Example of output argument in Java. See this for more details https://www.quora.com/What-is-an-example-of-output-arguments-in-Java

Output Arguments

public class OutputArgument
{
  public static void main (String[]args)
  {
    int[] source = { 1, 2, 3, 4, 5, 6 };
    int[] destination = new int[6];
    copyFromSourceToDestination (source, destination);
    for (int i = 0; i < source.length; i++) {
        System.out.println (destination[i]);
    }
    //Outputs 1 2 3 4 5
  }

  public static void copyFromSourceToDestination (int[]source, int[]destination) {
      for (int i = 0; i < source.length; i++) {
          destination[i] = source[i];
      }
  }
}