//桥接实现接口
public interface DrawAPI {
public void drawCircle(int radius, int x, int y);
}
//创建实现了 DrawAPI 接口的实体桥接实现类。
//RedCircle.java
public 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 +"]");
}
}
//GreenCircle.java
public 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 +"]");
}
}
public abstract class Shape {
protected DrawAPI drawAPI;
protected Shape(DrawAPI drawAPI){
this.drawAPI = drawAPI;
}
public abstract void draw();
}
//使用 Shape 和 DrawAPI 类画出不同颜色的圆。
//BridgePatternDemo.java
public class BridgePatternDemo {
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();
}
}
