Flash / Flex / ActionScript/Class/final
Class with final method
<source lang="java">
public class A {
final public function m ( ) { }
} public class B extends A { }
</source>
Preventing Classes from Being Extended and Methods from Being Overridden
<source lang="java">
final class A { } class B extends A { }
</source>
Preventing Inheritance by using final keyword
<source lang="java">
package {
public final class Encrypter { public function encrypt(sourceText:String, key:String):String { } }
}
</source>