multiplication

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class Multi extends Application {

    @Override
    public void start(Stage primaryStage) {
        GridPane grid = new GridPane();

        grid.setPadding(new Insets(25));
        grid.setHgap(20);
        grid.setVgap(12);

        for (int row = 1; row <= 9; row++) {
            for (int col = 1; col <= row; col++) {
                String formula = col + " × " + row + " = " + (col * row);
                Text text = new Text(formula);

                text.setFont(Font.font("Monospaced", FontWeight.BOLD, 15));
                text.setFill(Color.DARKSLATEBLUE);

                grid.add(text, col - 1, row - 1);
            }
        }

        Scene scene = new Scene(grid, Color.FLORALWHITE);

        primaryStage.setTitle("JavaFX 自动适配乘法表");
        primaryStage.setScene(scene);

        primaryStage.sizeToScene();
        primaryStage.show();
    }

    static void main(String[] args) {
        launch(args);
    }
}