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Difference between Kotlin vs Java
COMPARISON INDEX | KOTLIN | JAVA |
---|---|---|
Developed By | Kotlin was developed by JetBrains. Andrey Breslav was team leader of project Kotlin. Initial version of Kotlin was released in the 2016. | Java was developed by Sun Microsystems which was later acquired by Oracle Corporation. James Gosling was the lead developer of Java. Initial version of Java was released in the year 1995. |
Code Size | In Kotlin, we have to write 30-40% less code when compared to Java. | In Java, we have to write more code when compared to Kotlin. |
Null Safety | Kotlin does not have null pointer exception problem. Some various ways are provided to deal with this exception. | NullPointerException is most common problem in Java which is occurred when we try to access a member having null reference. |
Checked Exception | It doesn’t have checked exception feature. | It have checked exception feature. |
Operator Overloading | Kotlin allows operator overloading. Programmer can define the operators working according to need. | Java doesn’t support operator overloading. |
Use of Semicolon | It is optional to write semicolon at the end of statements. | In Java each statement must be terminated by semicolon. |
App Size | Android app built with Kotlin has more size because it contains Kotlin as well as Java libraries. Also Gradle build time slower for Kotlin as compared to Java. | Android app built with Java has less size when compared to Kotlin. Gradle build time for Java is little faster when compared to Kotlin. |
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