有什么方法可以将其放入简单的draw / fillPolygon中吗？我正在尝试绘制一些使用多边形函数会更容易且冗余更少的东西，但是我不确定如何在JPanel中使用它。
g2D.draw(new Line2D.Double(0,4,3,4));
g2D.draw(new Line2D.Double(3,5,3));
g2D.draw(new Line2D.Double(5,12,3));
g2D.draw(new Line2D.Double(12,11,2));
g2D.draw(new Line2D.Double(11,2,9,1));
g2D.draw(new Line2D.Double(9,1,1));
g2D.draw(new Line2D.Double(3,2));
g2D.draw(new Line2D.Double(0,3));
g2D.draw(new Line2D.Double(0,4));
创建一个Path2D。
Path2D.Double path = Path2D.Double();
path.moveTo(0,4);
path.lineTo(3,4);
path.lineTo(5,3);
path.lineTo(12,3);
path.lineTo(11,2);
path.lineTo(9,1);
path.lineTo(3,1);
path.lineTo(0,2);
path.lineTo(0,3);
path.lineTo(0,4);
g2D.draw(path);
或使用drawPolyline(int[] xPoints,int[] yPoints,int nPoints)。
g2D.drawPolyline(new int[] { 0,3,5,12,11,9,0 },new int[] { 4,4,2,1,4 },10);
或者使用drawPolygon(int[] xPoints,int nPoints)，而不必在末尾重复第一点。
g2D.drawPolygon(new int[] { 0,3 },9);
或者再次创建Polygon并使用它，而无需重复第一点：
Polygon polygon = Polygon(new int[] { 0,9);
g2D.drawPolygon(polygon);