxDecent();
    g.setColor(Color.white);
    g.fillRect(x, baseline-ascent , stringWidth, fontHeight);
    g.setColor(Color.gray);
    g.drawLine(x, baseline, x+stringWidth, baseline);
    g.setColor(Color.red);
    g.drawLine(x, baseline+descent, x+stringWidth, baseline+descent);
    g.setColor(Color.blue);
    g.drawLine(x, baseline-ascent,
               x+stringWidth, baseline-ascent);
    g.setColor(Color.black);
    g.drawString(s, x, baseline);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}

Font.TRUETYPE_FONT

  
/*
 * @(#)DemoFonts.java 1.17 06/08/29
 * 
 * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * -Redistribution of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 * 
 * -Redistribution in binary form must reproduce the above copyright notice, 
 *  this list of conditions and the following disclaimer in the documentation
 *  and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
 * be used to endorse or promote products derived from this software without 
 * specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL 
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
 * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
 * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST 
 * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, 
 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY 
 * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, 
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that this software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
 * nuclear facility.
 */
/*
 * @(#)DemoFonts.java 1.17 06/08/29
 */
import java.awt.Font;
import java.io.InputStream;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
 * A cache of the dynamically loaded fonts found in the fonts directory.
 */
public class Main {
  // Prepare a static "cache" mapping font names to Font objects.
  private static String[] names = { "A.ttf" };
  private static Map<String, Font> cache = new ConcurrentHashMap<String, Font>(names.length);
  static {
    for (String name : names) {
      cache.put(name, getFont(name));
    }
  }
  public static Font getFont(String name) {
    Font font = null;
    if (cache != null) {
      if ((font = cache.get(name)) != null) {
        return font;
      }
    }
    String fName = "/fonts/" + name;
    try {
      InputStream is = Main.class.getResourceAsStream(fName);
      font = Font.createFont(Font.TRUETYPE_FONT, is);
    } catch (Exception ex) {
      ex.printStackTrace();
      System.err.println(fName + " not loaded.  Using serif font.");
      font = new Font("serif", Font.PLAIN, 24);
    }
    return font;
  }
}

new Font(String name, int style, int size)

 
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    Dimension d = this.getPreferredSize();
    int fontSize = 20;
    g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize));
     
    g.setColor(Color.red);
    
    g.drawString("www.jexp.ru", 10, 20);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}