![]() There is NO package visibility in Kotlin. What's important to note is that internal is not the same as package, don't try to use internal as a replacement for package. In Kotlin however, we have the following visibilities: In Java, we have the following visibilities: visibility in Kotlin (public by default, private, protected, internal) Which is honestly hideous, so if you use the auto-converter, beware that it puts this stuff in your code by default instead of the annotations above. String someUglyMutableField = MålassWithStatics. So the above code in Kotlin would look like this: It's also important for allowing the creation of extension functions that are accessed as "static methods" of a given class. This might sound crazy, but this makes sense for example when you need to use the Parceler interface in combination with the annotation using kotlin-android-extensions (to simplify the creation of CREATORs). Now, this might seem crazy, but it has the super-nice benefits that lets you inherit "static functions" from interfaces into your companion object. Instead, Kotlin introduces the concept of companion objects that store static fields and methods. println( SOME_CONSTANT + " " + someUglyMutableField) Public static String someUglyMutableField = "don't do this like ever" Public static final String SOME_CONSTANT = "Hello!" With all that in consideration, an interface like this: ![]() ![]() Vars can have different visibility modifiers, for example a public getter, but private setter. Package guide.to.kotlin abstract class BaseClass. ![]()
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