Kotlin Vs Java
Kotlin er en højtydende sprog (udviklet af JetBrains), kører på JVM og bruger eksisterende Java-biblioteker og værktøjer. On the other hand, Java kan også interagere med Kotlin komponenter problemfrit. Det primære mål for Kotlin er at gøre den anvendelig for praktiske virkelige liv projekter, så det er udviklet fra bunden og gjort attraktivt for de eksisterende Java-udviklere. Det er også let at lære i forhold til de andre JVM baserede sprog som Scala. Som Java har en dyb interoperabilitet med Kotlin, Java-udviklere er mere tiltrukket til at lære og teste det. Kotlin har en stærk kommerciel support og stabil forretningsmodel, så det vil ikke sandsynligt at få opgivet i nær fremtid. Fra en udviklers perspektiv, Kotlin er meget lovende, og det vil bringe flere muligheder i de kommende dage. Så vi kan roligt forudsige, at Kotlin vil være den næste store ting for Java samfund.
Løsning af Java udviklingsspørgsmål
JetBrains did not intend to do anything revolutionary with Kotlin. It wanted to provide a useful language that solves existing problems. Kotlin har følgende mål, som vil bidrage til at løse eller undgå de eksisterende problemer i Java og klare sig bedre.
- Provide an intuitive language that can infer from codes written by developers and do a lot of work on behalf of developers.
- Improve productivity by reducing the effort needed to write code. For example, a 50 linjer (ca.) kode skrevet i Java kan reduceres til 2/3 (ca.) linjer i Kotlin.
- Prevent null pointer exceptions.
- Provide quick code compilation.
- Reduce learning time for developers by providing documentation and support.
- Kotlin kode syntaks er let at forstå, så koden anmeldelse er enkel, selv for en ny indfinde.
- Runtime hovedet er også lav som standard bibliotek er lille og kompakt.
Bortset fra de ovennævnte væsentlige fordele, Kotlin giver også masser af andre støtter som let kode konvertering mellem Java og Kotlin, let IDE integration, fuld debugging, re-factoring og profilering mv. So, i alt, Kotlin er helt sikkert vil reducere smerte punkter af Java-udviklere står over.
Elsker Kotlin funktioner
De vigtigste træk ved Kotlin er beskrevet nedenfor som Java-udviklere bør elsker at bruge.
No more null pointer exceptions
This is probably the most important feature. The null pointer exception is one of the most dreaded, unsolved issues developers face. Kotlin’s type system does not compile code that assigns or returns null. See the below example.
val name: String = null // tries to assign null, won’t compile
stephen getName() : String = null // tries to return null, won’t compile
Since every method call on a nullable type can potentially cause a null pointer exception, the Kotlin compiler forces the developer to use the Elvis operator whenever the call result is assigned to a non-null type.
Lesser coding
Kotlin compiler can infer or understand from the code written by a developer and can develop or write the remaining code unlike in Java. Java requires the developer to explicitly write everything which consumes a lot of time and effort. Kotlin saves effort and time and improves productivity. For example, Kotlin compiler can infer types in variable declarations as well as compiler-generated getters/setters/equals/hashCode. On the other hand, the Java compiler does not infer as much and requires the developer to explicitly write code.
Let at lære og bruge til Java-udviklere
Since Kotlin is nothing revolutionary, any software developer can learn and start to use it especially the Java and Scala developers. The main reason is Kotlin is dependent on Java in a lot of ways and extensively uses the Java library, for eksempel. Also, Kotlin was inspired by Scala and according to many; it looks a lot like Scala. Koden bruger JVM og javac, the primary Java compiler. The learning curve for Java developers is not steep and they can leverage the Kotlin documentation and get started quickly with coding.
bagud kompatibel
Kotlin offers backward compatibility for Java versions 6 og 7. It states in its blog that over the next few releases, it is going to speed up development workflow, reduce the size of the runtime library and provide more tooling support. Kotlin will be introducing a feature known as incremental compilation in its Gradle build plug-in. This will enable Kotlin to compile and build only the changes in the code and not the whole code over. This is going to save a lot of time.
interoperabilitet IDE
Kotlin har en masse understøtninger for at øge produktiviteten. Det er meget kompatible med IDE'er, så refactoring, debugging, søger, test af enheder er meget let at udføre.
Implementering og anvendelse af de ovennævnte funktioner er virkelig interessant, så Java-udviklere bør give det en chance og smage skønheden i Kotlin. Kan være, en Java-udvikler kan konvertere en del af hans Java kode i Kotlin og se, hvordan det fungerer. Uanset hvordan vi følger, Kotlin er helt sikkert vil give dig et godt indtryk.
Lad os slutte
Its evolving state notwithstanding, Kotlin already looks like a tool that is going to improve productivity significantly. Many developers are positive about Kotlin enabling them to achieve a breakthrough in their productivity. A discussion on Hacker News website which hosts a discussion on Kotlin reveals that Kotlin solves many Java pain points without really reinventing how coding should be done. What are the challenges ahead? To find huge acceptance, it needs to be able to impress firms like Google which is a huge Java user and has been working on other alternatives to Java. It will be interesting to watch how Kotlin goes about its plans and how it faces the challenges ahead.
