Post on 15-Jan-2015
description
Wednesday, October 3, 12
About Me
• Project lead of Kotlin ➡ at JetBrains since 2010
• EG member of JSR-335➡ Project Lambda
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Andrey Breslav
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Outline
• Where Kotlin comes from
• Where features come from
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Motivation
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1995 2012
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Modern languagefor Industry
Right Abstractions Safety Tool Support
Interoperability
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6Users
Expert
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Change theworld!
UsersExpert
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Change theworld!
UsersExpert
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Change theworld!
UsersExpert
It's impossible!
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Incompetence
• Thinking out of the box
• Without knowing it
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LampsGreat for requirements!
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Competence
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Great for implementations
(if you have enough courage)
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– We hate writing stupid constructors!..
– And getters/setters!..
– We want to use fields!..
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– Can't I just say 3.toString()?
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– String doesn't have enough methods!..
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– One return value is too restricting!..
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– List<String> contains objects, doesn't it?!.
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Kotlin's Collections
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– Can you figure out those nulls?!.
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– Doesn't it know that <TD> must be inside a <TR>?!.
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– I could use it for the browser, types and all...
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Kotlin Resources
• Docs: http://kotlin.jetbrains.org
• Demo: http://kotlin-demo.jetbrains.com
• Code: http://github.com/jetbrains/kotlin
• Twitter:➡ @project_kotlin
➡ @abreslav
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