This commit is contained in:
Leonid Shalupov
2013-03-29 12:42:45 +04:00
parent bbb526476e
commit 4c3f8ff633
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# Kotlin hello-world example with maven
## Prerequisites to running the example
* download Maven directly from the [Apache Maven homepage](http://maven.apache.org/download.html)
* install and configure your system as described in [the installation section](http://maven.apache.org/download.html#Installation)
## Compiling/Testing/Running the example
If you have maven on your path, simple type:
mvn test
It will compile:
* src/main/kotlin/Hello.kt into target/classes/hello/namespace.class
* src/main/kotlin/Hello.kt into target/test-classes/hello/tests/HelloTest.class
Then run tests, and finnaly run your man hello 'namespace'.
## Only running the example
Once you compiled the sources with previous 'mvn test' command, you can run the application by typing:
mvn exec:java
## Using commandline arguments
If you want to modify the main method in Hello.kt in order to use commandline arguments, you can specify them on commandline as:
mvn exec:java -Dexec.args="argument1"
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<?xml version="1.0" encoding="UTF-8"?>
<project
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>org.jetbrains.kotlin.examples</groupId>
<artifactId>hello-world</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<kotlin.version>0.1-SNAPSHOT</kotlin.version>
<junit.version>4.10</junit.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
<plugins>
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.version}</version>
<configuration/>
<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>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<phase>test</phase>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>hello.HelloPackage</mainClass>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>jetbrains-all</id>
<url>http://repository.jetbrains.com/all</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>jetbrains-all</id>
<url>http://repository.jetbrains.com/all</url>
</pluginRepository>
</pluginRepositories>
</project>
@@ -1,10 +0,0 @@
package hello
public fun getHelloString() : String {
return "Hello, world!"
}
fun main(args : Array<String>) {
println(getHelloString())
}
@@ -1,11 +0,0 @@
package hello.tests
import junit.framework.TestCase
import kotlin.test.assertEquals
import hello.getHelloString
class HelloTest : TestCase() {
fun testAssert() : Unit {
assertEquals("Hello, world!", getHelloString())
}
}
@@ -1,76 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>org.jetbrains.kotlin.examples</groupId>
<artifactId>mixed-code-hello-world</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<kotlin.version>0.1-SNAPSHOT</kotlin.version>
<junit.version>4.10</junit.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.version}</version>
<configuration/>
<executions>
<execution>
<id>compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>test-compile</id>
<phase>process-test-sources</phase>
<goals>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>jetbrains-all</id>
<url>http://repository.jetbrains.com/all</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>jetbrains-all</id>
<url>http://repository.jetbrains.com/all</url>
</pluginRepository>
</pluginRepositories>
</project>
@@ -1,14 +0,0 @@
package hello;
public class JavaHello {
public static String JavaHelloString = "Hello from Java!";
public static String getHelloStringFromKotlin() {
return HelloPackage.KotlinHelloString;
}
public static void main(String[] args) {
System.out.println(getHelloStringFromKotlin());
System.out.println(HelloPackage.getHelloStringFromJava());
}
}
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package hello
public val KotlinHelloString : String = "Hello from Kotlin!"
public fun getHelloStringFromJava() : String {
return JavaHello.JavaHelloString!!;
}
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package hello.tests;
import hello.JavaHello;
import junit.framework.TestCase;
public class HelloTest extends TestCase {
public void testAssert() {
assertEquals("Hello from Kotlin!", JavaHello.getHelloStringFromKotlin());
assertEquals("Hello from Java!", hello.HelloPackage.getHelloStringFromJava());
System.out.println(hello.HelloPackage.getHelloStringFromJava());
}
}