Java's 'static' keyword explained in context of main method and encapsulation

The article explains Java programming concepts like encapsulation, getters, and setters. It uses the 'main' method's static nature to introduce how some elements belong to a class rather than individual objects. The core principle of encapsulation is keeping class data private and controlling access through public methods. This approach prevents invalid data, like a negative age, and centralizes validation logic. The piece clarifies that these concepts answer fundamental questions about data access and object versus class ownership.