ok, this program has no errors and runs fine. My problem is that the second cal of getline doesn't seem to work. Does anyone know why it looks fine to me. Thanks for your time.

Code:#include <iostream> #include <string> #include <cmath> #define PI 3.141592654 using namespace std; class Column { public: Column(double l,double h,double w,double e, double i); Column(double l, double r, double e, double i); void print1() const; void print2() const; double get_length(); double get_elasticity(); double get_radius(); double get_height(); double get_width(); double get_moment_inertia(); double calc_gyr_circ(); double calc_gyr_rec(); double calc_rec_area(); double calc_circ_area(); private: double len; double rad; double hei; double wid; double el; double inertia; double rgyr_rec; double rgyr_circ; double factor; double area1; double area2; }; Column::Column(double l,double h,double w,double e, double i) { len = l; hei = h; wid = w; el = e; inertia = i; } Column::Column(double l, double r, double e, double i) { len = l; rad = r; el = e; inertia = i; } void Column::print1() const { cout<<"The following is the data for the Column:"<<endl; cout<<"Length = "<<len<<" mm"<<endl; cout<<"Width = "<<wid<<" mm"<<endl; cout<<"Heigth = "<<hei<<" mm"<<endl; cout<<"Moment of Inertia = "<<inertia<<" m^4"<<endl; cout<<"Cross-Sectional Area = "<<area1<<" m^2"<<endl; cout<<"Radius of Gyration = "<<rgyr_rec<<" m"<<endl; cout<<"Modulus of Elasticity = "<<el<<" GPa"<<endl; } void Column::print2() const { cout<<"The following is the data for the Column:"<<endl; cout<<"Length = "<<len<<" mm"<<endl; cout<<"Radius = "<<rad<<" mm"<<endl; cout<<"Cross-Sectional Area = "<<area2<<" m^2"<<endl; cout<<"Radius of Gyration = "<<rgyr_circ<<" m"<<endl; cout<<"Moment of Inertia = "<<inertia<<" mm^4"<<endl; cout<<"Modulus of Elasticity = "<<el<<" GPa"<<endl; } double Column::get_length() { return len; } double Column::get_width() { return wid; } double Column::get_radius() { return rad; } double Column::get_height() { return hei; } double Column::get_moment_inertia() { return inertia; } double Column::get_elasticity() { return el; } double Column::calc_rec_area() { area1 = (wid/1000) * (hei/1000); return area1; } double Column::calc_circ_area() { area2 = PI * pow((rad/1000),2); return area2; } double Column::calc_gyr_rec() { rgyr_rec = sqrt((inertia / area1)); return rgyr_rec; } double Column::calc_gyr_circ() { rgyr_circ = sqrt((inertia / area2)); return rgyr_circ; } int main() { double l,h,r,w,e,i,g,a,K; string choice; cout<<" Would You Like to Analyse a Beam or a Column ?"<<endl; cout<<"\t(Enter 1 for Beam, 2 for Column)"<<endl; getline(cin,choice); if (choice == "1") { cout<<"Not Done Yet"<<endl; } else if (choice == "2") { string answer, reply, result; cout<<"Does the Beam Have a Circular x-section or a Rectangular x-section ?"<<endl; cout<<"\t (Enter 'a' for Circular, 'b' for Rectangular)"<<endl; getline(cin,answer); if (answer == "a" || answer == "A") { cout<<"Enter the Length of the beam (mm): "; cin>>l; cout<<"Enter the Radius of the beam (mm): "; cin>>r; cout<<"Here are Your Choices for the End Conditions of The Column:"<<endl; cout<<"\t(1) Free - Fixed"<<endl<<"\t(2) Pinned - Pinned"<<endl<<"\t(3) Fixed - Pinned"<<endl; cout<<"\t(4) Fixed - Fixed"<<endl; cout<<"Choose the Corresponding Number for the Condition Used:"<<endl; getline(cin,result); if (result == "1") { K = 2; } else if (result == "2") { K = 1; } else if (result == "3") { K = 0.7; } else if (result == "4") { K = 0.5; } else { cout<<"You Have Not Entered a Corresponding Number Indicated."<<endl; return 0; } i = (PI/4)*pow((r/1000),4); cout<<"Here is a List of the Material Types that are Available:"<<endl; cout<<"\t(1) Steel"<<endl<<"\t(2) Aluminum"<<endl<<"\t(3) Brass"<<endl; cout<<"Choose a Material from the List above by Entering the Corresponding Number: "; getline(cin,reply); if(reply == "1") e = 200; else if(reply == "2") e = 70; else if(reply == "3") e = 105; else { cout<<"You Have Not Entered a Corresponding Number Indicated."<<endl; return 0; } Column circ(l,r,e,i); a = circ.calc_circ_area(); g = circ.calc_gyr_circ(); circ.print1(); cout<<"From the Data Inputted, the Following Results were Obtained:"<<endl; double crit_load = (pow(PI,2)*(e * 10e9)*(i))/ (pow(((l /1000)*K),2)); double crit_stress = (pow(PI,2)*(e * 10e9)/ (pow((((l /1000)*K)/g),2))) ; cout<<"\t Buckling Load = "<<crit_load<<" N"<<endl; cout<<"\t Buckling Stress = "<<crit_stress * 10e-06<<" MPa"<<endl; } else if (answer == "b" || answer == "B") { cout<<"Enter the Length of the beam (mm): "; cin>>l; cout<<"Enter the width of the beam (mm): "; cin>>w; cout<<"Enter the height of the beam (mm): "; cin>>h; cout<<"Here are Your Choices for the End Conditions of The Column:"<<endl; cout<<"\t(1) Free - Fixed"<<endl<<"\t(2) Pinned - Pinned"<<endl<<"\t(3) Fixed - Pinned"<<endl; cout<<"\t(4) Fixed - Fixed"<<endl; cout<<"Choose the Corresponding Number for the Condition Used:"<<endl; getline(cin,result); if (result == "1") { K = 2; } else if (result == "2") { K = 1; } else if (result == "3") { K = 0.7; } else if (result == "4") { K = 0.5; } else { cout<<"You Have Not Entered a Corresponding Number Indicated."<<endl; return 0; } i = ((w/1000)* pow((h/1000),3)) /12; cout<<"Here is a List of the Material Types that are Available:"<<endl; cout<<"\t(1) Steel"<<endl<<"\t(2) Aluminum"<<endl<<"\t(3) Brass"<<endl; cout<<"Choose a Material from the List above by Entering the Corresponding Number: "; getline(cin,reply); if(reply == "1") e = 200; else if(reply == "2") e = 70; else if(reply == "3") e = 105; else { cout<<"You Have Not Entered a Corresponding Number Indicated."<<endl; return 0; } Column rec(l,w,h,e,i); a = rec.calc_rec_area(); g = rec.calc_gyr_rec(); rec.print2(); cout<<"From the Data Inputted, the Following Results were Obtained:"<<endl; double crit_load = (pow(PI,2)*(e * 10e9)*(i))/ (pow(((l /1000)*K),2)); double crit_stress = (pow(PI,2)*(e * 10e9)/ (pow((((l /1000)*K)/g),2))); cout<<"\t Buckling Load = "<<crit_load<<" N"<<endl; cout<<"\t Buckling Stress = "<<crit_stress * 10e-06<<" MPa"<<endl; } else { cout<<"There is no Choice called "<<answer<<endl; return 0; } } else { cout<<"You Have not Entered a Proper Argument. Please Try Again."<<endl; return 0; } return 0; }