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Introduction to Kotlin - Workshop

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Introduction to Kotlin - Workshop

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Sytac sLab Workshop

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  1. 1. INTRODUCTION TO KOTLIN SYTAC - SLAB Shaun Thomas shaunthomas999@gmail.com www.shaunthomas999.com
  2. 2. WHY ARE YOU HERE?
  3. 3. SUPPORT IN INTELLIJ IDEA PROGRAMMING LANGUAGE FROM JETBRAINS
  4. 4. OFFICIAL SUPPORT FOR ANDROID DEVELOPMENT Google I/O 2017
  5. 5. SPRING SUPPORT https://spring.io/blog/2017/01/04/introduc ing-kotlin-support-in-spring-framework-5-0 http://start.spring.io/
  6. 6. GRADLE SUPPORT Ø Use Kotlin for writing Ø Gradle Script Kotlin (build.gradle.kts) Ø Plugins Ø Benefits Ø auto-completion and content assist Ø quick documentation Ø navigation to source Ø refactoring https://blog.gradle.org/kotlin-meets-gradle https://github.com/gradle/kotlin-dsl
  7. 7. INTERESTING FACTS Started development in 2010 at Jetbrains Open sourced in 2012 First official stable release v1 - Feb 15, 2016 (current release v1.1.4 – Aug 15, 2017) Used in all Jetbrains IDEs 100% interoperable with Java Syntax is similar to Swift Influenced by Java, Scala, Groovy, C#, Gosu, JavaScript, Swift
  8. 8. TIME FOR “HELLO WORLD!” Hands-on
  9. 9. DEFAULT IMPORTS https://kotlinlang.org/docs/reference/packages.html
  10. 10. Android JVM Browser Native Kotlin • App development • Use Java 8 features with Java 6 (highest supported ver.) • Wrapper for Java • Alternative to other JVM languages Wrapper for Javascript Native code generation for different platforms incl. iOS LANDSCAPE
  11. 11. ADVANCED HELLO WORLD! Hands-on
  12. 12. VISIBILITY MODIFIERS Top level declarations (classes, functions, properties …) Modifier Visibility Public (default) world Private file Internal module Members inside a class Modifier Visibility Public (default) world Private class Protected class and sub-class Internal module
  13. 13. INTEROP WITH JAVA Hands-on
  14. 14. DATA TYPES & CONTROL FLOWS Walk through
  15. 15. CLASSES Hands-on + Walk through
  16. 16. SAMPLE CODE GITHUB REPO https://github.com/shaunthomas999/kotlin-workshop
  17. 17. CODING EXERCISE - 01 Hands-on
  18. 18. FUNCTIONS Walk through
  19. 19. CODING EXERCISE - 02 Hands-on
  20. 20. DATA CLASSES Hands-on
  21. 21. CODING EXERCISE - 03 Hands-on
  22. 22. SAMPLE SPRING-BOOT APPLICATION WITH SPRING-DATA-REST Walk through https://github.com/shaunthomas999/spring-boot-data-rest-sample
  23. 23. CREATE PROJECT Go to http://start.spring.io/
  24. 24. LET’S WORK ON THE EXERCISE NOW Hands-on
  25. 25. EXTRA KOTLIN-MAVEN-PLUGIN CONFIGURATION REQUIRED
  26. 26. ØGeneral syntax <keyword> <name>: <Type> ØThere is no ‘new’ operator in Kotlin Ø By default Kotlin classes, properties and functions are public and final Ø Everything is an object in Kotlin Ø Numbers, charcters and boolean can have primitive values at runtime Ø main() should not be inside a class
  27. 27. RESOURCES https://kotlinlang.org/community/ https://kotlinlang.org/docs/reference/
  28. 28. THANK YOU Shaun Thomas shaunthomas999@gmail.com www.shaunthomas999.com

Description

Sytac sLab Workshop

Transcript

  1. 1. INTRODUCTION TO KOTLIN SYTAC - SLAB Shaun Thomas shaunthomas999@gmail.com www.shaunthomas999.com
  2. 2. WHY ARE YOU HERE?
  3. 3. SUPPORT IN INTELLIJ IDEA PROGRAMMING LANGUAGE FROM JETBRAINS
  4. 4. OFFICIAL SUPPORT FOR ANDROID DEVELOPMENT Google I/O 2017
  5. 5. SPRING SUPPORT https://spring.io/blog/2017/01/04/introduc ing-kotlin-support-in-spring-framework-5-0 http://start.spring.io/
  6. 6. GRADLE SUPPORT Ø Use Kotlin for writing Ø Gradle Script Kotlin (build.gradle.kts) Ø Plugins Ø Benefits Ø auto-completion and content assist Ø quick documentation Ø navigation to source Ø refactoring https://blog.gradle.org/kotlin-meets-gradle https://github.com/gradle/kotlin-dsl
  7. 7. INTERESTING FACTS Started development in 2010 at Jetbrains Open sourced in 2012 First official stable release v1 - Feb 15, 2016 (current release v1.1.4 – Aug 15, 2017) Used in all Jetbrains IDEs 100% interoperable with Java Syntax is similar to Swift Influenced by Java, Scala, Groovy, C#, Gosu, JavaScript, Swift
  8. 8. TIME FOR “HELLO WORLD!” Hands-on
  9. 9. DEFAULT IMPORTS https://kotlinlang.org/docs/reference/packages.html
  10. 10. Android JVM Browser Native Kotlin • App development • Use Java 8 features with Java 6 (highest supported ver.) • Wrapper for Java • Alternative to other JVM languages Wrapper for Javascript Native code generation for different platforms incl. iOS LANDSCAPE
  11. 11. ADVANCED HELLO WORLD! Hands-on
  12. 12. VISIBILITY MODIFIERS Top level declarations (classes, functions, properties …) Modifier Visibility Public (default) world Private file Internal module Members inside a class Modifier Visibility Public (default) world Private class Protected class and sub-class Internal module
  13. 13. INTEROP WITH JAVA Hands-on
  14. 14. DATA TYPES & CONTROL FLOWS Walk through
  15. 15. CLASSES Hands-on + Walk through
  16. 16. SAMPLE CODE GITHUB REPO https://github.com/shaunthomas999/kotlin-workshop
  17. 17. CODING EXERCISE - 01 Hands-on
  18. 18. FUNCTIONS Walk through
  19. 19. CODING EXERCISE - 02 Hands-on
  20. 20. DATA CLASSES Hands-on
  21. 21. CODING EXERCISE - 03 Hands-on
  22. 22. SAMPLE SPRING-BOOT APPLICATION WITH SPRING-DATA-REST Walk through https://github.com/shaunthomas999/spring-boot-data-rest-sample
  23. 23. CREATE PROJECT Go to http://start.spring.io/
  24. 24. LET’S WORK ON THE EXERCISE NOW Hands-on
  25. 25. EXTRA KOTLIN-MAVEN-PLUGIN CONFIGURATION REQUIRED
  26. 26. ØGeneral syntax <keyword> <name>: <Type> ØThere is no ‘new’ operator in Kotlin Ø By default Kotlin classes, properties and functions are public and final Ø Everything is an object in Kotlin Ø Numbers, charcters and boolean can have primitive values at runtime Ø main() should not be inside a class
  27. 27. RESOURCES https://kotlinlang.org/community/ https://kotlinlang.org/docs/reference/
  28. 28. THANK YOU Shaun Thomas shaunthomas999@gmail.com www.shaunthomas999.com

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