Podcast
Questions and Answers
What does inheritance create in object-oriented programming?
What does inheritance create in object-oriented programming?
- A 'uses a' relationship among classes
- A 'has a' relationship among classes
- A 'is a' relationship among classes (correct)
- A 'belongs to' relationship among classes
What kind of characteristics does a specialized object have in relation to the general object?
What kind of characteristics does a specialized object have in relation to the general object?
- Subset of the characteristics of the general object
- Opposite characteristics
- Similar characteristics
- All of the characteristics of the general object, plus additional special characteristics (correct)
Which term best describes the relationship between a post graduate student and a student?
Which term best describes the relationship between a post graduate student and a student?
- Generalization
- Specialization (correct)
- Aggregation
- Encapsulation
What term describes the relationship between an employee and a person?
What term describes the relationship between an employee and a person?
Which relationship can be extended through inheritance in object-oriented programming?
Which relationship can be extended through inheritance in object-oriented programming?
What is the purpose of inheritance in object-oriented programming?
What is the purpose of inheritance in object-oriented programming?
What is the term used for the relationship between a superclass and a subclass?
What is the term used for the relationship between a superclass and a subclass?
Which keyword is used in Java to define a subclass?
Which keyword is used in Java to define a subclass?
What happens to private members of the superclass in a subclass?
What happens to private members of the superclass in a subclass?
Which keyword refers to an object's superclass in Java?
Which keyword refers to an object's superclass in Java?
When a subclass is instantiated, which constructor is executed first?
When a subclass is instantiated, which constructor is executed first?
What must be the first Java statement in a subclass constructor when calling a superclass constructor?
What must be the first Java statement in a subclass constructor when calling a superclass constructor?
What is it called when a subclass method has the same signature as a superclass method?
What is it called when a subclass method has the same signature as a superclass method?
Which annotation should be used before a subclass method declaration to indicate method overriding?
Which annotation should be used before a subclass method declaration to indicate method overriding?
In a Salaried Employee class, how can the get_salary() method be modified to override the superclass method?
In a Salaried Employee class, how can the get_salary() method be modified to override the superclass method?
What happens to constructors when a subclass is instantiated?
What happens to constructors when a subclass is instantiated?
