A Michael F. Schwartz 

T Resource Discovery and Privacy 

J Internet Society News 

V 2 

N 1 

D Spring 1993 

P 16-18 

K University of Colorado - Boulder 
X N-2-1-040.31.1 
K RD, ISOC, WP, X.500, Netfind, WAIS, Gopher, KIS, WHOIS, CSO,
PH, 411, UIUC, da 
X Available from
ftp:ftp.cs.colorado.edupubcstechreportsschwartzISOC.NewsRD.and.Privacy.ps.Z or
ftp:ftp.cs.colorado.edupubcstechreportsschwartzISOC.NewsRD.and.Privacy.txt.Z
A Robert Henderson 
A Benjamin Zorn 

T A Comparison of Object-Oriented Programming in Four Modern
Languages 

I Department of Computer Science, University of Colorado,
Boulder, Colorado 

R Technical Report CU-CS-641-93 

K object-oriented programming, self, modula-3, sather, oberon 

X Available by anonymous FTP and e-mail from ftp.cs.colorado.edu
in the
   file pubcstechreportszornCU-CS-641-93.ps.Z 

X "The paper evaluates Oberon, Modula-3, Sather, and Self in the
context of object-oriented programming.  While each of these
programming languages provide support for classes with
inheritance, dynamic dispatch, code reuse, and information
hiding, they do so in very different ways and with varying levels
of efficiency and simplicity.  A single application was coded in
each language and the experience gained forms the foundation on
which the subjective critique is based.  By comparing the actual
run-times of the various implementations it is also possible to
present an objective analysis of the efficiency of the languages.
Furthermore, by coding the application using both explicit
dynamic dispatch and static method binding, it is possible to
evaluate the cost of dynamic dispatch in each language.  The
application was also coded in C++, thereby providing a well-known
baseline against which the execution times can be compared.