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package sample; import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.canvas.Canvas; import javafx.scene.canvas.GraphicsContext; import javafx.scene.layout.BorderPane; import javafx.scene.paint.Color; import javafx.scene.shape.ArcType; import javafx.stage.Stage; public class _magatama extends Application { public static void main(String... args) { Application.launch(args); } private static final int VIEW_W = 400, VIEW_H = 300; @Override public void start(Stage stage) throws Exception { BorderPane pane = new BorderPane(); stage.setScene(new Scene(pane)); Canvas view = new Canvas(VIEW_W, VIEW_H); pane.setCenter(view); draw(view.getGraphicsContext2D()); stage.show(); } private void draw(GraphicsContext gc) { gc.setTransform(1, 0, 0, 1, VIEW_W / 2, VIEW_H / 2); gc.setFill(Color.BLACK); gc.fillArc(-150, -150, 300, 300, 0, -180, ArcType.ROUND); gc.setFill(Color.WHITE); gc.fillArc(-150, -150, 300, 300, 0, 180, ArcType.ROUND); gc.fillArc(0, -75, 150, 150, 0, -180, ArcType.ROUND); gc.setFill(Color.BLACK); gc.fillArc(-150, -75, 150, 150, 0, 180, ArcType.ROUND); gc.strokeArc(-150, -150, 300, 300, 0, 360, ArcType.OPEN); } }