Podcast
Questions and Answers
What is the purpose of the dispContact() method in the Person class?
What is the purpose of the dispContact() method in the Person class?
- To set the contact information of a `Person` object
- To get the contact information of a `Person` object
- To print the contact information of a `Person` object (correct)
- To delete the contact information of a `Person` object
Which of the following is a correct statement about the visibility of class members in Java inheritance?
Which of the following is a correct statement about the visibility of class members in Java inheritance?
- Public class members are not accessible by subclasses
- Private class members are accessible by subclasses
- Protected class members are accessible by subclasses (correct)
- Default class members are accessible by subclasses
What is the relationship between the Person, Employee, and Customer classes in the given code?
What is the relationship between the Person, Employee, and Customer classes in the given code?
- The `Employee` and `Customer` classes inherit from the `Person` class (correct)
- The `Person` class inherits from the `Employee` and `Customer` classes
- The `Employee` and `Customer` classes are independent of the `Person` class
- The `Employee` class inherits from the `Customer` class, and both inherit from the `Person` class
What is the purpose of the empID and designation fields in the Employee class?
What is the purpose of the empID and designation fields in the Employee class?
What is the purpose of the customerID and invoiceNo fields in the Customer class?
What is the purpose of the customerID and invoiceNo fields in the Customer class?
What is the significance of the statement 'OOP Java is the easiest, scoring and my favorite subject' in the given text?
What is the significance of the statement 'OOP Java is the easiest, scoring and my favorite subject' in the given text?
What does polymorphism refer to in object-oriented programming?
What does polymorphism refer to in object-oriented programming?
Which access modifier allows a class to be accessed from anywhere?
Which access modifier allows a class to be accessed from anywhere?
Why is multiple and hybrid inheritance not supported in Java?
Why is multiple and hybrid inheritance not supported in Java?
What is the superclass of every other class in Java?
What is the superclass of every other class in Java?
Can a class extend more than one class in Java?
Can a class extend more than one class in Java?
What does the term 'Polymorphism' mean in object-oriented programming?
What does the term 'Polymorphism' mean in object-oriented programming?
What is the purpose of the r variable in the code snippet?
What is the purpose of the r variable in the code snippet?
What is the output of the code snippet?
What is the output of the code snippet?
What is the purpose of the if statement in the MyProg class?
What is the purpose of the if statement in the MyProg class?
What is the purpose of the type() method in the Game class and its subclasses?
What is the purpose of the type() method in the Game class and its subclasses?
What is the relationship between the Game class and its subclasses?
What is the relationship between the Game class and its subclasses?
What is the purpose of the Scanner object in the MyProg class?
What is the purpose of the Scanner object in the MyProg class?
Which type of polymorphism is achieved through method overloading in Java?
Which type of polymorphism is achieved through method overloading in Java?
In method overriding, what relationship must exist between the classes containing the overridden method?
In method overriding, what relationship must exist between the classes containing the overridden method?
What is the main advantage of dynamic method dispatch in Java?
What is the main advantage of dynamic method dispatch in Java?
Which type of polymorphism is associated with dynamic method dispatch in Java?
Which type of polymorphism is associated with dynamic method dispatch in Java?
How does method overloading differ from method overriding?
How does method overloading differ from method overriding?
Why does Java prohibit assigning a parent class object reference to a child class object directly?
Why does Java prohibit assigning a parent class object reference to a child class object directly?
What is the purpose of the VehicleInterface in the given code?
What is the purpose of the VehicleInterface in the given code?
What is the significance of the implements keyword in the CarClass declaration?
What is the significance of the implements keyword in the CarClass declaration?
What is the purpose of the line VehicleInterface CarClass c = new CarClass(); in the DemoInterface class?
What is the purpose of the line VehicleInterface CarClass c = new CarClass(); in the DemoInterface class?
What is the purpose of the final keyword in the declaration int a = 10; within the VehicleInterface?
What is the purpose of the final keyword in the declaration int a = 10; within the VehicleInterface?
What is the output of the given code?
What is the output of the given code?
Which statement is true about methods declared in an interface?
Which statement is true about methods declared in an interface?
