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Objective-C

Java

Scala

Immutability

Partial - via Collections collections e.g: NSArray/NSMutableArray

No

Yes

Closures

Yes - via Blocks (Extension)

No

Yes - via Anonymous Functions

Static variables

Yes

Yes

No

Static methods or functions

Yes

Yes

No

Concurrency

Yes - via Grand Central Dispatch (Extension)

Yes - via Threads

Yes - via Actors

 

Weakly Typed

Strongly Typed

Strongly Typed

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Objective-C

Java

Scala

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="1914388231711c5f-3ed71ba9-4b55425d-97a28d8c-b4056d8bce59b7de48836a50"><ac:plain-text-body><![CDATA[

getter

[object name]

object.name()

object.name

]]></ac:plain-text-body></ac:structured-macro>

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="5d933d980df5a708-90936f58-458f4fd7-acd39d26-0f07eb92b8f5d9402b100309"><ac:plain-text-body><![CDATA[

setter

[object setName:aName]

object.setName(aName)

object.name = aName

]]></ac:plain-text-body></ac:structured-macro>

...