Multiple Inheritance	Strings	Initialization of a New Object	Virtual Functions	Cross-Platform Compatibility	Speed	Size of Apps	Type-Checking	UI	Crashes System (Dumps Core)	Programming Environment
Smalltalk	Does not provide	Yes	initialize method	Always virtual	Yes	okay (byte code, compiled to native on the fly)	BIG	None	Good, easy-to-use UI	Very rare	Wonderful
C++	Yes, with levels of protection: public, private and protected	No, but available in class library	constructor	Available if declared	Less than you might think	ZOOM! (Native code)	Small	Strongly typed	None-standard, platform-dependent	All the time!	Depends on implementation
Java	Does not provide	Yes	constructor	Always	Theoretically, but still buggy practically	Not so Zoom! (Byte code, currently not compiled on-the-fly to native)	Okay, small for applets	Strongly typed	Cross-platform, complex, buggy	Like Smalltalk	Depends on implementation
Python	Yes, no protection	Yes	__init__	Always	No problems so-far	Glacial (byte code)	Okay	No typing	Multiple choices: Tk, Motif, etc. Some cross-platform	Like Smalltalk	The Pits