// Create an array to hold the offspring.
IntegerArrayGenome[] offspring = new IntegerArrayGenome[2];
// Perform the operation
opp.performOperation(rnd, parents, 0, offspring, 0);
// Display the results
System.out.println("Parent 1: " + Arrays.toString(parents[0].getData()));
System.out.println("Parent 2: " + Arrays.toString(parents[1].getData()));
System.out.println("Offspring 1: " + Arrays.toString(offspring[0].getData()));