The Evolution of a Programmer

[DP-NiSh]

The Evolution of a Programmer

High School/Jr.High

Code: Select all

10 PRINT "HELLO WORLD"
20 END


First year in College

Code: Select all

program Hello(input, output)
  begin
    writeln('Hello World')
  end.

Senior year in College

Code: Select all

(defun hello
  (print
    (cons 'Hello (list 'World))))

New professional

Code: Select all

#include <stdio.h>
void main(void)
{
  char *message[] = {"Hello ", "World"};
  int i;

  for(i = 0; i < 2; ++i)
    printf("%s", message[i]);
  printf("\n");
}

Seasoned professional

Code: Select all

#include <iostream.h>
#include < string.h>

class string
{
private:
  int size;
  char *ptr;

public:
  string() : size(0), ptr(new char('\0')) {}

  string(const string &s) : size( s.size)
  {
     ptr = new char[size + 1];
    strcpy(ptr, s.ptr);
  }

  ~string()
  {
    delete [] ptr;
  }

  friend ostream &operator <<(ostream &, const string &);
  string &operator=(const char *);
};

ostream &operator<<(ostream &stream, const string &s)
{
  return(stream << s.ptr);
}

string &string::operator=(const char *chrs)
{
  if (this != &chrs)
  {
    delete [] ptr;
   size = strlen(chrs);
    ptr = new char[size + 1];
    strcpy(ptr, chrs);
  }
  return(*this);
}

int main()
{
  string str;

  str = "Hello World";
  cout << str << endl;

  return(0);
}


Master Programmer

Code: Select all

[
uuid(2573F8F4-CFEE-101A-9A9F-00AA00342820)
]
library LHello
{
    // bring in the master library
    importlib("actimp.tlb");
    importlib("actexp.tlb");

    // bring in my interfaces
    #include " pshlo.idl"

    [
    uuid(2573F8F5-CFEE-101A-9A9F-00AA00342820)
    ]
    cotype THello
{
interface IHello;
interface IPersistFile;
};
};

[
exe,
uuid(2573F890-CFEE-101A-9A9F-00AA00342820)
]
module CHelloLib
{

    // some code related header files
    importheader(<windows.h>);
    importheader(<ole2.h>);
    importheader(<except.hxx>);
    importheader(" pshlo.h");
    importheader("shlo.hxx");
    importheader("mycls.hxx");

    // needed typelibs
    importlib("actimp.tlb");
    importlib("actexp.tlb");
    importlib("thlo.tlb");

    [
    uuid(2573F891-CFEE-101A-9A9F-00AA00342820),
    aggregatable
    ]
    coclass CHello
{
cotype THello;
};
};

#include "ipfix.hxx"

extern HANDLE hEvent;

class CHello : public CHelloBase
{
public:
    IPFIX(CLSID_CHello);

    CHello(IUnknown *pUnk);
    ~CHello();

    HRESULT  __stdcall PrintSz(LPWSTR pwszString);

private:
    static int cObjRef;
};

#include <windows.h>
#include <ole2.h>
#include <stdio.h>
#include <stdlib.h>
#include " thlo.h"
#include "pshlo.h"
#include "shlo.hxx"
#include "mycls.hxx"

int CHello::cObjRef = 0;

CHello::CHello(IUnknown *pUnk) : CHelloBase(pUnk)
{
    cObjRef++;
    return;
}

HRESULT  __stdcall  CHello::PrintSz(LPWSTR pwszString)
{
    printf("%ws\n", pwszString);
    return(ResultFromScode(S_OK));
}

CHello::~CHello(void)
{

// when the object count goes to zero, stop the server
cObjRef--;
if( cObjRef == 0 )
    PulseEvent(hEvent);

return;
}

#include <windows.h>
#include <ole2.h>
#include " pshlo.h"
#include " shlo.hxx"
#include "mycls.hxx"

HANDLE hEvent;

int _cdecl main(
int argc,
char * argv[]
) {
ULONG ulRef;
DWORD dwRegistration;
CHelloCF *pCF = new CHelloCF();

hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);

// Initialize the OLE libraries
CoInitializeEx(NULL, COINIT_MULTITHREADED);

CoRegisterClassObject(CLSID_CHello, pCF, CLSCTX_LOCAL_SERVER,
    REGCLS_MULTIPLEUSE, &dwRegistration);

// wait on an event to stop
WaitForSingleObject(hEvent, INFINITE);

// revoke and release the class object
CoRevokeClassObject(dwRegistration);
ulRef = pCF->Release();

// Tell OLE we are going away.
CoUninitialize();

return(0);
}

extern CLSID CLSID_CHello;
extern UUID LIBID_CHelloLib;

CLSID CLSID_CHello = { /* 2573F891-CFEE-101A-9A9F-00AA00342820 */
    0x2573F891,
    0xCFEE,
    0x101A,
    { 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
};

UUID LIBID_CHelloLib = { /* 2573F890-CFEE-101A-9A9F-00AA00342820 */
    0x2573F890,
    0xCFEE,
    0x101A,
    { 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
};

#include <windows.h>
#include < ole2.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include " pshlo.h"
#include "shlo.hxx"
#include "clsid.h"

int _cdecl main(
int argc,
char * argv[]
) {
HRESULT  hRslt;
IHello        *pHello;
ULONG  ulCnt;
IMoniker * pmk;
WCHAR  wcsT[_MAX_PATH];
WCHAR  wcsPath[2 * _MAX_PATH];

// get object path
wcsPath[0] = '\0';
wcsT[0] = '\0';
if( argc > 1) {
    mbstowcs(wcsPath, argv[1], strlen(argv[1]) + 1);
    wcsupr(wcsPath);
    }
else {
    fprintf(stderr, "Object path must be specified\n");
    return(1);
    }

// get print string
if(argc > 2)
    mbstowcs(wcsT, argv[2], strlen(argv[2]) + 1);
else
    wcscpy(wcsT, L"Hello World");

printf("Linking to object %ws\n", wcsPath);
printf("Text String %ws\n", wcsT);

// Initialize the OLE libraries
hRslt = CoInitializeEx(NULL, COINIT_MULTITHREADED);

if(SUCCEEDED(hRslt)) {

    hRslt = CreateFileMoniker(wcsPath, &pmk);
    if(SUCCEEDED(hRslt))
hRslt = BindMoniker(pmk, 0, IID_IHello, (void **)&pHello);

    if(SUCCEEDED(hRslt)) {

// print a string out
pHello->PrintSz(wcsT);

Sleep(2000);
ulCnt = pHello->Release();
}
    else
printf("Failure to connect, status: %lx", hRslt);

    // Tell OLE we are going away.
    CoUninitialize();
    }

return(0);
}

Believe it or not, all these give the same output "Hello World"

[Queen Rayquaza]

wwwwwwooooooowwwwwwwww!!!!!!!!!!............ thats interesting....

[Apoorv Upreti]

Hmmm................ i saw this over the net sumwhere but i cant remember ........
Anyways i didnt know that they all gave the same result

[DP-NiSh]

Lol yea... the last few programs were filled with unnecessary variables and declarations not necessary. U can still have that output in 4-5 lines of code in all the cases, unless u fill it up that way. The New Professional program was written in C language, whereas the other following in C++ which is an advanced version of C with different operational commands

[DP-NiSh]

*cough cough.... This is a hell lot more interesting lol..

List of Hello World Programs

.... looks interesting I'll see if I come across that assembly level lang program sumtime Lol, since I'm learning it..

[Queen Rayquaza]

wow... now dat souinds interesting...