package paint;
import javax.swing.JFrame;
public class Graph2DG extends JFrame{
public Graph2DG(){
G2DPanel jp=new G2DPanel();
getContentPane().add(jp);
setSize(200,200);
setVisible(true);
}
public static void main(String[] args) {
new Graph2DG();
}
}
package paint;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Arc2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;
import javax.swing.JPanel;
public class G2DPanel extends JPanel{
public void paintComponent(Graphics g){
super.paintComponent(g);
Graphics2D g2d=(Graphics2D)g;
g2d.setColor(Color.cyan);
Rectangle2D rect=new Rectangle2D.Double(0,0,200,200);
g2d.fill(rect);
Arc2D arc1=new Arc2D.Double(0,0,200,200,0,180,Arc2D.CHORD);
Arc2D arc2=new Arc2D.Double(0,0,200,200,0,-180,Arc2D.CHORD);
RoundRectangle2D round1=new RoundRectangle2D.Double(0,50,100,100,100,100);
RoundRectangle2D round2=new RoundRectangle2D.Double(100,50,100,100,100,100);
RoundRectangle2D round3=new RoundRectangle2D.Double(37.5,87.8,25,25,25,25);
RoundRectangle2D round4=new RoundRectangle2D.Double(137.5,87.8,25,25,25,25);
g2d.setColor(Color.white);
g2d.fill(arc1);
g2d.setColor(Color.black);
g2d.fill(arc2);
g2d.fill(round1);
g2d.setColor(Color.white);
g2d.fill(round2);
g2d.fill(round3);
g2d.setColor(Color.black);
g2d.fill(round4);
}
}
责任编辑：小草
