How can I visualize a binary tree in Java?

How can I visualize a binary tree in Java?

You can use libraries like JavaFX or Swing to create a graphical representation of a binary tree. Would you like a code example?

Yes, please provide a simple code example using JavaFX.

Here's a basic example:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.shape.Line;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;

public class BinaryTreeVisualization extends Application {
    @Override
    public void start(Stage primaryStage) {
        Pane pane = new Pane();
        drawTree(pane, 400, 50, 100);
        Scene scene = new Scene(pane, 800, 600);
        primaryStage.setTitle("Binary Tree Visualization");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private void drawTree(Pane pane, double x, double y, double length) {
        if (length < 10) return;
        Circle circle = new Circle(x, y, 5);
        pane.getChildren().add(circle);
        drawTree(pane, x - length, y + 50, length / 2);
        drawTree(pane, x + length, y + 50, length / 2);
        pane.getChildren().add(new Line(x, y, x - length, y + 50));
        pane.getChildren().add(new Line(x, y, x + length, y + 50));
    }

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

This code creates a simple binary tree visualization.

What if I want to add more features like node values?

You can modify the Circle to include text for node values. You can use a Text node from JavaFX to display the values next to the circles.