b0853152fba7001d12abf2e30f3a2ddd

来自「Android平台对应的高欢堂所编写的书籍的对应源代码 可以不用敲键盘了」· 代码 · 共 32 行

class Room {
	private double rSize;
	private Desk desk;
    public Room(){
		rSize = 50;
    }
    public void Create() {
    	desk = new Desk(this);
    	System.out.println(desk.GetSize());
    }
    public double GetSize(){
        return rSize;
    }
}
//--------------------------------------------
class Desk {
    private Room mother;
    public Desk(Room ma){
    	mother = ma;
      }
    public double GetSize(){
        return mother.GetSize()* 0.2;
    }
}
//---------------------------------------------
public class JMain {
	public static void main(String[] args) {
		Room room = new Room();
		room.Create();
	}
}