001    package aima.search.informed.ga;
002    
003    /**
004     * Interface representing a fitness function used by the GeneticAlgorithm
005     * to determine the fitness of individuals within the population being
006     * evolved.
007     */
008    
009    /**
010     * @author Ciaran O'Reilly
011     * 
012     */
013    public interface FitnessFunction {
014            Double getValue(String individual);
015    }