{"id":4032,"date":"2019-10-25T12:02:32","date_gmt":"2019-10-25T12:02:32","guid":{"rendered":"https:\/\/www.folio3.com\/mobile\/?p=4032"},"modified":"2022-01-17T14:22:21","modified_gmt":"2022-01-17T14:22:21","slug":"kotlin-vs-groovy","status":"publish","type":"post","link":"https:\/\/www.folio3.com\/mobile\/blog\/kotlin-vs-groovy\/","title":{"rendered":"Kotlin vs Groovy – The Ultimate Comparison"},"content":{"rendered":"\n

Kotlin is an open-source language, which was developed by JetBrains in 2012. It is a high-level, statically typed programming language that runs on Java Virtual Machine (JVM). Kotlin has both object-oriented and functional constructs. You can use it in both object-oriented and functional programming styles, or mix elements of the two. It also supports features like higher-order functions, extension functions, function types, and lambdas for mobile application development<\/a>. We have outlined the major code and language differences in this Kotlin vs Groovy guide.<\/p>\n\n\n\n

Groovy is an object-oriented<\/a> programming language which is based on the Java platform. Groovy is also a dynamic scripting language for the Java platform. Groovy 1.0 was released in 2007. Groovy is distributed through the Apache License v 2.0. Its syntax is very similar to Java and very easy to learn. Groovy supports closures, multi-line strings, including expressions embedded in strings. <\/p>\n\n\n\n

Core Differences – Kotlin Vs Groovy<\/h3>\n\n\n\n

Kotlin and Groovy Both provide Elvis operator but the ternary operator is missing in Kotlin.<\/p>\n\n\n\n

Kotlin:<\/h4>\n\n\n\n
var displayName: String? = null
displayName=displayName?:”Name” <\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Groovy:<\/h4>\n\n\n\n
\/\/elvis operator
displayName = user.name ? user.name : ‘Anonymous’
displayName = user.name ?: ‘Anonymous’ <\/em>

\/\/ternary operator
result = string ? ‘Found’ : ‘Not found’<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Kotlin is a statically typed language whereas Groovy is dynamically typed language. This means that the type of variable should be known at compile time.<\/p>\n\n\n\n

Kotlin:<\/h4>\n\n\n\n
var name:String = “Kotlin”
Var age:Int = 10

println(name)
println(age)<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Groovy:<\/h4>\n\n\n\n
def age = 10
    def name = ‘Groovy’
   
    println(age)
    println(name) <\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Google announced Kotlin as the official language for android development, whereas Groovy can be used for scripting purposes.<\/p>\n\n\n\n

In Kotlin, a class can be marked as a data class, which provides standard functions and utility functions. Groovy 1.8 provided few new transformations like @ToString<\/strong> & @EqualsAndHashCode<\/strong>. These annotations can provide the same functionalities as Kotlin data class. <\/p>\n\n\n\n

Kotlin:<\/h4>\n\n\n\n
data class User(val name: String, val age: Int) {}
var user = User(“Kotlin”, 15)
println(user)<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Groovy:<\/h4>\n\n\n\n
@ToString
class User{
    String first, last
    int age
    Collection hobbies
}
println new User(first:’Alex’, last:’John’, age:21,    hobbies:[‘Books’, ‘Games’])  <\/em> <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Kotlin\u2019s performance is the same as Java, while Groovy is a little slower than Java or Kotlin because of Closure which is much more expensive than Kotlin lambda.<\/p>\n\n\n\n

Groovy use new <\/strong>keyword for initializing an object while in Kotlin we can directly initialize object without the new <\/strong>keyword. <\/p>\n\n\n\n

Kotlin:<\/h4>\n\n\n\n
class User(val name: String, val age: Int) {}
var user = User(“Kotlin”, 15)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Groovy: <\/h4>\n\n\n\n
class User {
      String name
      int age
    }

    user= new User(name:’Groovy’, age:11)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Groovy syntax is more like Java while Kotlin has very different syntax.<\/p>\n\n\n\n

Kotlin:<\/h4>\n\n\n\n
class Server(){
  override fun toString(): String {
      return “a server”
  }
}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Java:<\/h4>\n\n\n\n
public class Server {
  @Override
  public String toString() {
      return “a server”;
  }
}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Groovy:<\/h4>\n\n\n\n
public class Server {
    public String toString() { return “a server” }
}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Groovy is also a testing-oriented development language with a syntax that supports running tests in IDEs, and Java build tools like Ant or Maven.<\/p>\n\n\n\n

Conclusion – Groovy vs Kotlin
<\/h3>\n\n\n\n

Kotlin and Groovy may have differences but both are JVM languages. Both are developer-friendly languages. The syntax is not the major difference between them but their nature of compilation is very different.<\/p>\n\n\n\n

They are totally interoperable which indicates that they can co-exist in the same application.
<\/p>\n","protected":false},"excerpt":{"rendered":"

Kotlin is an open-source language, which was developed by JetBrains in 2012. It is a high-level, statically typed programming language that runs on Java Virtual Machine (JVM). Kotlin has both object-oriented and functional constructs. You can use it in both object-oriented and functional programming styles, or mix elements of the two. It also supports features … Continue reading “Kotlin vs Groovy – The Ultimate Comparison”<\/span><\/a><\/p>\n","protected":false},"author":37,"featured_media":4066,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4032","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"\nKotlin vs Groovy - The Ultimate Comparison For Beginners<\/title>\n<meta name=\"description\" content=\"Learn the core differences between kotlin and groovy in this guide. 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