Additional Notes
How would you explain a common mistake when using default methods in Java interfaces in an interview?
Track: Java
Topic: Core Java
Focus: Default Methods and Multiple Inheritance Rules
Java: Default Methods and Multiple Inheritance Rules
Answer
Assuming they behave like abstract methods.
A frequent mistake is thinking default methods are like abstract methods. In reality, default methods have implementations and can be directly called on an instance of a class. For example, if 'Discountable' interface has a default 'applyDiscount()', it can be called on any implementing class without additional coding.
A frequent mistake is thinking default methods are like abstract methods. In reality, default methods have implementations and can be directly called on an instance of a class. For example, if 'Discountable' interface has a default 'applyDiscount()', it can be called on any implementing class without additional coding.
Topics: Core Java Default Methods and Multiple Inheritance Rules Java