How to convert a kotlin source file to a java source file

What is the difference between&nbsp;<code>var</code>&nbsp;and&nbsp;<code>val</code>&nbsp;in Kotlin?

What is the difference between var and val in Kotlin?

I have gone through this link:

https://kotlinlang.org/docs/reference/properties.html

As stated on this link:

The full syntax of a read-only property declaration differs from a mutable one in two ways: it starts with val instead of var and does not allow a setter.

But just before there is an example which uses a setter.

fun copyAddress(address: Address): Address {
    val result = Address() // there's no 'new' keyword in Kotlin
    result.name = address.name // accessors are called
    result.street = address.street
    // ...
    return result
}

What is the exact difference between var and val?

Why do we need both?

This is not a duplicate of Variables in Kotlin, differences with Java. var vs val? as I am asking about the doubt related to the particular example in the documentation and not just in general.

How to use Kotlin - from the Lead Kotlin Language Designer

How to use Kotlin - from the Lead Kotlin Language Designer

In this Kotlin tutorial, the lead Kotlin language designer will show you how you can write more idiomatic Kotlin, what the benefits are, and help you discover some of the most powerful yet lesser known features of Kotlin. Kotlin is similar to the Java programming language, so it's natural that your Kotlin code looks very much like Java code when you are first start to use the language.

Kotlin is similar to the Java programming language, so it's natural that your Kotlin code looks very much like Java code when you are first start to use the language. While this is fine to begin with, you're probably not taking full advantage of all the language benefits. In this session, the lead Kotlin language designer will show you how you can write more idiomatic Kotlin, what the benefits are, and help you discover some of the most powerful yet lesser known features of Kotlin.

Kotlin Programming Fundamentals Tutorial - Learn Kotlin for Beginners

Kotlin Programming Fundamentals Tutorial - Learn Kotlin for Beginners

Kotlin Programming Fundamentals Tutorial - Learn Kotlin for Beginners: Learn programming fundamentals using the Kotlin programming language. Kotlin is an excellent language for GUI Architectures, Libraries, and Server Side Applications. This course will start you off the right way, no matter which path you take with the language. The course features hands-on coding exercises to teach you both Functional, Event Driven, and Object Oriented design patterns.

Kotlin Programming Fundamentals Tutorial - Learn Kotlin for Beginners

Learn programming fundamentals using the Kotlin programming language. Kotlin is an excellent language for GUI Architectures, Libraries, and Server Side Applications. This course will start you off the right way, no matter which path you take with the language. The course features hands-on coding exercises to teach you both Functional, Event Driven, and Object Oriented design patterns.

💻 Code: https://github.com/BracketCove/KotlinCourseSamples

⭐️ Course Contents ⭐️
Section 1
⌨️ (0:00:00) Course Overview: About Me, You, and this Course
⌨️ (0:09:23) How to Run the Examples
⌨️ (0:10:59) Kotlin Syntax Practice for Beginners

Section 2
⌨️ (0:39:26) Data Landscape: Memory Spaces and Named Addresses (References)
⌨️ (0:44:21) How to use "val" and "const val" References to promote Immutability/Efficiency:
⌨️ (0:51:55) Using "var" Reference Types, and the problems with Shared Mutable State!
⌨️ (0:58:58) Giving Structure to Data with Classes

Section 3
⌨️ (1:19:45) A Fundamental Divide: Computation and Control Logic
⌨️ (1:22:52) Computing Data means Solving Problems
⌨️ (1:32:11) Controlling the Flow of Data
⌨️ (1:37:24) Event Driven Programs
⌨️ (1:57:33) Functional versus Imperative Program Style (mild introduction)

Section 4
⌨️ (2:18:38) What is Software Architecture?
⌨️ (2:21:14) Separation of Concerns
⌨️ (2:34:13) Dependency Inversion: Using Interfaces Effectively for Front End and Back End
⌨️ (3:06:22) Extension versus Abstraction: Open/Closed Principle
⌨️ (3:17:00) Dependency Injection: How, What, and Why?
⌨️ (3:30:23) Inversion of Control via the Service Locator Pattern

Section 5
⌨️ (3:44:25) Proving Programs with Tests (a light introduction to Testing)
⌨️ (4:01:42) Solving Problem (Domains) by Analysis

What's New in Java 19: The end of Kotlin?

What's New in Java 19: The end of Kotlin?

What's New in Java 19: The end of Kotlin? Will Kotlin still have a place in the JVM language ecosystem in a few years? This tutorial will compare and contrast how the two languages approach solving the same problems of today's Java. We'll peer a few years into the future to see where both languages are headed and determine whether we still need a Kotlin

Kotlin's introduction was a breath of fresh air at a time when the pace of innovation in Java felt glacial. Since that time, development of Java has rapidly increased with an emphasis on fixing the pain points of the language and the efficiency of data representation in the VM. Will Kotlin still have a place in the JVM language ecosystem in a few years?

This talk will compare and contrast how the two languages approach solving the same problems of today's Java. We'll look at data-carrying types, asynchronous programming, nullability, and more. For some of these, we'll also see how one language sometimes influenced the other. Finally, we'll peer a few years into the future to see where both languages are headed and determine whether we still need a Kotlin (spoiler: we probably do!).