leetcode-go/basis/oo-design/InitClass.java

public class InitClass {
    public static void main(String[] args) {
        System.out.println(Son.name);
    }
}

class Father {
    public static String name = "Father";

    static {
        System.out.println("Init Father!");
    }
}

class Son extends Father {
    static {
        System.out.println("Init Son!");
    }
}