How to Create a Simple Program in C++

Ever wanted to program in C++? The best way to learn is by looking at examples. Take a look at the basic C++ programming outline to learn about the structure of a C++ program, then create a simple program on your own.

Steps

1

Get a compiler and/or IDE. Three good choices are GCC, or if your computer is running Windows, Visual Studio Express Edition or Dev-C++.

2

Try some example programs. Copy and paste the following into a text/code editor:

• A simple program is given by Bjarne Stroustrup (developer of C++) to check your compiler: 

• #include <iostream>
  #include <string> 
  using namespace std; 
  int main () 
  {
          string s;
          cout<<"Your Name \n";
          cin>>s;
          cout << "Hello, " << s << '\n' ;
          return 0;
  }
  

• A program for finding the sum of two numbers:   

• #include <iostream>
  using namespace std; 
  int main () 
  {
          int no1, no2, sum; 
          cout << "\nEnter the first number = " ; 
          cin >> no1 ;
          cout << "\nEnter the second number = " ;
          cin >> no2 ; 
          sum = no1 + no2 ;
          cout << "\nThe sum of "<< no1 <<" and "<< no2 <<" = "<< sum <<'\n' ;
          return 0 ;
  }
  

• A program for finding the product in multiplication problems: 

• #include <iostream>
  int main()
  {
          int v1, v2, range;
          std::cout <<"Please input two numbers:"<< std::endl;
          std::cin >> v1 >> v2;
          if (v1<=v2)
          {
          range=v2-v1;
  } else {
          range=v1-v2;    
  }
  std::cout <<"range = " << range << std::endl;
  return 0;
  }
  

• A program for finding the value of exponents:

#include <iostream>
using namespace std;
int main()
{
        int value, pow, result=1;
        cout << "Please enter operand:" << endl;
        cin >> value; #cout << "Please enter exponent:" << endl;
        cin >> pow;
        for (int cnt=0; cnt!=pow; cnt++)
        result*=value;
        cout << value << " to the power of " << pow << " is: " << result << endl;
        return 0;
}

3

Save this as a .cpp file with a name that accurately reflects your program.Don't confuse there are many other extensions for C++ files, choose any of them (like *.cc, *.cxx, *.c++, *.cp) .

• HINT': It should say Save as Type: {select "All Files"}

4

Compile it. For users of linux and gcc compiler, use Command : g++ sum.cpp. Users of Window can use any C++ compiler, such as MS Visual C++,Dev-C++ or any other preferred program.

5

Run the program. For users of Linux and gcc compiler Command : ./a.out (a.out is an executable file produce by compiler after compilation of program.)

Source : http://www.wikihow.com/

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انا اسمي محمد الراوي مدون مغربي لدي خبرة في تدوين وتصميم وبرمجة ثلاث سنين اطمح الوصل الي القمة وارضاء زواري وكل متتابعين