Two Java implementations for a small language benchmark Matthew Jackowski did. http://www.marcinkliks.pl/2015/02/22/swift-vs-others/

TestArray.java

/**
 * Created by @vbsteven on 09/10/15.
 * 
 * Run with "javac TestArray.java && java TestArray"
 */
public class TestArray {
  public static void main(String[] args) {
    long sum = 0;

    for (int i = 0; i < 30; i++) {
      sum = 0;
      int[] x = new int[1000000];
      for (int j = 0; j < 1000000; j++) {
        x[j] = j;
      }

      int[] y = new int[1000000];
      for (int j = 0; j < 1000000 - 1; j++) {
        y[j] = x[j] + x[j + 1];
      }

      for (int j = 0; j < 1000000; j+= 100) {
        sum += y[j];
      }

    }

    System.out.println(sum);
  }
}

TestArrayList.java

import java.util.ArrayList;

/**
 * Created by @vbsteven on 09/10/15.
 * 
 * Run wuth "javac TestArrayList.java && java TestArrayList"
 */
public class TestArrayList {
  public static void main(String[] args) {
    long sum = 0;

    for (int i = 0; i < 30; i++) {
      sum = 0;
      ArrayList<Integer> x = new ArrayList<Integer>();
      for (int j = 0; j < 1000000; j++) {
        x.add(j);
      }

      ArrayList<Integer> y = new ArrayList<>(1000000);
      for (int j = 0; j < 1000000 - 1; j++) {
        y.add(x.get(j) + x.get(j + 1));
      }

      for (int j = 0; j < 1000000; j+= 100) {
        sum += y.get(j);
      }

    }

    System.out.println(sum);
  }
}

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