ITC C209 Final Term Quiz 1

Which statement best reflects the concept of inheritance introduced in this section?

• Specialized objects are unrelated to general objects.

• Specialized objects are versions of more general objects found in the real world.

• General objects are always more complex than specialized objects.

• Inheritance only applies to physical size differences.

Which option correctly pairs a specialized object with its more general object according to the concept of inheritance?

• Bee → Animal

• Grasshopper → Insect

• Dalmatian → Mammal

• Chihuahua → Reptile

Consider the labeled grasshopper diagram. Which reasoning best explains how inheritance helps organize its features?

• Inheritance lists every body part of any organism.

• Inheritance lets the grasshopper inherit common insect traits (head, thorax, abdomen, wings) while adding its own specifics.

• Inheritance removes differences between insects.

• Inheritance applies only to mammals, not insects.

Which statement best defines the "Is a" relationship in inheritance?

• A relationship where two objects share no characteristics

• A relationship indicating one object is a specialized version of another

• A relationship where objects are unrelated but interact

• A relationship that only applies to methods, not classes

Select the example that illustrates an "Is a" relationship.

• A car has wheels

• A Great Dane is a dog

• A flower needs sunlight

• An insect eats plants

In an "Is a" relationship, what does the specialized object inherit from the general object?

• Only its name

• All characteristics of the general object

• None of its characteristics

• Only private data fields

Which statement correctly applies the concept to Java?

• Inheritance in Java creates a "has a" relationship among classes

• Inheritance in Java is used only for code duplication

• Inheritance in Java can create an "is a" relationship among classes

• Inheritance in Java cannot extend class capabilities

In Java, why might you create a subclass that extends a class?

• To remove all methods from the superclass

• To create an unrelated class

• To build a specialized version of the class with extended capabilities

• To convert the class into an interface

In Java, extending a class primarily serves to:

• Reduce its visibility to private

• Create a specialized class that inherits and possibly adds features

• Delete inherited methods

• Prevent polymorphism

In Java, which keyword is used in the class header to indicate that one class is a subclass of another?

• implements

• extends

• inherits

• super