!!

?.

jvmTarget

Chat Mobile Application

Kotlin

KotlinMultiplatform/Kotlin-native

Kotlin-native

Coroutines

init start

Test running process exited unexpectedly.

entity::class

interface Action
class Outer(doer: Doer = this.Doer()) : Action by doer { //'this' is not defined in this context
    inner class Doer : Action
}

interface Action
class Outer : Action by Doer() { //Constructor of inner class Doer can be called only with receiver of containing class
    inner class Doer : Action
}

every { <http://myThing.do|myThing.do>() } returns 1 andThenThrows Exception("No way!") andThen 3 andThen 4

every { <http://myThing.do|myThing.do>() } returns 1 
  andThenThrows Exception("No way!") 
  andThen 3 
  andThen 4

private fun twoSome(nums: IntArray, target: Int): IntArray {
    val returnArray: IntArray = intArrayOf()
    var initialVal = nums[0]
    for (num in nums) {
        if (initialVal + num == target) {
            returnArray[0] = initialVal
            returnArray[1] = num
            break
        }
        initialVal = num
    }
    return returnArray
}

ArrayIndexOutOfBoundsException

returnArray

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.635s
[INFO] Finished at: Mon May 11 11:52:50 CEST 2020
[INFO] Final Memory: 7M/231M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.jetbrains.kotlin:kotlin-maven-plugin:1.3.72:compile (compile) on project untitled: Execution compile of goal org.jetbrains.kotlin:kotlin-maven-plugin:1.3.72:compile failed: Unable to load the mojo 'compile' in the plugin 'org.jetbrains.kotlin:kotlin-maven-plugin:1.3.72' due to an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: org/jetbrains/kotlin/maven/K2JVMCompileMojo : Unsupported major.minor version 52.0

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="<http://maven.apache.org/POM/4.0.0>" xmlns:xsi="<http://www.w3.org/2001/XMLSchema-instance>" xsi:schemaLocation="<http://maven.apache.org/POM/4.0.0> <http://maven.apache.org/maven-v4_0_0.xsd>">

    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>untitled</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>org.example untitled</name>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <kotlin.version>1.3.72</kotlin.version>
        <kotlin.code.style>official</kotlin.code.style>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-stdlib</artifactId>
            <version>${kotlin.version}</version>
        </dependency>
    </dependencies>

    <build>
        <sourceDirectory>src/main/kotlin</sourceDirectory>
        <testSourceDirectory>src/test/kotlin</testSourceDirectory>

        <plugins>
            <plugin>
                <groupId>org.jetbrains.kotlin</groupId>
                <artifactId>kotlin-maven-plugin</artifactId>
                <version>${kotlin.version}</version>
                <executions>
                    <execution>
                        <id>compile</id>
                        <phase>compile</phase>
                        <goals>
                            <goal>compile</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>test-compile</id>
                        <phase>test-compile</phase>
                        <goals>
                            <goal>test-compile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

kotlin-maven-plugin

fun <R>myFunc(block: () -> R): R
{
    println("starting)
    try
    {
        return block()
    }
    finally
    {
        println("end")
    }
}

include

visibility = View.GONE

visibility = View.VISIBLE

class UserApiClient(private val rxJavaBasedApi) {
    suspend fun getUser(): User = withContext(<http://Dispatchers.IO|Dispatchers.IO>) {
        rxJavaBasedApi.getUser().blockingGet()
    }
}

var isColorChanged: Boolean? = true;

fun changeScreenClick(view: View) {
        if(isColorChanged==true){
            view_menu_1.resources.getColor(R.color.Yellow)
        }
        else{
            view_menu_2.resources.getDrawable(R.drawable.background_box)
        }
    }

kotlinx.serialization

LocalDateTime

val l = listOf(d1, d2, d3 ,d4 ,d7)

l[5]

l.get(5)

when (func()) {
    in S -> println("$it in S")
    null -> println("null")
    else -> println("$it not in S")
}

return doubleArrayOf(base, tokenSort, tokenSet).max()!!.toInt()

!!

override fun extractAuthentication(map: MutableMap<String, *>)

fold

for