Project 6 - Object oriented languages

JAVA, C++, Python, Object-C, Delphi, and Ruby

JAVA's Key Characteristics:

• Platform Independent - programs written in Java can be run on any machine with JVM (Java Virtual Machine)
• Simple - does not use pointers explicitly, harder to write a program in Java that crash the system, strong memory management and automatic memory allocation and deallocation
• Robust - exception handling and type checking mechanisms, compiler checks the program whether there any error and interpreter checks any run time error and makes the system secure from crash.
• Multithreaded
• Interpreted
• Architecture neutral
• Fewer low-level facilities and simpler object model than C/C++

(source : Wikipedia)

C++'s Key Characteristics:

• Statically typed
• Free-form
• Multi-paradigm
• Compiled
• General-purpose
• Comprised of both high-level and low-level language features
• Designed to support multiple programming styles (Procedural, data abstraction, OOP, generic)

(source: Wikipedia)

Python's Key Characteristics:

• very clear, readable syntax
• strong introspection capabilities
• intuitive object orientation
• natural expression of procedural code
• full modularity, supporting hierarchical packages
• exception-based error handling
• very high level dynamic data types
• extensive standard libraries and third party modules for virtually every task
• extensions and modules easily written in C, C++ (or Java for Jython, or .NET languages for IronPython)
• embeddable within applications as a scripting interface

(source: Python main page)

Object-C's Key Characteristics:

• Reflective
• Adds Smalltalk-style messaging to C
• Used primarily on Mac OS X and iOS
• Programming paradigms: OO, dynamic typing and reflection
• Supports reflective features

Delphi's Key Characteristics:

• Rapid Application Development tool for Windows
• Easy to create forms based applications for Windows
• Easy to pick up
• Hundreds of thousands of third-party components
• No runtime is needed (unlike other RAD tools)
• The core of Delphi is its Object Pascal compiler

(Source: Delphi wiki)

Ruby's Key Characteristics:

• Dynamic and duck typing
• Reflective
• General-purpose
• combines syntax of Perl and Smalltalk
• Supports functional, oo, imperative and reflective programming paradigms
• Interpreted
• Succinct and flexible syntax
• Exception handling
• Implemented on all major systems

(source: Wikipedia)

Many of these languages share core elements in common, for instance Ruby, Python and Java all use exception based error handling. Ruby, Object-C, and C++ were all designed with the usage of multiple paradigms in mind. Ruby, Java, Python, and C++ were all built with multiple platform OSes in mind, however, Delphi was purpose built for Windows and Object-C was purpose built for Mac OS X.