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<html><table class="inline">

<tr><th>Property</th> <th>C++</th> <th>Java</th> <th>PHP</th></tr>
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<tr>
  <th></th> 
  <td></td>     
  <td></td>    
  <td></td>  
</tr>
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<tr>
  <td>First command line argument</td> 
  <td></td>     
  <td></td>    
  <td>$_SERVER['argv'][1]</td>  
</tr>
<tr>
  <td>Default 'passing to function' behaviour</td> 
  <td>by value</td>     
  <td>primitives by value, objects by reference</td>    
  <td>by value, is this also true for objects in php5?</td>  
</tr>
<tr>
  <td>default function arguments</td> 
  <td>YES</td>     
  <td>since JDK1.5 ?</td>    
  <td>YES, in php4 not for references</td>  
</tr>
<tr>
  <td>String comparing</td> 
  <td></td>     
  <td></td>    
  <td>if ('willi' == $anotherString) ...</td>  
</tr>
<tr>
  <td>global variables & functions,</td> 
  <td>YES</td>     
  <td>only through static class members</td>    
  <td>YES</td>  
</tr>
<tr>
  <td>preprocessor</td> 
  <td>YES</td>     
  <td>NO</td>    
  <td>NO</td>  
</tr>
<tr>
  <td>structures</td> 
  <td>YES</td>     
  <td>NO</td>    
  <td>?</td>  
</tr>
<tr>
  <td>unions</td> 
  <td>YES</td>     
  <td>NO</td>    
  <td>?</td>  
</tr>
<tr>
  <td>bitfields</td> 
  <td>YES</td>     
  <td>NO</td>    
  <td>?</td>  
</tr>
<tr>
  <td>typedef</td> 
  <td>YES</td>     
  <td>NO</td>    
  <td>NO?</td>  
</tr>
<tr>
  <td>mulitple inheritance</td> 
  <td>YES</td>     
  <td>with interfaces & delegation</td>    
  <td>?</td>  
</tr>
<tr>
  <td>operator overloading</td> 
  <td>YES</td>     
  <td>NO (Exception: + in String)</td>    
  <td>NO?</td>  
</tr>
<tr>
  <td>pointers</td> 
  <td>YES</td>     
  <td>NO</td>    
  <td>NO</td>  
</tr>
<tr>
  <td>forced exception handling</td> 
  <td>NO</td>     
  <td>YES</td>    
  <td>?</td>  
</tr>
<tr>
  <td>Threads</td> 
  <td>with additional librarys</td>    
  <td>NO</td>
  <td>?</td>
</tr>
<tr>
  <td>Index checking in arrays</td> 
  <td>NO</td>     
  <td>YES</td>    
  <td>YES?</td>  
</tr>
<tr>
  <td>Arrays can grow</td> 
  <td>NO, use container</td>     
  <td>NO, use container</td>    
  <td>YES</td>  
</tr>
<tr>
  <td>garbage collection</td> 
  <td>manual</td>     
  <td>automatic</td>    
  <td>automatic</td>  
</tr>

</table></html>

See also [[http://www.dmh2000.com/cjpr/|C++ vs Java vs Python vs Ruby : a first impression]]

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