A) #include using namespace std; class DumbBell; { int weight; public: void setWeight(int); }; void setWeight(int w) { weight = w; } int main() { DumBell bar; DumbBell.setWeight(200); cout return...

A) #include

using namespace std;

class DumbBell;

{

int weight;

public:

void setWeight(int);

};

void setWeight(int w)

{ weight = w; }

int main()

{

DumBell bar;

DumbBell.setWeight(200);

cout <><>

return 0;

}

B) class Change

{

private:

int pennies;

int nickels;

int dimes;

int quarters;

Change()

{ pennies = nickels = dimes = quarters = 0; }

Change(int p = 100, int n = 50, d = 50, q = 25);

};

void Change::Change(int p, int n, d, q)

{

pennies = p;

nickels = n;

dimes = d;

quarters = q;

}