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Kotlin

Kotlin ek modern, statically-typed programming language hai jo JetBrains ne develop ki hai. Ye…

Overview
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Kotlin — Quick Facts

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Property: Detail

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Full Name: Kotlin Programming Language

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Developer: JetBrains

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First Announced: July 2011 — Not confirmed (exact…

Topic 1
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Infobox

📚 | Property | Detail | |---|---| | Full Name | Kotlin Programming Language | | Developer |…
Topic 2
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History aur Background

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2010: JetBrains ne internal…

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July 2011: Kotlin publicly…

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2012: Open-sourced under Apache…

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February 2016: Kotlin 1.0 release…

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Kyun Kotlin Banaayi Gayi

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data class = ek line me complete…

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? operator = compile-time null…

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Extension functions = existing…

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Coroutines = async programming…

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Key Features

⭐ 1. Null Safety (Compile-time) Kotlin ka type system nullable aur non-nullable types me…
Topic 5
📥 📥 🧠 🔬 💡 🎯

Target Platforms

🔑 Kotlin sirf ek platform ke liye nahi — ye multiple targets pe compile hoti hai. |…
Topic 6
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Kotlin vs Java

✨ | Feature | Kotlin | Java | |---|---|---| | Null Safety | Built-in (compile-time) |…
Topic 7
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Kotlin for Android

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60%+ of top 1000 Android apps…

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Google ke apne apps (Maps, Play,…

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New Android projects me Kotlin…

Topic 8
📥 ⚙️ 🔬 💡

Kotlin Multiplatform

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Common/shared code ek baar likha…

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Platform-specific code alag…

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expect/actual mechanism se…

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Android + iOS: Sabse popular…

Topic 9
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Kotlin Coroutines

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Suspend aur resume ho sakte hain…

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Sequential style me async code…

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Structured concurrency provide…

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Threads: OS-managed, heavy (~1MB…

Topic 10
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Ecosystem aur Tools

💡 Build Tools | Tool | Kotlin Support | |---|---| | Gradle | First-class (Gradle Kotlin DSL…
Topic 11
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Adoption aur Industry Use

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Google: Android framework,…

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Netflix: Server-side microservices…

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Amazon: Some internal services —…

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Uber: Android app + backend…

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Advantages

⭐ 1. Null safety: Compile-time null checks — NPE crashes drastically kam 2. Concise: Java…
Topic 13
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Disadvantages

🔑 1. Compilation speed: Java se thoda slower (K2 compiler se improve ho raha hai) 2.…
Topic 14
📥 📥 🧠 🔬 💡 🎯

Version Timeline

✨ | Version | Year | Key Milestones | |---|---|---| | Project Start | 2010 | JetBrains…
Topic 15
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Mermaid: Kotlin Compilation Flow

🌟 `mermaid flowchart TD A["Kotlin Source Code (.kt)"] --> B{"Target Platform?"} B…
Comparison
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Kotlin vs Java

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Null Safety: Built-in (compile-time)

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Verbosity: Concise (30-40% less code)

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Data Classes: data class (one line)

Diagram
📥 ⚙️ 🔬 💡

Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

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Java

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Android

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JVM

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Jetpack Compose

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Coroutines

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IntelliJ IDEA

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Kotlin ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Kotlin ka 'Full Name' kya hai?

Complete! 🎉
COMPLETE

Kotlin Complete!

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Kotlin Complete

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