Mastering Java: The Ultimate Quiz for 'Thinking in Java'

When is dynamic binding used?

1. To access static methods

2. While overloading methods

3. During method overriding

4. Upon using final methods

The correct answer is: During method overriding

Dynamic binding is used during method overriding. Method overriding is the process of redefining a method for the subclass that was already defined in the superclass. This allows the subclass to have its own unique implementation of the method, regardless of what was defined in the superclass. Option A, to access static methods, is incorrect as static methods are accessed using the class name, not through binding. Option B, while overloading methods, is incorrect as overloading refers to having multiple methods with the same name but different parameters in a class, not binding. Option D, upon using final methods, is incorrect as final methods cannot be overridden in a subclass, therefore dynamic binding is not used in this case.