Saturday, September 20, 2014

C++ Tutorial for Beginners 37 - C++ Exception Handling (Try Throw Catch)















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#include <iostream>
#include<string>
#include <exception>
using namespace std;

int main()
{
 try{
   std::cout<<"Please enter age"<<std::endl;
   int age=0;
   std::cin>>age;
   if(age>100 || age<0)
   {
       throw 'a';
   }
 }
 catch(int e)
 {
     std::cout<<"Error No="<<e<<std::endl;
 }
  catch(char e)
 {
     std::cout<<"Error Char="<<e<<std::endl;
 }
  catch(...)
 {
     std::cout<<"Unknown Exception"<<std::endl;
 }
}












--------------------------------------------------------------------

c++ throw exception example

rethrow exception c++ example

Try and Catch

c++ custom exception example

c++ exception inheritance example

Saturday, September 13, 2014

C++ Tutorial for Beginners 35 - Introduction to Polymorphism in C++




















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#include <iostream>
#include<string>
using namespace std;
class shape
{
   public:
    void setValues(int a ,int b){
     width=a;
     height=b;
    }
    protected:
    int height ;
    int width;
};
class rectangle : public shape
{
   public:
       int area(){
         return (height * width);
       }
};
class triangle : public shape
{
   public:
       int area(){
         return (height * width/2);
       }
};

int main()
{
    rectangle rec;
    triangle tri;
    shape *poly1=&rec;
    shape *poly2=&tri;
    poly1->setValues(10,20);
    poly2->setValues(10,20);

    std::cout<<rec.area()<<std::endl;
    std::cout<<tri.area()<<std::endl;
}












-------------------------------------------------------

Verwandte Suchanfragen zu polymorphism c++

c++ polymorphismus

polymorphismus c++ beispiel

c++ virtual

c++ virtual function

polymorph c++

c++ pure virtual

c++ tutorial virtual

c++ virtual function 0

C++ Tutorial for Beginners 35 - Introduction to Polymorphism in C++




















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#include <iostream>
#include<string>
using namespace std;
class shape
{
   public:
    void setValues(int a ,int b){
     width=a;
     height=b;
    }
    protected:
    int height ;
    int width;
};
class rectangle : public shape
{
   public:
       int area(){
         return (height * width);
       }
};
class triangle : public shape
{
   public:
       int area(){
         return (height * width/2);
       }
};

int main()
{
    rectangle rec;
    triangle tri;
    shape *poly1=&rec;
    shape *poly2=&tri;
    poly1->setValues(10,20);
    poly2->setValues(10,20);

    std::cout<<rec.area()<<std::endl;
    std::cout<<tri.area()<<std::endl;
}












-------------------------------------------------------

Verwandte Suchanfragen zu polymorphism c++

c++ polymorphismus

polymorphismus c++ beispiel

c++ virtual

c++ virtual function

polymorph c++

c++ pure virtual

c++ tutorial virtual

c++ virtual function 0

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