【自动化__持续集成】___java___重写

一、代码如下

package www.wujianbotwo;

class Door {
	int height= 200;
	int weight= 80;
	String material= "实木";
	
	private void open() {
		// TODO Auto-generated method stub
		System.out.println("开门");

	}
	
	public void close() {
		// TODO Auto-generated method stub
		System.out.println("关门");

	}

}

package www.wujianbotwo;

public class SafeDoor extends Door {
	@Override
	//public void close() {
		// TODO Auto-generated method stub
		//super.close();
	//}
	
	public void close() {
		// TODO Auto-generated method stub
		System.out.println("子类关闭");
	}
	
	public void closeTwo() {
		// TODO Auto-generated method stub
		super.close();
	}
	
	
	public void closeThre() {
		// TODO Auto-generated method stub
		this.close();
	}
	
	public  void lock() {
		// TODO Auto-generated method stub
		System.out.println("子类锁门");
	}
	
}

-generated method stub
		Door door= new Door();
		//door.open();
		System.out.println(door.hashCode());
		
		SafeDoor sdoor= new SafeDoor();
		//sdoor.open();
		sdoor.lock();
		sdoor.close();
		sdoor.closeTwo();
		sdoor.closeThre();

	}

}