23. Dynamic vs Static Binding: The Deep Dive

The Scenario

Polymorphism relies on binding. Some things are bound at compile time (Static), others at runtime (Dynamic). Understanding which is which is crucial for predicting execution flow.

class Super {
    static void staticMethod() { System.out.println("Super Static"); }
    void instanceMethod() { System.out.println("Super Instance"); }
    String type = "Super Var";
}

class Sub extends Super {
    static void staticMethod() { System.out.println("Sub Static"); }
    void instanceMethod() { System.out.println("Sub Instance"); }
    String type = "Sub Var";
}

public class Main {
    public static void main(String[] args) {
        Super obj = new Sub();
        
        obj.staticMethod();
        obj.instanceMethod();
        System.out.println(obj.type);
    }
}

Take Your Shot

Predicted Output

Type exactly what you think will be printed in the console.