Comparison of C# and Java for testers

was talking with few test professionals for C# automation. Team is reluctant to change from Java background to C# technologies. I have used many scripting and programming languages. There is not much variation between Java & C# at core langulage level.

Differences and similarities

Description	Java	C#
Program Entry Point	main(String ...args)	Main() or Main(string [] args)
Smallest Deployment Unit	Jar	EXE/DLL, Private Assembly, Shared Assembly
Signing	Jar Signing	Assembly Signing
Namespace	package	namespace
Including Classes	import	using
Inheritance	class (extends), interface (implements)	class and interface (:)
Visibility	private, package,protected, public	private, protected, internal,internal protected, public
Abstract Class	abstract class X { ... }	abstract class X { ... }
Non-Extensible Class	final class X { ... }	sealed class X { ... }
Non-Writable Field	final	readonly
Non-Extensible Method	final	sealed
Constant	static final	const
Checking Instance Type	instanceof	is
Enums	enum, can have fields, methods and implement interfaces and are typesafe	enum, cannot have methods,fields or implement interfaces, not typesafe
for-each construct	for (item : collection) { ... }	foreach(item in collection) { ... }
Switch-Case	numeric types (int,float...) enums, and now strings (in Java 7)	numeric types, enums and strings
Method Parameters	Object References are passed by Value only	Object reference are passedby Value(default), ref & out
Variable Arguments	method(type... args)	Method(params type[] args)
Catching Exceptions	try { ... } catch (Exception ex) {...}	try { ... } catch (Exception ex) {...}
Meta Type	Class klass = X.class;	Type type = typeof(X);
Meta Information	@Annotation	[Attribute]
Static class	Simulated by private Ctor and static methods	Static class and ctor with static methods
Properties	getProperty(),setProperty()	Property { get; set; } compiler generated get_Property() and set_Property() methods

Selenium script on Java & C#
Developed a sample selenium scripting using Java and ported to C#.




Reference Links

Moving to C# for Java Developers
Java Vs C#