https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison

Shows complete examples where the Kotlin code is compiled to bytecode and decompiled to Java
https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison

comparison java kotlin kotlin-vs-java

Last synced: about 1 year ago
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Shows complete examples where the Kotlin code is compiled to bytecode and decompiled to Java

• Host: GitHub
• URL: https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison
• Owner: tomasbjerre
• License: apache-2.0
• Created: 2018-08-20T05:37:12.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2019-09-28T07:11:02.000Z (almost 7 years ago)
• Last Synced: 2025-03-26T13:45:32.056Z (over 1 year ago)
• Topics: comparison, java, kotlin, kotlin-vs-java
• Language: Java
• Homepage:
• Size: 1.57 MB
• Stars: 18
• Watchers: 1
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

          

# Yet Another Kotlin VS Java Comparison

This one shows complete examples where the Kotlin code is compiled to bytecode and decompiled to Java. Enabling a person familiar with Java to very quickly understand Kotlin.

## Examples

The examples are organized like the examples in the [Kotlin Reference](https://kotlinlang.org/docs/reference/).

## Basics 

* **Control Flow**

  * [Assign From If](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/basics/controliiiflow/p01assigniiifromiiiif.md)

  * [Assign If Not Null](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/basics/controliiiflow/p02assigniiiifiiinotiiinull.md)

  * [When](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/basics/controliiiflow/p02when.md)

* **Returns Jumps**

  * [Loop Labels](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/basics/returnsiiijumps/p01loopiiilabels.md)

  * [Return To Label](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/basics/returnsiiijumps/p02returniiitoiiilabel.md)

## Classes And Objects 

* **Classes And Inheritance**

  * [Empty Class](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p01emptyiiiclass.md)

  * [Constructor Param](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p02constructoriiiparam.md)

  * [Init Order Demo](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p03initiiiorderiiidemo.md)

  * [Constructor To Attribute](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p04constructoriiitoiiiattribute.md)

  * [Init From Constructor](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p05initiiifromiiiconstructor.md)

  * [Constructor With Annotation](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p06constructoriiiwithiiiannotation.md)

  * [Secondary Constructor](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p07secondaryiiiconstructor.md)

  * [Default Values](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p08defaultiiivalues.md)

  * [Instantiation](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p09instantiation.md)

  * [Open Closed Data Object](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p10openiiiclosediiidataiiiobject.md)

  * [Inheritance](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p11inheritance.md)

  * [Inheritance No Primary Constructor](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p12inheritanceiiinoiiiprimaryiiiconstructor.md)

  * [Override Method](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p13overrideiiimethod.md)

  * [Derived Class Initialization Order](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p14derivediiiclassiiiinitializationiiiorder.md)

  * [Inner Class](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p15inneriiiclass.md)

  * [Overriding Rules](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/classesiiiandiiiinheritance/p16overridingiiirules.md)

* **Data Classes**

  * [Class Body And Constructor](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/dataiiiclasses/p01classiiibodyiiiandiiiconstructor.md)

  * [Copy](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/dataiiiclasses/p02copy.md)

  * [Destructing](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/dataiiiclasses/p03destructing.md)

  * [Data](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/dataiiiclasses/p10data.md)

* **Generics**

  * [Out Parameter](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/generics/p01outiiiparameter.md)

  * [In Parameter](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/generics/p02iniiiparameter.md)

  * [Copy Out Parameter](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/generics/p03copyiiioutiiiparameter.md)

* **Nested Classes**

  * [Nested Class](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/nestediiiclasses/p01nestediiiclass.md)

  * [Inner Class](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/nestediiiclasses/p02inneriiiclass.md)

  * [Anonymous Class](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/nestediiiclasses/p03anonymousiiiclass.md)

* **Objects**

  * [Object](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/objects/p01object.md)

  * [Companion And Jvmstatic](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/objects/p02companioniiiandiiijvmstatic.md)

* **Properties**

  * [Properties And Fields](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/properties/p01propertiesiiiandiiifields.md)

  * [Setter With Annotation](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/properties/p02setteriiiwithiiiannotation.md)

  * [Var And Val](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/properties/p03variiiandiiival.md)

  * [Lateinit](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/properties/p04lateinit.md)

* **Sealed Classes**

  * [Sealed Class](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/sealediiiclasses/p01sealediiiclass.md)

  * [Not Sealed](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/classesiiiandiiiobjects/sealediiiclasses/p02notiiisealed.md)

## Functions And Lambdas 

* **Functions**

  * [Tail Recursive](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/functionsiiiandiiilambdas/functions/p01tailiiirecursive.md)

  * [Single Expression](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/functionsiiiandiiilambdas/functions/p02singleiiiexpression.md)

  * [Infix](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/functionsiiiandiiilambdas/functions/p03infix.md)

## Mixed 

* **Extensions**

  * [Extending Standard Library](https://github.com/tomasbjerre/yet-another-kotlin-vs-java-comparison/blob/master/doc/mixed/extensions/p01extendingiiistandardiiilibrary.md)