/* Reference: https://www.tutorialspoint.com/design_pattern/bridge_pattern.htm */ interface DrawAPI { public void drawCircle(int radius, int x, int y); } class RedCircle implements DrawAPI { @Override public void drawCircle(int radius, int x, int y) { System.out.println("Drawing Circle[ color: red, radius: " + radius + ", x: " + x + ", " + y + "]"); } } class GreenCircle implements DrawAPI { @Override public void drawCircle(int radius, int x, int y) { System.out.println("Drawing Circle[ color: green, radius: " + radius + ", x: " + x + ", " + y + "]"); } } abstract class Shape { protected DrawAPI drawAPI; protected Shape(DrawAPI drawAPI){ this.drawAPI = drawAPI; } public abstract void draw(); } class Circle extends Shape { private int x, y, radius; public Circle(int x, int y, int radius, DrawAPI drawAPI) { super(drawAPI); this.x = x; this.y = y; this.radius = radius; } public void draw() { drawAPI.drawCircle(radius,x,y); } } public class BridgePattern { public static void main(String[] args) { Shape redCircle = new Circle(100,100, 10, new RedCircle()); Shape greenCircle = new Circle(100,100, 10, new GreenCircle()); redCircle.draw(); greenCircle.draw(); } }