The document is a presentation about Kotlin vs Java that was presented by Rupali Singh. It introduces Kotlin as a statically typed programming language that runs on the JVM and is interoperable with Java. It outlines several features of Kotlin like null safety, type inference, and extension functions. It also provides interesting facts about Kotlin's growing popularity and adoption by companies like Google and Atlassian. The document compares basic syntax examples of Kotlin and Java code and lists several major projects and companies using Kotlin like Android, Corda, Gradle, Evernote and Coursera.

1. Dev Sanskriti
Vishwavidyalaya
“Java Vs Kotlin”
Presented by:
Rupali Singh
BCA 4th Sem

2. Contents :
➢ Introduction to kotllin
➢ Features of kotlin
➢ Interesting facts about Kotlin
➢ Java vs kotlin
➢ References

3. Introduction to Kotlin :
➢ Statically typed programming language for jvm, Android
and the browser- developer.
➢ Similar to java , but free of its legacy problems and
limitations.
➢ It can be freely mixed with java, existing codebase,
ecosystem, libraries etc.

4. logo :

5. ➢ Null safety
➢ Type inference
➢ Extension functions
➢ Immutable collections
➢ Function types & Lambdas
➢ Default & named arguments
Features of Kotlin :

6. Continue...
➢ Smart casts
➢ Data classes
➢ Enhanced switch case
➢ String interpolation
➢ Great standard library

7. Facts about Kotlin :
➢ On May 2019, Google announced that the Kotlin
programming language is now it’s preferred programming
language for Android app developers.
➢ It’s the 4th most loved programming language according
to the 2019 stack overflow survey.
➢ Kotlin was also won the ‘Breakout project of the year
award’ at OSCON’19.

8. Java Vs Kotlin :
➢ Basic Syntax of Java:
public class JavaProgram{
public static void main(String args [])
{
System.out.println(“Hello World!”);
}
}

9. Continue...
➢ Basic Syntax of kotlin
fun main()
{
println(“Hello World!”) //semicolon is optional
}

10. Kotlin usages Highlights :
➢ Gradle- Gradle is introducing Kotlin as a language for
writing build scripts.
➢ Corda- Corda is an open source distributed ledger
platform, supported by major banks, and built entirely in
Kotlin.
➢ Evernote- Evernote recently integrated Kotlin into their
Android client.

11. ➢ Coursera- Coursera Android app is partially written in
Kotlin.
➢ Pivotal- Spring makes use of Kotlin’s language features to
offer more concise APIs.
➢ Atlassian- All new code in the Trello Android app is in
Kotlin.
Continue...

12. References…
➢ Kotlinlang.org
➢ Playkotlinlang.org

13. Thank
you!