Xtend is an actively used programming language created in 2011. Xtend is a general-purpose high-level programming language for the Java Virtual Machine. Syntactically and semantically Xtend has its roots in the Java programming language but focuses on a more concise syntax and some additional functionality such as type inference, extension methods, and operator overloading. Being primarily an object-oriented language, it also integrates features known from functional programming, e.g. Read more on Wikipedia...

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Example code from Linguist:

/*******************************************************************************
 * Copyright (c) 2012 itemis AG (http://www.itemis.eu) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Author - Sven Efftinge
 *******************************************************************************/
package example6

import org.junit.Test
import static org.junit.Assert.*
import java.io.FileReader
import java.util.Set
import static extension com.google.common.io.CharStreams.*

class Movies {
	
	/**
	 * @return the total number of action movies
	 */ 
	@Test def void numberOfActionMovies() {
		assertEquals(828, movies.filter[categories.contains('Action')].size)
	}
	
	/**
	 * @return the year the best rated movie of 80ies (1980-1989) was released.
	 */
	@Test def void yearOfBestMovieFrom80ies() {
		assertEquals(1989, movies.filter[(1980..1989).contains(year)].sortBy[rating].last.year)
	}
	
	/**
	 * @return the sum of the number of votes of the two top rated movies.
	 */
	@Test def void sumOfVotesOfTop2() {
		val long movies = movies.sortBy[-rating].take(2).map[numberOfVotes].reduce[a, b| a + b]
		assertEquals(47_229, movies)
	}
	
	val movies = new FileReader('data.csv').readLines.map[ line |
		val segments = line.split('  ').iterator
		return new Movie(
			segments.next, 
			Integer::parseInt(segments.next), 
			Double::parseDouble(segments.next), 
			Long::parseLong(segments.next), 
			segments.toSet
		)
	]
}

@Data class Movie {
	String title
	int year
	double rating
	long numberOfVotes
	Set<String> categories 
}

Example code from Wikipedia:

def sayHello(String name) '''
    Hello ┬źname┬╗ !
'''

Last updated August 22nd, 2019