java面向对象编程类

public class Dog {
    static int furColor;
    float height;
    float weight;
    
    void catchMouse(Mouse m) {
        //as;dfj;asdf
        //asdfj;asf
        //m.scream();
    }
    
    public static void main(String[] args) {
        //int i;
        System.out.println(furColor);
        Dog d = new Dog();
        Mouse m = new Mouse();
        d.catchMouse(m);
        HelloWorld hw = new HelloWorld();
    }
}

class Mouse {
    int height;
}