Java by API/java.awt/Graphics

Graphics: clipRect(int x, int y, int width, int height)

 
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.setColor (Color.red);
    Graphics clippedGraphics = g.create();
    clippedGraphics.drawRect (0,0,100,100);
    clippedGraphics.clipRect (25, 25, 50, 50);
    clippedGraphics.drawLine (0,0,100,100);
    clippedGraphics.dispose();
    clippedGraphics=null;
    g.drawLine (0,100,100,0);
  }
  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);
  }
}

Graphics: draw3DRect(int x, int y, int width, int height, boolean raised)

 
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.setColor (Color.gray);
    g.draw3DRect (25, 10, 50, 75, true);
    g.draw3DRect (25, 110, 50, 75, false);
    g.fill3DRect (100, 10, 50, 75, true);
    g.fill3DRect (100, 110, 50, 75, false);
  }
  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);
  }
}

Graphics: drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)

 
/*
 * Output:
 *  
 */
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.drawArc(25, 25, 120, 120, 45, 270);
  
  }
  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);
  }
}

Graphics: drawBytes(byte[] data,int offset,int length,int x,int y)

 
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      byte [] barray = { 0x41, 0x42, 0x43 };

      g.drawBytes (barray, 0, barray.length, 10, 30);
  }
  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);
  }
}

Graphics: drawChars(char[] data, int offset, int length, int x, int y)

 
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      char [] carray = { "w", "w", "w",".", "j","a","v","a","2","s",".","c","o","m"};

      g.drawChars (carray, 0, carray.length, 10, 60);
  }
  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);
  }
}

Graphics: drawImage(Image img, int x, int y, ImageObserver ob)

 
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    Image img = createImage();
    g.drawImage(img, 20,20,this);
  }
  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);
  }
  
  private Image createImage(){
    BufferedImage bufferedImage = new BufferedImage(200,200,BufferedImage.TYPE_INT_RGB);
    Graphics g = bufferedImage.getGraphics();
    g.drawString("www.jexp.ru", 20,20);
    
    return bufferedImage;
  }
}

Graphics: drawLine(int x1, int y1, int x2, int y2)

 
/*
 * Output:
 *  
 */
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.drawLine(25, 25, 120, 120);
  
  }
  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);
  }
}

Graphics: drawOval(int x, int y, int width, int height)

 
/*
 * Output:
 *  
 */
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.drawOval(25, 25, 120, 120);
  
  }
  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);
  }
}

Graphics: drawPolygon(int[] xPoints, int[] yPoints, int nPoints)

 
/*
 * Output:
 *  
 */
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int xpoints[] = {25, 145, 25, 145, 25};
    int ypoints[] = {25, 25, 145, 145, 25};
    int npoints = 5;
    
    g.drawPolygon(xpoints, ypoints, npoints);
  }
  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);
  }
}

Graphics: drawPolyline(int[] xPoints,int[] yPoints,int nPoints)

 
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      int[] xs = {25, 75, 125, 85, 125, 75, 25, 65};
      int[] ys = {50, 90, 50, 100, 150, 110, 150, 100};
      g.drawPolyline(xs, ys, 8);
  
  }
  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);
  }
}

Graphics: drawRect(int x, int y, int width, int height)

 
/*
 * Output:
 *  
 */
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.setColor(Color.red);
    
    g.drawRect(10,10,100,100);
  }
  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);
  }
}

Graphics: drawRoundRect(int x,int y,int width,int height,int arcWidth,int arcHeight)

 
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      g.drawRoundRect(25, 50, 100, 100, 25, 50);
  }
  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);
  }
}

Graphics: drawString(String str, int x, int y)

 
/*
 * Output:
 *  
 */
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);
  }
}

Graphics: fill3DRect(int x, int y, int width, int height, boolean raised)

 
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.setColor (Color.gray);
    g.draw3DRect (25, 10, 50, 75, true);
    g.draw3DRect (25, 110, 50, 75, false);
    g.fill3DRect (100, 10, 50, 75, true);
    g.fill3DRect (100, 110, 50, 75, false);
  }
  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);
  }
}

Graphics: fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)

  

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JPanel {
  public static void main(String[] a) {
    JFrame f = new JFrame();
    f.setSize(400, 400);
    f.add(new Main());
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
  }
  public void paint(Graphics g) {
    g.setColor (Color.yellow);  
    g.fillArc (5, 15, 50, 75, 25, 165); 
  }
}

Graphics: fillOval(int x, int y, int width, int height)

 
/*
 * Output:
 *  
 */
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.fillOval(25, 25, 120, 120);
  
  }
  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);
  }
}

Graphics: fillPolygon(int[] xPoints, int[] yPoints, int nPoints)

 
/*
 * Output:
 *  
 */
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int xpoints[] = {25, 145, 25, 145, 25};
    int ypoints[] = {25, 25, 145, 145, 25};
    int npoints = 5;
    
    g.fillPolygon(xpoints, ypoints, npoints);
  }
  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);
  }
}

Graphics: fillRect(int x, int y, int width, int height)

 
/*
 * Output:
 *  
 */
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.fillRect(0,0,200,200);
  
  }
  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);
  }
}

Graphics: fillRoundRect(int x,int y,int width,int height,int arcWidth,int arcHeight)

 
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
      g.fillRoundRect(150, 50, 100, 100, 50, 25);
  
  }
  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);
  }
}

Graphics: getFontMetrics()

 
/*
 * 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);
  }
}

Graphics: setClip(int x, int y, int width, int height)

 
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    g.drawString(g.getClipBounds().toString(), 10, 30);
    g.clipRect(10, 40, getSize().width - 20, getSize().height - 80);
    g.fillOval(0, 0, getSize().width, getSize().height);
    String newClip = g.getClipBounds().toString();
    g.setClip(0, 0, getSize().width, getSize().height);
    g.drawString(newClip, 10, getSize().height - 10);
  }
  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);
  }
}

Graphics: setColor(Color c)

 
/*
 * Output:
 *  
 */
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);
  }
}

Graphics: setPaintMode()

 
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int w = getSize().width;
    int midW = w / 2;
    g.drawString("XOR Mode", 0, 30);
    g.drawOval(7, 37, 50, 50);
    g.setXORMode(Color.white);
    for (int i = 0; i < 15; i += 3) {
      g.drawOval(10 + i, 40 + i, 50, 50);
    }
    g.setPaintMode();
    g.drawString("Paint Mode", midW, 30);
    g.drawOval(midW + 7, 37, 50, 50);
    for (int i = 0; i < 15; i += 3) {
      g.drawOval(midW + 10 + i, 40 + i, 50, 50);
    }
  }
  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);
  }
}

Graphics: setXORMode(Color cl)

 
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public void paint(Graphics g) {
    int w = getSize().width;
    int midW = w / 2;
    g.drawString("XOR Mode", 0, 30);
    g.drawOval(7, 37, 50, 50);
    g.setXORMode(Color.white);
    for (int i = 0; i < 15; i += 3) {
      g.drawOval(10 + i, 40 + i, 50, 50);
    }
    g.setPaintMode();
    g.drawString("Paint Mode", midW, 30);
    g.drawOval(midW + 7, 37, 50, 50);
    for (int i = 0; i < 15; i += 3) {
      g.drawOval(midW + 10 + i, 40 + i, 50, 50);
    }
  }
  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);
  }
}