Using an inner class name and an object name same in Java

Question

In the following code snippet, presumably it appears that it should issue some compilation error but it doesn\'t:

class Outer {
    public static class Inner {
          


        

Answer 1

Actually the class name is Outer$Inner.

Inner classes are essentially a hack introduced in Java 1.1. The JVM doesn't actually have any concept of an inner class, and so the compiler has to bodge it. The compiler generates class B "outside" of class A, but in the same package, and then adds synthetic accessors/constructors to it to allow A to get access to it.

Checkout the following post:

Java inner class visibility puzzle