访问Java中的私有静态嵌套类中的修饰符 [英] Access modifiers inside a private static nested class in Java

问题描述

我在Java中有一个private static嵌套类。访问修饰符在这个类中的字段和方法的意义是什么？我已尝试公开和私人，对我的申请没有影响。

  public class MyList< T> {
 private static class Node {//列表节点
 private Object item; 
 private Node next; 
 private node prev; 
 
 private Node（Node next）{
 this.next = next; 
} 
 
私人静态节点doStuff（）{} 
} 
} 
  

$两种嵌套类：1.静态（嵌套类）和2.非静态（也称为内部类）

$

b
$ b

现在，Outer类 MyList 可以访问内部类的所有成员 Node ，但是当你想要某些外部类访问它的限制时，你实际上使用类 Node （嵌套类）的成员的访问说明符。

有趣的是： Source1 ， Source2

I have a "private static" nested class in Java. What is the significance of access modifiers for fields and methods inside this class? I've tried both public and private with no effect on my application.

public class MyList<T>{
    private static class Node{ // List node
        private Object item;
        private Node next;
        private Node prev;

        private Node(Node next){
            this.next = next;
        }

        private static Node doStuff(){}
    }
}

解决方案

Two kinds of nested classes: 1. Static (nested class) and 2. Non-static (also called inner class)

Now, the Outer class, MyList can access all the members of the inner class Node, but you actually use the access specifiers for the members of the class Node (nested class) when you want restrictions of some external class accessing it.

Interesting reads: Source1, Source2

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