Java Reflection Mechanism Series (ii) example

Here I take the customer to buy a camera for example to illustrate the application of Java reflection mechanism. The classes and interfaces involved in the example are:

Camera interface: Defines the Takephoto () method.

Camera01 class: A type of camera that implements the camera interface.

CAMERA02 class: Another type of camera that implements the camera interface.

Seller class: Selling cameras.

Customer class: Buy a camera, there is a main method.

All classes are in a COM package.

The procedure is as follows:

public interface Camera {
　　//声明照相机必须可以拍照
public void takePhoto();
}
public class Camera01 implements Camera {
private final int prefixs =300;//300万象素
private final double optionZoom=3.5; //3.5倍变焦
public void takePhoto() {
　System.out.println("Camera01 has taken a photo");
}
}

Similar to having

public class Camera02 implements Camera {
private final int prefixs =400;
private final double optionZoom=5;
public void takePhoto() {
　System.out.println("Camera02 has taken a photo");
}
}