A modern programming language that makes developers happier.

kotlinlang

```
apply plugin: 'java'
apply plugin: 'kotlin'

[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'

sourceSets.main.java.srcDirs = ['src/']
sourceSets.test.java.srcDirs = ['test/']


dependencies {
    compile project(':shared')
    compile "com.badlogicgames.gdx:gdx:$GDX_VERSION"
    compile "org.jetbrains.kotlin:kotlin-stdlib:$KOTLIN_VERSION"
    compile "de.tomgrill.gdxfacebook:gdx-facebook-core:$GDX_FACEBOOK_VERSION"

    testCompile "org.jetbrains.kotlin:kotlin-test:$KOTLIN_VERSION"
    testCompile "org.jetbrains.kotlin:kotlin-test-junit:$KOTLIN_VERSION"
    testCompile 'junit:junit:4.12'
}
```
and that's core