Kotlin - Return Multiple (2, 3, 5 or even 100) Values From Functions.

[@fotoh1589]

Thanks youuuu

[@DevlogBill]

Excellent video flutter central, coming from JavaScript I am amazed with the Kotlin language, only 8 days in and I am amazed what you can do with this language.
I was wondering? Is there a way where you can take 2 arrays and take parts from each and print out a message? For example, if I have one array with a list of cars and a second array with a list of colors and I wanted to print out println("I own a blue Honda").
I wrote my arrays this way:
val cars = mutableListOf("Honda", "Toyota", "Subaru")
val colors = mutableListOf("Red", "Blue", "Green")
I used google and I am having a hard time figuring this one out.
I tried different methods which are built in kotlin but I failed. I will google for a solution again.
Once again thank you for the video.

[@CodeRewind]

Hi, thank you for your kind comment. It is possible in the following way:
fun main(args: Array) {
val cars = mutableListOf("Honda", "Toyota", "Subaru")
val colors = mutableListOf("Red", "Blue", "Green")
if (cars.size == colors.size){
for (i in 0..cars.size-1){
val car = cars[i]
val color = colors[i]
println("I own a $color $car")
}
} else {
print ("Cars and colors size does not match!")
}
}
Modify it according to your needs .
Happy coding :-)

[@DevlogBill]

@@CodeRewind Oh wow! Thanks! That is what I needed thank you. I guess the resource would be the documentation. I appreciate it.

[@specialstreetfood5324]

kotlin, npm- both not working for me... but when i am checking in CMD promt i can see all version and all... can u help me to run all properly?

[@CodeRewind]

Can you provide the exact error message?

[@specialstreetfood5324]

@@CodeRewind Kotlin: [Internal Error] java.lang.ExceptionInInitializerError
at com.intellij.pom.java.LanguageLevel.(LanguageLevel.java:25)
at com.intellij.core.CoreLanguageLevelProjectExtension.(CoreLanguageLevelProjectExtension.java:26)
at com.intellij.core.JavaCoreProjectEnvironment.(JavaCoreProjectEnvironment.java:42)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreProjectEnvironment.(KotlinCoreProjectEnvironment.kt:26)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$ProjectEnvironment.(KotlinCoreEnvironment.kt:121)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$Companion.createForProduction(KotlinCoreEnvironment.kt:425)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.createCoreEnvironment(K2JVMCompiler.kt:226)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:152)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:52)
at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:88)
at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:44)
at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:98)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1500)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:691)
at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:587)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:705)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:704)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:831)
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected void java.util.ResourceBundle.setParent(java.util.ResourceBundle) accessible: module java.base does not "opens java.util" to unnamed module @a38d7a3
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
at com.intellij.util.ReflectionUtil.makeAccessible(ReflectionUtil.java:252)
at com.intellij.util.ReflectionUtil.getDeclaredMethod(ReflectionUtil.java:269)
at com.intellij.DynamicBundle.(DynamicBundle.java:22)
... 30 more

[@specialstreetfood5324]

i am not getting how to solve this, i am using intelliJ, vs, and Eclipse - in all kotlin program not running

[@CodeRewind]

@@specialstreetfood5324 are you using jdk greater than 16 ? What is the version of your jdk? The problem is that the current version of the Kotlin compiler (1.4.31, 1.5-M1) doesn't work on JDK 16. Please use JDK < 16 for now (StackOverflow).
Can you try to use jdk 11 or 1.8 and let me know if that fix the error?

[@CodeRewind]

also, after changing the JDK, make sure to invalidate the cache.