public class GrandFather {

    static{
        System.out.println("GrandFather在静态代码块");
    }
}

public class Father extends GrandFather{ static{ System.out.println("Father在静态代码块"); } public static int fatherAge = 55; public Father(){ System.out.println("我是Father~"); }
}


public class Son extends Father{ static { System.out.println("Son在静态代码块"); } public static int sonAge = 25; public Son(){ System.out.println("我是Son~"); } }

 测试:

public class FGSTest{

    public static void main(String[] args) {

        System.out.println("main岁数:" + Son.fatherAge); //入口  1
       // System.out.println("main岁数:" + Son.sonAge); //入口  2

    }

}

结果:

GrandFather在静态代码块
Father在静态代码块
main岁数:55

 

public class FGSTest{

    public static void main(String[] args) {

        //System.out.println("main岁数:" + Son.fatherAge); //入口  1
        System.out.println("main岁数:" + Son.sonAge); //入口  2

    }

}

 结果:

GrandFather在静态代码块
Father在静态代码块
Son在静态代码块
main岁数:25

posted on 2019-03-21 10:46  程序员自我修养张振力  阅读(698)  评论(0编辑  收藏  举报