内部静态类的实例化

public class CheckInnerStatic {

    private static class Test {
    static {
        System.out.println("Static block initialized");
    }
    public Test () {
        System.out.println("Constructor called");
    }
}

    public static void main (String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException {
        System.out.println("Inside main");
        Class<?> cls = Class.forName("CheckInnerStatic$Test");
        //Test test = new Test();
    }
}
今天使用一个类中包含多个内部静态类方式，但实例化时报错，google搜了下正确的使用方法
http://*.com/questions/5828884/loading-static-inner-class-in-java