subclass and superclass are also known as

parent and child classes respectively.

True

False

We cannot have attributes and methods overridden$/$modified when using the modifier "final"

True

False

What is the output of the following program?

$01$: class Mammal $\{$

$02$: private void sneeze $)\{\}$

$03$: public Mammal $($int age$)\{$

$04$: $,$ System.out.print$("$Mammal$")$;

$05$: $\}$

$06$: public class Platypus extends Mammal $\{$

$07$: int sneeze$()\{$ return $1$ ; $\}$

$08$: public Platypus$()\{$

$09$: $,$ System.out.print$("$Platypus$")$;

$10$: $\}$

$11$: public static void main$($String $$ args$)\{$

$12$: $,$ new Mammal$(5)$;

$13$: $\}\}$

Platypus

Mammal

PlatypusMammal

MammalPlatypus

Platypus class inherits from Mammal class, so Platypus should have a constructor that pass in exact one integer argument

Platypus class inherits from Mammal class, so we must define an implicit super constructor Mammal between the line $8$ and $9.$ For example,

add the line super$($ANY$\_$INTEGER$)$; to have it fixed

Which of the following complete the constructor so that this code prints out $50?$

$01$: class Speedster $\{$

$02$: int numSpots;

$03$: $\}$

$04$: public class Cheetah extends Speedster $\{$

$05$: int numSpots;

$06$: public Cheetah$($int numSpots$)\{$

$07$: $//$ INSERT CODE HERE

$08$: $\}$

$09$: public static void main$($String $$ args$)\{$

$10$: $,$ Speedster $s=$ new Cheetah$(50)$;

$11$: $,$ System. out.print$($s$.$numSpots$)$;

$12$: $\}$

$13$: