JAVA接口示例-基礎知識庫-匯編語言學習筆記

JAVA接口示例

2023-09-05 阅读 62 评论 0

摘要：总感觉有点虚，但慢慢找到感觉了。将对象放进数组里，这就比较深入了。 interface drawTest{public void draw();public void doAnyThing(); } class ParallelogramUserInterface extends QuadrangleUserInterface implements drawTest{public void draw(){Syste

总感觉有点虚，但慢慢找到感觉了。将对象放进数组里，这就比较深入了。

interface drawTest{public void draw();public void doAnyThing();
}
class ParallelogramUserInterface extends QuadrangleUserInterface implements drawTest{public void draw(){System.out.println("Parallelogram.draw()");}public void doAnyThing(){System.out.println("This is ParallelogramUserInterface doAnyThing method.");}
}
class SquareUserInterface extends QuadrangleUserInterface implements drawTest{public void draw(){System.out.println("SquareUserInterface.draw()");}public void doAnyThing(){System.out.println("This is SquareUserInterface doAnyThing method.");}
}
class AnyThingUserInterface extends QuadrangleUserInterface{public void doAnyThing(){System.out.println("This is AnyThingUserInterface doAnyThing method.");}
}public class QuadrangleUserInterface implements drawTest{public void doAnyThing(){System.out.println("This is QuadrangleUserInterface doAnyThing method.");}public void draw(){System.out.println("QuadrangleUserInterface.draw()");}public static void main(String[] args) {// TODO Auto-generated method stubdrawTest[] d={new SquareUserInterface(),new ParallelogramUserInterface(),new QuadrangleUserInterface()};for(int i = 0; i<d.length; i++){System.out.println(i);d[i].draw();d[i].doAnyThing();}}}

输出：

0
SquareUserInterface.draw()
This is SquareUserInterface doAnyThing method.
1
Parallelogram.draw()
This is ParallelogramUserInterface doAnyThing method.
2
QuadrangleUserInterface.draw()
This is QuadrangleUserInterface doAnyThing method.

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