What does java offers that Kotlin doesn’t
1.Checked exceptions - All exception classes in Kotlin are descendants of the class Throwable.
2.Primitive data types - Everything in Kotlin is an object .
3.Static members - Because, if you declare a companion object inside your class, you’ll be able to call it’s members with the same syntax as calling static methods/variables in Java.
4.Wildcard types - If you’re not familiar with it - In java you use bounded wildcards to increase API flexibility.
What does Kotlin offers that Java doesn’t
- Lambda expressions and Inline functions
- Extension functions
- Null Safety (No more annoying null exceptions)
- Smart casts (Yeah, typecasting is boring)
- String templates
- Properties
- Primary constructors
- First-Class delegation
- Singletons (many would argue, you could make singletons in Java, but that’s not officially supported).
- Range Expressions
- Operator Overloading (Good news for C++ developers)
- Companion objects
- Data classes
- Coroutines
And Kotlin is Simpler with engineering practicality than Scala.
There is a reason why Google has announced Kotlin as the official language for Android. If your focus is Android development, you should start learning it. It is worth the effort.
