Contents - Cultural View

Comparison of Java and C Sharp 60
Object initializers No Yes
Collection initializers No; can be modelled Yes
Array initializers Yes Yes
Methods and properties Java C#
Virtual Virtual by default Non-virtual by default
Abstract Yes Yes
Sealing Yes Yes
Explicit interface implementation No Yes
Value (input) parameters Yes Yes
Reference (input/output) parameters No Yes
Output (output) parameters No Yes
Variadic methods Yes Yes
Optional arguments No Yes
Named arguments No Yes
Generator methods No Yes
Extension methods No Yes
Conditional methods No Yes
Partial methods No Yes
Generics Java C#
Reified generics No Yes
Co-variance Yes Yes
Contra-variance Yes Yes
Reference type constraint Yes; implicit Yes
Value/primitive type constraint No Yes
Constructor constraint No Yes
Relation constraint Yes Yes
Primitive/value type support No Yes
Migration compatibility Yes No
Functional programming Java C#
Delegates/method references No Yes
Closures/lambdas No; some use cases covered by anonymous inner
classes
Expression trees No Yes
Query expressions No Yes
Runtime (dynamic) binding Java C#
Late-bound (dynamic) type No Yes
Runtime type information and
manipulation
Yes
Java C#
Runtime type information Yes; but with type erasure Yes
Runtime generics realization No Yes