What methods can be used to access private properties of a class?

Access to private properties of a class can be obtained in the following ways:

1. Through access methods (getters/setters) — if they are provided in the class.

2. Using Reflection API — in Java, you can access private fields using reflection by setting the setAccessible(true) flag:

import java.lang.reflect.Field;

public class Example {
    private String secret = "hidden";

    public static void main(String[] args) throws Exception {
        Example obj = new Example();
        Field field = Example.class.getDeclaredField("secret");
        field.setAccessible(true); // allow access
        String value = (String) field.get(obj);
        System.out.println(value); // Will output "hidden"
    }
}

3. Within nested classes or classes in the same package — if the access level permits.

Using reflection to access private fields should be done with caution, as it breaks encapsulation and can lead to security and maintainability issues.