Exam 9: Object Oriented Programming: Inheritance

When a subclass constructor calls its superclass constructor,what happens if the superclass's constructor does not assign a value to an instance variable?

When overriding a superclass method and calling the superclass version from the subclass method,failure to prefix the superclass method name with the keyword super and a dot (.)in the superclass method call causes ________.

Which of the following is not a superclass/subclass relationship?

Private fields of a superclass can be accessed in a subclass

Superclass methods with this level of access cannot be called from subclasses.

Class ________ represents an image that can be displayed on a JLabel.

An advantage of inheritance is that:

Overriding a method differs from overloading a method because:

Inheritance is also known as the

To avoid duplicating code,use ________,rather than ________.

Which of the following keywords allows a subclass to access a superclass method even when the subclass has overridden the superclass method?

Which of the following statements is false?

The default equals implementation of class Object determines:

Which method changes the text the label displays?

Every class in Java,except ________,extends an existing class.

The default implementation of method clone of Object performs a ________.

Using the protected keyword also gives a member:

Which of the following statements is false?

Which of the following is the superclass constructor call syntax?

Which superclass members are inherited by all subclasses of that superclass?