// 实现部分接口
interface Renderer {
    void renderShape(String shape);
}

// 具体实现：矢量渲染
class VectorRenderer implements Renderer {
    @Override
    public void renderShape(String shape) {
        System.out.println("绘制 " + shape + " 使用矢量渲染");
    }
}

// 具体实现：栅格渲染
class RasterRenderer implements Renderer {
    @Override
    public void renderShape(String shape) {
        System.out.println("绘制 " + shape + " 使用栅格渲染");
    }
}

// 抽象部分：形状
abstract class Shape {
    protected Renderer renderer;

    public Shape(Renderer renderer) {
        this.renderer = renderer;
    }

    public abstract void draw();
}

// 具体抽象：圆形
class Circle extends Shape {
    public Circle(Renderer renderer) {
        super(renderer);
    }

    @Override
    public void draw() {
        renderer.renderShape("圆形");
    }
}

// 具体抽象：矩形
class Rectangle extends Shape {
    public Rectangle(Renderer renderer) {
        super(renderer);
    }

    @Override
    public void draw() {
        renderer.renderShape("矩形");
    }
}

// 客户端代码
public class BridgePatternDemo {
    public static void main(String[] args) {
        Renderer vectorRenderer = new VectorRenderer();
        Renderer rasterRenderer = new RasterRenderer();

        Shape circle = new Circle(vectorRenderer);
        circle.draw(); // 绘制 圆形 使用矢量渲染

        Shape rectangle = new Rectangle(rasterRenderer);
        rectangle.draw(); // 绘制 矩形 使用栅格渲染
    }
}