What is Reflection in Java and why is it needed?

Hello everyone! I've been learning Java for about six months, writing simple applications, and I came across the term "reflection" (Reflection API). I read the Oracle documentation but didn't fully understand it. I have a simple class: ```java public class User { private String name; private int age; public User(String name, int age) { this.name = name; this.age = age; } public void sayHello() { System.out.println("Hello, I'm " + name); } private void secretMethod() { System.out.println("Secret method!"); } } ``` I understand that usually we create an object via `new User("Ivan", 25)` and call methods directly. But why do we need to get information about a class at runtime? When can this be useful? What confuses me is that