Android Study Jams - Info Session
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The document provides information about a bootcamp info session on Android app development, detailing community-organized study groups called Android Study Jams and their specific sessions. It covers the basics of Kotlin programming, including data types, functions, and code safety features, emphasizing Kotlin's interoperability with Java. Participants are encouraged to join via a link and interact through polls and discussions.
Android Study Jams - Info Session
- 2. Please join through your laptop so that you can follow our steps
- 3. Join at slido.com #137062 ⓘ Start presenting to display the joining instructions on this slide.
- 4. Ice-Breaker
- 5. Tell us which app on your phone is inseparable ⓘ Start presenting to display the poll results on this slide.
- 6. Android Apps
- 7. Android Study Jams are community-organized study groups for people to do hands-on learning for Android app development. Android Basics is a series of sessions focused specifically on learning how to build Android apps without prior Android experience. WHAT ARE ANDROID STUDY JAMS?
- 8. WHAT’S THERE FOR YOU
- 10. HOW TO ENROLL?
- 13. Name any website which you want as an app ⓘ Start presenting to display the poll results on this slide.
- 14. Kotlin A modern programming language that makes developers happier
- 16. BASIC SYNTAX
- 17. JDND JJKSJDNCKS J Svar num : Int = 1 MUTABLE VARIABLE IMMUTABLE VARIABLE val greetings = “Hello”
- 19. MATHEMATICAL OPERATORS + - * / % INCREMENT AND DECREMENT OPERATORS ++ -- ASSIGNMENT OPERATOR = COMPARISON OPERATORS > < >= <= EQUALITY OPERATORS == !=
- 20. Simple Program fun main( ){ println(“Hello”) }
- 21. FUNCTIONS
- 22. fun addNumbers(var num1 : Int,var num2 : Int) : Int{ return num1+num2 } fun main(){ var num1 : Int = 10 var num2 = 20 val total = addNumbers(num1,num2) println("The result = $total") }
- 23. COMPACT FUNCTIONS fun double(x :Int) : Int{ //COMPLETE VERSION x*2 } fun double(x : Int) : Int = x*2 //COMPACT VERSION
- 25. public class JoinClass { private String classCode; private String name; public JoinClass(String classCode, String name) { this.classCode = classCode; this.name = name; } public String getClassCode() { return classCode; } public void setClassCode(String classCode) { this.classCode = classCode; } public String getName() { return name; } public void setName(String name) { this.name = name; } JAVA
- 26. data class JoinClass(var classCode : String, var name : String) KOTLIN
- 27. var playername : String playername = null //compilation error //KOTLIN PROTECTS YOU FROM MISTAKENLY OPERATING ON NULLABLE TYPES var playername : String?=null //nullable types println(playername.length()) //compilation error CODE SAFETY
- 28. INTEROPERABILITY
- 29. Expressiveness Safety Interoperability Structured Concurrency ● Lambdas ● Data Classes ● Scope Functions ● Property access syntax ● Nullability baked into type system ● 100% interoperability with Java programming language ● Run aync operations in a scope, avoid leaking work and memory Kotlin provides . . .
- 30. Thanks for joining Stay Tuned . . .