Java/2D Graphics GUI/Arc

Arc2D.CHORD

  
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Arc2D;
public class MainClass extends Frame {
  public static void main(String[] args) {
    (new MainClass()).setVisible(true);
  }
  public MainClass() {
    super("Shape Sampler");
    setSize(400, 550);
  }
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    Arc2D arc = new Arc2D.Float(200, 50, 100, 50, 0, 90, Arc2D.CHORD);
    g2d.draw(arc);
  }
}

Arc2D.Float: Arc2D.OPEN

  
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Arc2D;
public class MainClass extends Frame {
  public static void main(String[] args) {
    (new MainClass()).setVisible(true);
  }
  public MainClass() {
    super("Shape Sampler");
    setSize(400, 550);
  }
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    Arc2D arc = new Arc2D.Float(200, 50, 100, 50, 0, 90, Arc2D.OPEN);
    g2d.draw(arc);
  }
}

Arc2D.PIE

  
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Arc2D;
public class MainClass extends Frame {
  public static void main(String[] args) {
    (new MainClass()).setVisible(true);
  }
  public MainClass() {
    super("Shape Sampler");
    setSize(400, 550);
  }
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    Arc2D arc = new Arc2D.Float(200, 50, 100, 50, 0, 90, Arc2D.PIE);
    g2d.draw(arc);
  }
}

Compares two arcs and returns true if they are equal or both null.

 
import java.awt.geom.Arc2D;
public class Main {

  /**
   * Compares two arcs and returns <code>true</code> if they are equal or
   * both <code>null</code>.
   *
   * @param a1  the first arc (<code>null</code> permitted).
   * @param a2  the second arc (<code>null</code> permitted).
   *
   * @return A boolean.
   */
  public static boolean equal(final Arc2D a1, final Arc2D a2) {
      if (a1 == null) {
          return (a2 == null);
      }
      if (a2 == null) {
          return false;
      }
      if (!a1.getFrame().equals(a2.getFrame())) {
          return false;
      }
      if (a1.getAngleStart() != a2.getAngleStart()) {
          return false;
      }
      if (a1.getAngleExtent() != a2.getAngleExtent()) {
          return false;
      }
      if (a1.getArcType() != a2.getArcType()) {
          return false;
      }
      return true;
  }
}

Draw draw an arc outline

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

Fill an arc outline

  
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JPanel {
  public static void main(String[] a) {
    JFrame f = new JFrame();
    f.setSize(400, 400);
    f.add(new MainClass());
    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); 
  }
}