C and C++

C is considered by many to be the worldwide standard programming language. Designed by Bell Labs, it is a high-level compiled language that is used for programming on a variety of platforms. C++, introduced in 1981, is an extension of C and is replacing it as the most popular programming language. Programs written in C++ are efficient and fast, and the language isn't too difficult to learn. It's important to note that a C/C++ program will only run on the class of processor it was compiled on. In other words, you cannot run a program compiled on an Intel 486 chip on a Power PC system. However, because C++ has no specifically built-in input/output statements, code can be easily ported from system to system. ANSI C is also the language exploits are most frequently coded in.

ANSI C "Hello World" Program

      /* Prints "Hello World" to the screen /*
 	#include <stdio.h>
	main()
	{
    	printf("Hello World\n");
    	return 0;
	} 

C++ Windows "Hello World" Program

      // hello.cpp
      // Creates a window with the title "Hello World"
	#include <afxwin.h>

	class CMainWindow : public CFrameWnd {
	public:
 	  CMainWindow() { Create(NULL,"Hello World!"); }
	};

	class CHelloApp : public CWinApp {
	public:
 	  virtual BOOL InitInstance() {
       	  m_pMainWnd = new CMainWindow();
           	  m_pMainWnd->ShowWindow(m_nCmdShow);
       	  m_pMainWnd->UpdateWindow();
       	  return TRUE;
  	 }
	};

	CHelloApp HelloApp;  // HelloApp's constructor initializes and runs the app