JAVA PROGRAMMING EXAM BSAIT 1-2

What is inheritance in Java?

• A mechanism where one object modifies properties and behaviors of a parent object

• A mechanism where one object creates properties and behaviors of a parent object

• A mechanism where one object loses properties and behaviors of a parent object

• A mechanism where one object acquires properties and behaviors of a parent object

What does the 'extends' keyword indicate in Java?

• Creating a new class that is a copy of an existing class

• Creating a new class that replaces an existing class

• Creating a new class that is unrelated to any existing class

• Creating a new class that derives from an existing class

What is the superclass in Java inheritance?

• The class being inherited from

• A class that is a copy of another class

• The class that inherits from another class

• A class that is unrelated to any other class

What types of inheritance are supported in Java?

• Single, hybrid, and hierarchical

• Single, multiple, and hybrid

• Single, multilevel, and hierarchical

• Single, multilevel, and hybrid

What is the relationship between Programmer and Employee classes?

• Programmer IS - A Employee

• Programmer IS - NOT A Employee

• Programmer IS - EQUAL TO Employee

• Programmer IS - LIKE A Employee

What is an example of single inheritance in Java?

• Dog class inherits the Cat class

• Cat class inherits the Dog class

• Dog class inherits the Animal class

• Animal class inherits the Dog class

What is an example of multilevel inheritance in Java?

• BabyDog class inherits the Dog class which inherits the Animal class

• Dog class inherits the Animal class

• Cat class inherits the Animal class

• Animal class inherits the Dog class

What is an example of hierarchical inheritance in Java?

• Dog and Cat classes inherit the Animal class

• Dog class inherits the Animal class

• Cat class inherits the Animal class

• Animal class inherits the Dog and Cat classes

How is multiple and hybrid inheritance supported in Java?

• Through inheritance only

• Through interface only

• Through classes only

• Through abstract classes only

What does the 'extends' keyword do in Java inheritance?

• Changes the functionality of a class

• Does not affect the functionality of a class

• Decreases the functionality of a class

• Increases the functionality of a class