$1.$ What will the following program display on the screen?

#include

Using namespace std;

class Package

$\{$

private:

$$ int value;

public:

$$ Package$()$

$\{$ value $=7$; cout $<<$ value $<<$ endl; $\}$

$$ Package$($int v$)$

$\{$ value $=$ v; cout $<<$ value $<<$ endl; $\}$

$$ ~Package$()$

$\{$ cout $<<$ value $<<$ endl; $\}$

$\}$;

int main$()$

$\{$

$$ Package obj$1(4)$;

$$ Package obj$2$;

$$ Package obj$3(2)$;

$$ return $0$;

$\}$