How to concatenate string and Upper case in Axapta

To concatenate string and Upper case in Axapta you can try below code

   str a = 'test',b = 'car',d1 = 'speed';  
   str c;  
   str d,e;  
   ;  
   c = a + b + d1;  
   d = curext();  
   info(c);  
   info(strUpr(d));