OnesEvolution.java

Factory<Byte> bitFactory = new BitFactory();
int length = 20;

PartialDeepCopyableListFactory<Byte> individualFactory = new PartialDeepCopyableListFactory<Byte>();
individualFactory.setElementFactory(bitFactory);
individualFactory.setSize(length);

int numberOfIndividuals = 100;

DefaultListFactory<DeepCopyableList<Byte>> populationFactory = new DefaultListFactory<DeepCopyableList<Byte>>();
populationFactory.setSize(numberOfIndividuals);
populationFactory.setElementFactory(individualFactory);

List<DeepCopyableList<Byte>> population = null;
try {
  population = populationFactory.createObject();
} catch (InitializationException exception) {
  // handle the exception
}

GeneticEvolutionContext<DeepCopyableList<Byte>> context = new GAEvolutionContext<DeepCopyableList<Byte>>(population);
context.setCrossoverFunction(new TwoPointCrossoverFunction<Byte>());
context.setFitnessFunction(new OnesFitnessFunction(length));
context.setMutationFunction(new OnesMutationFunction());
context.setSelectionFunction(new FitnessProportionateSelection<DeepCopyableList<Byte>>());

int maxGenerations = 100;

MaxGenerationCompletionCondition<DeepCopyableList<Byte>> condition = new MaxGenerationCompletionCondition<DeepCopyableList<Byte>>();
condition.setMaxGenerations(maxGenerations);

try {
  while (!condition.execute(context)) {
    context.stepGeneration();
    System.out.println("Generation " + context.currentGeneration() + ": " + context.currentPopulation());
  }
} catch (EvolutionException exception) {
  // handle the exception
}