C++ Programming: A Practical Approach

Exception Handling: Show Must Go On! 343

try

{

if(height <=0 )

throw exception();

}

catch(exception & e)

{

cout<<"Enter correct height"<<endl;

cout<<"Earlier value of height is:"<<this->height<<endl;

cin>>this->height;

}

}

void DeterminePurity()

{

fl oat v,d;

v=getVolume();

d=getDensity(v);

if(d==accurate_density)

cout<<"Metal "<< metalType<<" is pure."<<endl;

else

cout<<"Metal "<< metalType<<" is not pure."<<endl;

}

};

int main()

{

CuboidMetal c1("Silver",0,9.5,2.8,2793,10.5);

CuboidMetal c2("Gold",7.1,5.8,9.1,7103,19.3);

CuboidMetal c3("Platinum",10,9.5,2.8,5400,21.4);

MetalShape* ptr[3]={&c1,&c2,&c3 };

for(int i=0;i<3;i++)

ptr[i]->DeterminePurity(); ...