Can you explain what the following code means? I am confused about IntLinkedList destructor and the Prepend functions specifically. This was done using C$++.$

The output for the following code is

$8$

$5$

$4$

$1$

end of list

#include

using namespace std;

class IntNode $\{$

public:

IntNode$($int value$)\{$

numVal $=$ value;

$\}$

~IntNode$()\{$

cout $<<$ numVal $<<$ endl;

$\}$

int numVal;

IntNode$*$ next;

$\}$;

class IntLinkedList $\{$

public:

IntLinkedList$()$;

~IntLinkedList$()$;

void Prepend$($int$)$;

IntNode$*$ head;

$\}$;

IntLinkedList::IntLinkedList$()\{$

head $=$ nullptr;

$\}$

IntLinkedList::~IntLinkedList$()\{$

while $($head$)\{$

IntNode$*$ next $=$ head$->$next;

delete head;

head $=$ next;

$\}$

cout $<<$ "end of list" $<<$ endl;

$\}$

void IntLinkedList::Prepend$($int dataValue$)\{$

IntNode$*$ newNode $=$ new IntNode$($dataValue$)$;

newNode$->$next $=$ head;

head $=$ newNode;

$\}$

int main$()\{$

IntLinkedList$*$ list $=$ new IntLinkedList$()$;

list$->$Prepend$(1)$;

list$->$Prepend$(4)$;

list$->$Prepend$(5)$;

list$->$Prepesnd$(8)$;

delete list;

return $0$;

$\}$