No enclosing instance of type ObjectTest is accessible. Must qualify the allocation with an enclosin

type ObjectTest is accessible. Must qualify the allocation with an enclosin"/>

No enclosing instance of type ObjectTest is accessible. Must qualify the allocation with an enclosin

刚刚写代码运行出错， 报的问题：

No enclosing instance of type ObjectTest is accessible. Must qualify the allocation with an enclosing instance of type ObjectTest (e.g. x.new A() where x is an instance of ObjectTest).

大概意思就是：无法访问ObjectTest类型的封闭实例。必须用ObjectTest(例如x)类型的封闭实例限定分配。new A()其中x是ObjectTest的实例)。                       

我要在mian方法里面调用自己写的内部类，出现了此问题。其实还是由于不仔细构成的，因为main方法是静态的,而自己写的内部类是动态的。只要在内部类前加上static就行。

问题出现在：

看代码：

package cn.liu.io3;import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectOutputS