java制作电子图章,如何画弧形的公司名称???

int width=150,height=150;
java.awt.image.BufferedImage bi=new java.awt.image.BufferedImage(width,height,java.awt.image.BufferedImage.TYPE_INT_RGB);java.awt.Graphics g=bi.getGraphics();g.setColor(java.awt.Color.WHITE);
g.fillRect(0,0,width,height);g.setColor(java.awt.Color.RED);
g.fillOval(0,0,width,height);
g.setColor(java.awt.Color.WHITE);
g.fillOval(3,3,width-6,height-6);g.setColor(java.awt.Color.RED);
int size=50;
g.setFont(new java.awt.Font("宋体",java.awt.Font.PLAIN,size));
g.drawString("★",width/2-size/2,height/2+size/3);//g.setFont(new java.awt.Font("宋体",java.awt.Font.PLAIN,20));
g.drawString("公用章",width/4+8,height-height/6);
g.dispose();
java制作电子图章,如何画弧形的公司名称???谁能帮帮俺??   如何画弧形的文字?