What are the main advantages of using Kotlin over Java?

Kotlin provides several key advantages over Java:\n\n1. Null Safety\n• Prevents NullPointerException at compile time\n• Distinguishes between nullable and non-nullable types\n• Example: var name: String = "John" // Cannot be null\n\n2. Concise Syntax\n• Reduces boilerplate code by up to 40%\n• Data classes auto-generate common methods\n• Example: data class User(val name: String, val age: Int)\n\n3. Extension Functions\n• Add functionality to existing classes without inheritance\n• Example: fun String.isPalindrome() = this == this.reversed()\n\n4. Smart Casts\n• Automatic type casting after null checks\n• Example: if (obj is String) { println(obj.length) }\n\n5. Coroutines\n• Built-in support for asynchronous programming\n• Lightweight alternative to threads\n• Example: suspend fun fetchData() { delay(1000) }\n\n6. 100% Java Interoperability\n• Use existing Java libraries seamlessly\n• Gradual migration from Java projects possible