public class TestStaticClass {
    
    public TestStaticClass(){
        System.out.println("TestStaticClass constructed");
    }

    static class StaticInner{
        public StaticInner(){
            System.out.println("StaticInner constructed");
        }
    }
    public static void main(String[] s){
        TestStaticClass tsc = new TestStaticClass();
        StaticInner si = new StaticInner();
    }
}

------解决方案--------------------
楼上的哥们，你这是静态类吗？？？

------解决方案--------------------
zazxzx
的回答是正确的，静态类只能在内部类中写

------解决方案--------------------
静态类只能是内部类