Simple C++ code examples.

[soulJAHmon]

http://www.youtube.com/watch?v=KP9GmIKefL8

[LA_Kings_Fan]

http://www.youtube.com/watch?v=KP9GmIKefL8

 

[RedBaird]

I am not familiar with C or C++, but I can only see loops in the code-sets that used the while statements.

[Heretic121]

Okay here I was going for the loop, but after entering either y or n it closes the program. Hmmph!

#include <iostream>

int main()
{

    float Num1;
    float Num2;
    float Answer;

    int which_calculation;

    char again = 'y';

    { // here
        std::cout << "Press 1 to add.\n";
        std::cin >> which_calculation;

        std::cout << "Please enter your first number.\n";
        std::cin >> Num1;
        std::cout << "Please enter your second number.\n";
        std::cin >> Num2;
    } // Here
        if (which_calculation == 1)
        {
            Answer = Num1 + Num2;
        }

    std::cout << "The answer is ...\n";
    std::cout << Answer << std::endl;

    if (again == 'y')
    {
        std::cout << "again (y/n)?";
        std::cin >> again;
    }
}

 

 

The lines I'm talking about have "// here" after them.

 

I just noticed... where's your "return 0;" line?

Edited March 22, 2014 by Heretic121

[Midnight]

No where. It would close one way or another, so I just assumed that it was there. I'll play with this hopefully tomorrow. Busy next couple of weeks.

[parrot]

#include <iostream>




int main()


{


  int input = 0;


  int iterator = -1;




  do


  {


    iterator++;


    std::cout << "Enter a number that's not " << iterator << " please";


    std::cout << std::endl;


    std::cin >> input;


    if (iterator == 10)


    {


      std::cout << std::endl;


      std::cout << "Wow, you're more patient then I am, you win.";


      return 0;


    }


  }while(input != iterator);


  std::cout << std::endl;


  std::cout << "Hey! you weren't supposed to enter " << iterator << "!";


  return 0;


}

 

[rtcwet]

#include <iostream>


using namespace std;


class Rectangle{

  public:

    int getArea();

    Rectangle(int, int);

  private:

    int height;

    int length;

};


Rectangle::Rectangle(int length, int height){

  this->length = length;

  this->height = height;

}


int Rectangle::getArea(void){

  return length * height;

}




int main(int argc, char* argv[]){

  int length;

  cout << "Enter length: " << endl;

  cin >> length;


  int height;

  cout << "Enter height: " << endl;

  cin >> height;


  Rectangle rectangle(length, height);

  cout << "The area of the rectangle is: " << rectangle.getArea() << endl;

  return 0;

}

[rtcwet]

#include <iostream>


using namespace std;


class A{

  public:

    string displayMsg(void);

};


class B: public A{

};


string A::displayMsg(void){

  return "A message from class A";

}


int main(int argc, char* argv[]){

  B b;

  cout << b.displayMsg() << endl;

  return 0;

}

[rtcwet]

One of the most interesting things about OOP is Polymorphism. It allows an object to take on many forms. It's similar to the example above, involving class inheritance. Both C++ and Java implement this technique well. Tell me if you like to know more. I'll post some code.