What is the difference between inner class and static nested class in Java?

Hello everyone! I started learning Java and got confused about nested classes. I read the Oracle documentation, but it's too dry. There are two types: inner class and static nested class. I wrote a small example, but I don't understand why the code works differently. Here's my code: ```java public class OuterClass { private String outerField = "outer field"; // Inner class class InnerClass { void display() { System.out.println("Inner: " + outerField); } } // Static nested class static class StaticNestedClass { void display() { // Error! Cannot see outerField // System.out.println("StaticNested: " + outerField); } } } ``` Questions: